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HeroQuest EXE File

2026-06-26T17:15:37Z

Theruler: /* Various */

The original exe is compressed with EXEPACKER, you must decompress with UNP to manipulate it.

{{Executable Infobox
| Interpreted = N
| Platform = MS-DOS
| Code = 16-bit x86
| Games = {{Game|HeroQuest}}
Memory information:''' Code segment = 01EF Data segment = 0B6B Stack segment = 25F2'''
}}

= [CODE SEGMENT] Main Routines =
These are the main routines of the game, disassembled with DOSBOX debugger and annotated.

== in-game main loop ==
01EF:0413 E8E65F call 000063FC ($+5fe6) <---- ???
01EF:0416 E8FA5F call 00006413 ($+5ffa) <---- Checks left mouse button and everityng under it
01EF:0419 C606CC40FF mov byte [40CC],FF ds:[40CC]=DFFF
01EF:041E F606923920 test byte [3992],20 ds:[3992]=9200 <---- Checks if right mouse button has been pressed
01EF:0423 7403 je 00000428 ($+3) (no jmp)
01EF:0425 E82E03 call 00000756 ($+32e) <---- ends the turn if right mouse button pressed
01EF:0428 E85963 call 00006784 ($+6359) <---- ???
01EF:042B E8A202 call 000006D0 ($+2a2) <---- ???
01EF:042E E8E564 call 00006916 ($+64e5) <---- draws in the correct order heroes and forniture
01EF:0431 E84553 call 00005779 ($+5345) <---- same as above?
01EF:0434 E8DD53 call 00005814 ($+53dd) <---- ???
01EF:043A E87B53 call 000057B8 ($+537b) <---- draws heroes, monsters, forniture and doors (not the walls)
01EF:043D E8B454 call 000058F4 ($+54b4) <---- Checks if orthogonal tiles are walkable and updates the directional arrows
01EF:0440 E8A156 call 00005AE4 ($+56a1) <---- Checks if monsters are present in the room and updates search icons
01EF:0443 E81E60 call 00006464 ($+601e) <---- activates attack, magic, treasure, traps icons
01EF:0446 E8CF60 call 00006518 ($+60cf) <---- draws yellow figures on top left
01EF:0449 E8C859 call 00005E14 ($+59c8) <---- draws glove mouse pointer
01EF:044C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0451 7503 jne 00000456 ($+3) (down)
01EF:0453 E88E5C call 000060E4 ($+5c8e) <---- ???
01EF:0456 E87E59 call 00005DD7 ($+597e) <---- Clean the previous mouse sprite
01EF:0459 E85954 call 000058B5 ($+5459) <---- Clean the previous hero sprite
01EF:045C E82100 call 00000480 ($+21) <---- Quest event checks
01EF:045F E8EC13 call 0000184E ($+13ec) <---- Checks if the hero stands on a stair tile
01EF:0462 803E973F00 cmp byte [3F97],00 ds:[3F97]=0000
01EF:0467 7403 je 0000046C ($+3) (no jmp)
01EF:0469 E8BA00 call 00000526 ($+ba) <---- End turn wrap up (resets registers and variables)
01EF:046C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0471 7401 je 00000474 ($+1) (no jmp)
01EF:0473 C3 ret
01EF:0474 803E923940 cmp byte [3992],40 ds:[3992]=9200
01EF:0479 7503 jne 0000047E ($+3) (down)
01EF:047B E94FFE jmp 000002CD ($-1b1) (up)
01EF:047E EB93 jmp short 00000413 ($-6d) (up) <--- goes back on top

== Shooting routine ==
Shooting routine (magic and throwing weapons) is utterly broken in this game. 
The code checks the map tile the projectile is above and determine if the line of sight is blocked or free. 
The way the map is coded resulted in a convoluted code that fails to check LOS. 
'''You can shoot past walls''' and always hit the target if the hero stands in contact with one wall and the target is the adjacent room exactly above or exactly to the right. 
You can also hit the target standing in the perfect diagonal like bishop's movement, and this could happen even if there are no active rooms (solid rock, but marked with 00 like rooms' inner tiles) in between. 
'''LOS is blocked''' by parallel unrevealed secret doors and opened doors. 
 

Weapon check:
01EF:0AB2 32C0 xor al,al
01EF:0AB4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- di+11 is equipped weapon. checks if it is crossbow?
01EF:0AB8 7501 jne 00000ABB ($+1) (no jmp)
01EF:0ABA C3 ret
01EF:0ABB B0FD mov al,FD <-- not crossbow
01EF:0ABD C3 ret
01EF:0ABE 807D1101 cmp byte [di+11],01 ds:[B1A7]=0000 <-- starts here
01EF:0ABF 7D11 jge 00000AD2 ($+11) (down) <-- jump if greater or equal
01EF:0AC1 0174EE add [si-12],si ds:[4DBA]=260D
01EF:0AC4 807D1102 cmp byte [di+11],02 ds:[46A8]=0010 <-- F64511/807D11 are the test/cmp of the equipped weapon
01EF:0AC8 74E8 je 00000AB2 ($-18) (up)
01EF:0ACA 807D1140 cmp byte [di+11],40 ds:[46A8]=0010
01EF:0ACE 74E2 je 00000AB2 ($-1e) (up)
01EF:0AD0 B0FC mov al,FC
01EF:0AD2 EBE0 jmp short 00000AB4 ($-20) (up)
01EF:0AD4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- crossbow
01EF:0AD8 750F jne 00000AE9 ($+f) (no jmp)
01EF:0ADA F6451120 test byte [di+11],20 ds:[46A8]=0010 <-- throwing axe
01EF:0ADE 7509 jne 00000AE9 ($+9) (no jmp)
01EF:0AE0 F6451140 test byte [di+11],40 ds:[46A8]=0010 <-- spear
01EF:0AE4 7503 jne 00000AE9 ($+3) (no jmp)
01EF:0AE6 B0FC mov al,FC
01EF:0AE8 C3 ret

SHOOTING ROUTINE STARTS HERE:
01EF:0AE9 C606B73F01 mov byte [3FB7],01 ds:[3FB7]=0301
01EF:0AEE E82B00 call 00000B1C ($+2b)
01EF:0AF1 32C0 xor al,al
01EF:0AF3 803EA83F01 cmp byte [3FA8],01 ds:[3FA8]=0001 <-- check if LOS is blocked (1)
01EF:0AF8 7401 je 00000AFB ($+1) (down)
01EF:0AFA C3 ret
01EF:0AFB B0FE mov al,FE
01EF:0AFD C606B73F00 mov byte [3FB7],00 ds:[3FB7]=0300
01EF:0B02 C3 ret

01EF:0B1C E81F06 call 0000113E ($+61f)
01EF:0B1F A0A83F mov al,[3FA8] ds:[3FA8]=0001
01EF:0B22 3401 xor al,01
01EF:0B24 A2B23F mov [3FB2],al ds:[3FB2]=0000
01EF:0B27 C3 ret

Set global variables (shooter and target position/distance):
01EF:113E 8B36D43F mov si,[3FD4] ds:[3FD4]=4DC2
01EF:1142 8A7C01 mov bh,[si+01] ds:[4DC3]=0F0A <-- Target X
01EF:1145 8A5C02 mov bl,[si+02] ds:[4DC4]=270F <-- Target Y
01EF:1148 8BCB mov cx,bx
01EF:114A 8B3E3746 mov di,[4637] ds:[4637]=4697
01EF:114E 8A7501 mov dh,[di+01] ds:[4698]=120A <-- Hero X
01EF:1151 8A5502 mov dl,[di+02] ds:[4699]=1212 <-- Hero Y
01EF:1154 8836A53F mov [3FA5],dh ds:[3FA5]=0C0C <-- Hero X saved at 3FA5
01EF:1158 8816A63F mov [3FA6],dl ds:[3FA6]=020C <-- Hero Y saved at 3FA6
01EF:115C C6069F3F00 mov byte [3F9F],00 ds:[3F9F]=0000 <-- reset projectile temp distance (area used for math)
01EF:1161 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0002 <-- reset LOS 0=free, 1=blocked
01EF:1166 B7FF mov bh,FF
01EF:1168 8AC6 mov al,dh
01EF:116A 2AC5 sub al,ch
01EF:116C 7504 jne 00001172 ($+4) (down)
01EF:116E B700 mov bh,00 <-- target is on the RIGHT (>)
01EF:1170 EB06 jmp short 00001178 ($+6) (down)
01EF:1172 7304 jnc 00001178 ($+4) (down)
01EF:1174 F6D8 neg al
01EF:1176 B701 mov bh,01 <-- target is on the LEFT (<)
01EF:1178 A2A13F mov [3FA1],al ds:[3FA1]=0301 <-- horizontal distance shooter-target saved at 3FA1
01EF:117B 8AE8 mov ch,al
01EF:117D B3FF mov bl,FF
01EF:117F 8AC2 mov al,dl
01EF:1181 2AC1 sub al,cl
01EF:1183 7504 jne 00001189 ($+4) (down)
01EF:1185 B300 mov bl,00 <-- target is UNDER (v)
01EF:1187 EB06 jmp short 0000118F ($+6) (down)
01EF:1189 7304 jnc 0000118F ($+4) (down)
01EF:118B F6D8 neg al
01EF:118D B301 mov bl,01 <-- target is ABOVE (^)
01EF:118F A2A23F mov [3FA2],al ds:[3FA2]=0003 <-- vertical distance shooter-target saved at 3FA2
01EF:1192 3AC5 cmp al,ch
01EF:1194 7240 jc 000011D6 ($+40) (no jmp)

bx (bh+bl) registry status based on target/shooter position:
{|class="wikitable"
| 0101 || 0001 || FF01
|-
| 0100 || TRGT || FF00
|-
| 01FF || 00FF || FFFF
|-
|-
|}

VERTICAL shooting routine:
01EF:1196 8ACD mov cl,ch
01EF:1198 8AE8 mov ch,al
01EF:119A 8AD0 mov dl,al
01EF:119C 000E9F3F add [3F9F],cl ds:[3F9F]=0000 <-- update projectile travelled distance
01EF:11A0 38169F3F cmp [3F9F],dl ds:[3F9F]=0000
01EF:11A4 7208 jc 000011AE ($+8) (no jmp)
01EF:11A6 28169F3F sub [3F9F],dl ds:[3F9F]=0000
01EF:11AA 003EA53F add [3FA5],bh ds:[3FA5]=0F0D <-- Temp Projectile X (d 0:F655)
01EF:11AE 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y (d 0:F656)
01EF:11B2 C706E9370000 mov word [37E9],0000 ds:[37E9]=D238 <-- set Vertical flag
01EF:11B8 882EEB37 mov [37EB],ch ds:[37EB]=F1E0 <-- distance between projectile and target
01EF:11BC 80FD01 cmp ch,01
01EF:11BF 7505 jne 000011C6 ($+5) (down)
01EF:11C1 80FBFF cmp bl,FF
01EF:11C4 7403 je 000011C9 ($+3) (no jmp)
01EF:11C6 E84B00 call 00001214 ($+4b)
01EF:11C9 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0000 <-- check if LOS is still free (0), if 1 exits
01EF:11CE 7401 je 000011D1 ($+1) (no jmp)
01EF:11D0 C3 ret
01EF:11D1 FECD dec ch
01EF:11D3 75C7 jne 0000119C ($-39) (up)
01EF:11D5 C3 ret

HORIZONTAL shooting routine:
01EF:11D6 8AD0 mov dl,al
01EF:11D8 8ACD mov cl,ch <-- it moves ch in cl
01EF:11DA 32ED xor ch,ch <-- and puts to 00 ch because uses loop (thus cx) instead of dec ch of vertical routine
01EF:11DC 00169F3F add [3F9F],dl ds:[3F9F]=0001
01EF:11E0 380E9F3F cmp [3F9F],cl ds:[3F9F]=0001
01EF:11E4 7208 jc 000011EE ($+8) (no jmp)
01EF:11E6 280E9F3F sub [3F9F],cl ds:[3F9F]=0001
01EF:11EA 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y
01EF:11EE 003EA53F add [3FA5],bh ds:[3FA5]=0F03 <-- Temp Projectile X
01EF:11F2 C706E9370100 mov word [37E9],0001 ds:[37E9]=0001 <-- set Horizontal flag
01EF:11F8 880EEB37 mov [37EB],cl ds:[37EB]=AA04 <-- distance between projectile and target
01EF:11FC 80F901 cmp cl,01
01EF:11FF 7505 jne 00001206 ($+5) (down)
01EF:1201 80FFFF cmp bh,FF
01EF:1204 7403 je 00001209 ($+3) (no jmp)
01EF:1206 E80B00 call 00001214 ($+b)
01EF:1209 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0001 <-- check if LOS is still free (0), if 1 exits
01EF:120E 7401 je 00001211 ($+1) (no jmp)
01EF:1210 C3 ret
01EF:1211 E2C9 loop 000011DC ($-37)
01EF:1213 C3 ret

Collision check routine on current tile IN WALL/DOORS map (ds:566F):
01EF:1214 53 push bx
01EF:1215 52 push dx
01EF:1216 8A36A63F mov dh,[3FA6] ds:[3FA6]=0839
01EF:121A 8A16A53F mov dl,[3FA5] ds:[3FA5]=3936
01EF:121E E85D4E call 0000607E ($+4e5d)
01EF:1221 80BF6F5600 cmp byte [bx+566F],00 ds:[576C]=8128 <-- Check if tile is 00, if true jumps to the Object map check
01EF:1226 742A je 00001252 ($+2a) (no jmp) at 0B6B:566F is where WALLS/DOORS map is stored
01EF:1228 8A876F56 mov al,[bx+566F] ds:[576C]=8128 <-- mov into al the current TILE (28=is north secret door)
01EF:122C 833EE93701 cmp word [37E9],0001 ds:[37E9]=0001 <-- 1=H, 0=V check for opened door subroutines
01EF:1231 7411 je 00001244 ($+11) (no jmp)

Vertical shoot subroutine that checks for Horizontal walls/doors:
01EF:1233 24AC and al,AC <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1235 0AC0 or al,al AC= 10101100
01EF:1237 7419 je 00001252 ($+19) (no jmp)
01EF:1239 A820 test al,20 <-- if door is Horizontal
01EF:123B 7442 je 0000127F ($+42) (down)
01EF:123D A804 test al,04 <-- if door is opened
01EF:123F 743E je 0000127F ($+3e) (down)
01EF:1241 EB0F jmp short 00001252 ($+f) (down)
01EF:1243 90 nop

Horizontal shoot subroutine that checks for Vertical walls/doors:
01EF:1244 245C and al,5C <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1246 0AC0 or al,al 5C= 01011100
01EF:1248 7408 je 00001252 ($+8) (down)
01EF:124A A810 test al,10 <-- if door is Vertical
01EF:124C 7431 je 0000127F ($+31) (down)
01EF:124E A804 test al,04 <-- if door is opened
01EF:1250 742D je 0000127F ($+2d) (down)

Collision check routine on current tile IN OBJECTS map (ds:586F):
01EF:1252 803EEB3701 cmp byte [37EB],01 ds:[37EB]=6E03 <-- checks if the projectile is about to hit the target
01EF:1257 742B je 00001284 ($+2b) (down)
01EF:1259 80BF6F5800 cmp byte [bx+586F],00 ds:[1576F]=3637 <-- checks if the tile is passable (00)
01EF:125E 740E je 0000126E ($+e) (down)
01EF:1260 8A876F58 mov al,[bx+586F] ds:[1576F]=3637 <-- ds:586F is where OBJECTS map is stored
01EF:1264 BB4649 mov bx,4946 <-- ds:4946 check
01EF:1267 D7 xlat
01EF:1268 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:126B EB17 jmp short 00001284 ($+17) (down)
01EF:126D 90 nop
01EF:126E 8A36A63F mov dh,[3FA6] ds:[3FA6]=004D
01EF:1272 8A16A53F mov dl,[3FA5] ds:[3FA5]=4D4D
01EF:1276 E80E00 call 00001287 ($+e)
01EF:1279 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:127C EB06 jmp short 00001284 ($+6) (down)
01EF:127E 90 nop
01EF:127F C606A83F01 mov byte [3FA8],01 ds:[3FA8]=BA6B <-- sets LOS as blocked (1) and exits
01EF:1284 5A pop dx
01EF:1285 5B pop bx
01EF:1286 C3 ret

Updates with random numbers the first three bytes of heroes' equipment every movement (presumably used as seed for RNG):
01EF:1287 51 push cx
01EF:1288 57 push di
01EF:1289 B90500 mov cx,0005
01EF:128C BF6346 mov di,4663 <-- first byte of Barbarian equipment in memory
01EF:128F 33C0 xor ax,ax
01EF:1291 803D00 cmp byte [di],00 ds:[6CAA]=0000
01EF:1294 740C je 000012A2 ($+c) (down)
01EF:1296 385501 cmp [di+01],dl ds:[6CAB]=0000
01EF:1299 7507 jne 000012A2 ($+7) (no jmp)
01EF:129B 387502 cmp [di+02],dh ds:[6CAC]=0000
01EF:129E 7502 jne 000012A2 ($+2) (no jmp)
01EF:12A0 B001 mov al,01
01EF:12A2 83C71A add di,001A <-- jumps to the following hero's equipment
01EF:12A5 E2EA loop 00001291 ($-16)
01EF:12A7 5F pop di
01EF:12A8 59 pop cx
01EF:12A9 C3 ret

TBD
01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5 <-- ds:5AC5 check
01EF:6088 8B07 mov ax,[bx] ds:[FF00]=3737
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

=== New shooting routine ===
Finally I came up with a proper line of sight mechanism that cover roughly 99% of the "impossible shots". There will always be a particular combiantion of monster-door-hero position that can lead to an "improbable shot", but that's it.

Direction choice routine

1ef:1198: 88 D0 mov al, dl
1ef:119a: 88 CC mov ah, cl
1ef:119c: 05 01 01 add ax, 0x101
1ef:119f: D0 E8 shr al, 1
1ef:11a1: D0 EC shr ah, 1
1ef:11a3: A3 AA 3F mov word ptr [0x3faa], ax <-- save half distance of X and Y

1ef:11a6: 30 C0 xor al, al <-- direction choice routine
1ef:11a8: 3A 0E AB 3F cmp cl, byte ptr [0x3fab] <-- check if X distance reached it's half
1ef:11ac: 74 13 je 0x11c1 <-- if YES reset X half value and change direction
1ef:11ae: 3A 16 AA 3F cmp dl, byte ptr [0x3faa] <-- check if Y distance reached it's half
1ef:11b2: 74 06 je 0x11ba <-- if YES reset Y half value and change direction
1ef:11b4: 38 CA cmp dl, cl
1ef:11b6: 7C 2B jl 0x11e3
1ef:11b8: EB 0C jmp 0x11c6
1ef:11ba: C6 06 AA 3F 00 mov byte ptr [0x3faa], 0
1ef:11bf: EB 22 jmp 0x11e3
1ef:11c1: C6 06 AB 3F 00 mov byte ptr [0x3fab], 0

Vertical
1ef:11c6: 84 D2 test dl, dl <-- vertical routine
1ef:11c8: 74 19 je 0x11e3 <-- if Y distance is zero go to horizontal routine
1ef:11ca: 00 1E A6 3F add byte ptr [0x3fa6], bl
1ef:11ce: B8 00 00 mov ax, 0
1ef:11d1: 80 FB FF cmp bl, 0xff
1ef:11d4: 75 02 jne 0x11d8
1ef:11d6: B4 1A mov ah, 0x1a
1ef:11d8: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11db: FE CA dec dl
1ef:11dd: 88 16 EB 37 mov byte ptr [0x37eb], dl
1ef:11e1: EB 1B jmp 0x11fe

Horizontal
1ef:11e3: 84 C9 test cl, cl <-- horizontal routine
1ef:11e5: 74 DF je 0x11c6 <-- if X distance is zero go to vertical routine
1ef:11e7: 00 3E A5 3F add byte ptr [0x3fa5], bh
1ef:11eb: B8 01 00 mov ax, 1
1ef:11ee: 80 FF FF cmp bh, 0xff
1ef:11f1: 75 02 jne 0x11f5
1ef:11f3: B4 01 mov ah, 1
1ef:11f5: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11f8: FE C9 dec cl
1ef:11fa: 88 0E EB 37 mov byte ptr [0x37eb], cl

1ef:11fe: E8 13 00 call 0x1214 <-- calls wall/object collision check routine
1ef:1201: 80 3E A8 3F 00 cmp byte ptr [0x3fa8], 0 <-- collision flag
1ef:1206: 74 01 je 0x1209
1ef:1208: C3 ret <-- else object or wall was HIT
1ef:1209: 88 C8 mov al, cl
1ef:120b: 00 D0 add al, dl <-- if X+Y distance is not zero
1ef:120d: 75 97 jne 0x11a6 <-- back to direction choice routine
1ef:120f: C3 ret <-- else target was HIT
1ef:1210: 90 nop
1ef:1211: 90 nop
1ef:1212: 90 nop
1ef:1213: 90 nop

Wall/object collision check routine

1ef:1214: 53 push bx
1ef:1215: 52 push dx
1ef:1216: 8A 36 A6 3F mov dh, byte ptr [0x3fa6]
1ef:121a: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:121e: E8 5D 4E call 0x607e
1ef:1221: A0 EA 37 mov al, byte ptr [0x37ea]
1ef:1224: 30 E4 xor ah, ah
1ef:1226: 01 C3 add bx, ax
1ef:1228: 8A 87 6F 56 mov al, byte ptr [bx + 0x566f] <-- checks if the tile is free (00) or occupied (30=rock)
1ef:122c: 3C 00 cmp al, 0
1ef:122e: 74 21 je 0x1251 <-- if occupied jump to specific object check
1ef:1230: 80 3E E9 37 01 cmp byte ptr [0x37e9], 1
1ef:1235: 74 0C je 0x1243
1ef:1237: A8 20 test al, 0x20 <-- Horizontal Door check
1ef:1239: 75 12 jne 0x124d
1ef:123b: A8 80 test al, 0x80 <-- Horizontal Wall check
1ef:123d: 74 12 je 0x1251
1ef:123f: EB 3E jmp 0x127f
1ef:1241: 90 nop
1ef:1242: 90 nop

1ef:1243: A8 10 test al, 0x10 <-- Vertical Door check
1ef:1245: 75 06 jne 0x124d
1ef:1247: A8 40 test al, 0x40 <-- Vertical Wall check
1ef:1249: 74 06 je 0x1251
1ef:124b: EB 32 jmp 0x127f

1ef:124d: A8 04 test al, 4 <-- opened door check
1ef:124f: 74 2E je 0x127f

1ef:1251: 8A 87 6F 58 mov al, byte ptr [bx + 0x586f] <-- specific object check
1ef:1255: BB 86 49 mov bx, 0x4986 <-- bitmask table where object properties are stored
1ef:1258: 51 push cx
1ef:1259: 88 C1 mov cl, al
1ef:125b: C0 E9 03 shr cl, 3
1ef:125e: 01 CB add bx, cx
1ef:1260: 59 pop cx
1ef:1261: 24 07 and al, 7
1ef:1263: 0F A3 07 bt word ptr [bx], ax <-- verify if the object is passable (ie. table) or not (ie. fireplace)
1ef:1266: 72 17 jb 0x127f
1ef:1268: 80 3E EB 37 00 cmp byte ptr [0x37eb], 0 <-- checks if the projectile hit the target
1ef:126d: 74 15 je 0x1284
1ef:126f: 8A 36 A6 3F mov dh, byte ptr [0x3fa6] <-- update projectile's X and Y
1ef:1273: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:1277: E8 0D 00 call 0x1287
1ef:127a: A2 A8 3F mov byte ptr [0x3fa8], al
1ef:127d: EB 05 jmp 0x1284
1ef:127f: C6 06 A8 3F 01 mov byte ptr [0x3fa8], 1
1ef:1284: 5A pop dx
1ef:1285: 5B pop bx
1ef:1286: C3 ret

== Monster attack routine ==
This first block defines the target priority: barbarian - dwarf - elf - wizard - ragnar 
It is possible to revers it forcing the monster to chose the weaker hero first reversing the logic by starting from ragnar profile and then jump backward subtracting 1A. 
See [[#Heroes' default profiles|Heroes' default profiles]] for reference.

01EF:2257 BE6346 mov si,4663 <-- starting profile offset 4663=barbarian
01EF:225A B90500 mov cx,0005 <-- loop repeats 5 times
01EF:225D 51 push cx
01EF:225E 8936D63F mov [3FD6],si ds:[3FD6]=46B1
01EF:2262 8A4419 mov al,[si+19] ds:[46CA]=0003 <-- jumps to hero's ID position
01EF:2265 A2BC3F mov [3FBC],al ds:[3FBC]=0003
01EF:2268 E85800 call 000022C3 ($+58)
01EF:226B 59 pop cx
01EF:226C 8B36D63F mov si,[3FD6] ds:[3FD6]=46B1
01EF:2270 83C61A add si,001A <-- jumps to the next profile
01EF:2273 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0102
01EF:2278 7503 jne 0000227D ($+3) (down)
01EF:227A E95102 jmp 000024CE ($+251) (down)
01EF:227D 803EA83F03 cmp byte [3FA8],03 ds:[3FA8]=0102
01EF:2282 7503 jne 00002287 ($+3) (down)
01EF:2284 E94702 jmp 000024CE ($+247) (down)
01EF:2287 E2D4 loop 0000225D ($-2c)
01EF:2289 C3 ret

01EF:22C3 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000
01EF:22C8 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:22CB 7503 jne 000022D0 ($+3) (no jmp)
01EF:22CD E98101 jmp 00002451 ($+181) (down)
01EF:22D0 8A4403 mov al,[si+03] ds:[4666]=C726 <-- hero's room
01EF:22D3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room
01EF:22D6 7403 je 000022DB ($+3) (down)
01EF:22D8 E97601 jmp 00002451 ($+176) (down)
01EF:22DB F6441801 test byte [si+18],01 ds:[467B]=0000
01EF:22DF 7403 je 000022E4 ($+3) (down)
01EF:22E1 E96D01 jmp 00002451 ($+16d) (down)
01EF:22E4 8B5401 mov dx,[si+01] ds:[4664]=0D06
01EF:22E7 52 push dx
01EF:22E8 57 push di
01EF:22E9 E864F7 call 00001A50 ($-89c)
01EF:22EC 5F pop di
01EF:22ED 57 push di
01EF:22EE E84E02 call 0000253F ($+24e)
01EF:22F1 E8F03D call 000060E4 ($+3df0)
01EF:22F4 B9F401 mov cx,01F4
01EF:22F7 E88D23 call 00004687 ($+238d)
01EF:22FA 5F pop di
01EF:22FB 5A pop dx
01EF:22FC 8816A53F mov [3FA5],dl ds:[3FA5]=1106
01EF:2300 8836A63F mov [3FA6],dh ds:[3FA6]=0411
01EF:2304 BBA240 mov bx,40A2
01EF:2307 891ECA40 mov [40CA],bx ds:[40CA]=40A2
01EF:230B E8703D call 0000607E ($+3d70) <-- if jumped the monster doesn't attack when in contact

01EF:230E 81C36F54 add bx,546F
01EF:2312 8A07 mov al,[bx] ds:[3F28]=4040
01EF:2314 243F and al,3F
01EF:2316 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check. if removed the monster attack through walls and doors
01EF:2319 7403 je 0000231E ($+3) (down)
01EF:231B E93301 jmp 00002451 ($+133) (down)
01EF:231E B501 mov ch,01
01EF:2320 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:2323 2A4501 sub al,[di+01] ds:[4DB9]=0F06
01EF:2326 7504 jne 0000232C ($+4) (no jmp)
01EF:2328 B500 mov ch,00
01EF:232A EB08 jmp short 00002334 ($+8) (down)
01EF:232C 3C80 cmp al,80
01EF:232E 7204 jc 00002334 ($+4) (no jmp)
01EF:2330 F6D8 neg al
01EF:2332 B5FF mov ch,FF
01EF:2334 A2A13F mov [3FA1],al ds:[3FA1]=0100
01EF:2337 882EA33F mov [3FA3],ch ds:[3FA3]=0100
01EF:233B B501 mov ch,01
01EF:233D A0A63F mov al,[3FA6] ds:[3FA6]=0411
01EF:2340 2A4502 sub al,[di+02] ds:[4DBA]=260F
01EF:2343 7504 jne 00002349 ($+4) (no jmp)
01EF:2345 B500 mov ch,00
01EF:2347 EB08 jmp short 00002351 ($+8) (down)
01EF:2349 3C80 cmp al,80
01EF:234B 7204 jc 00002351 ($+4) (no jmp)
01EF:234D F6D8 neg al
01EF:234F B5FF mov ch,FF
01EF:2351 A2A23F mov [3FA2],al ds:[3FA2]=0001
01EF:2354 882EA43F mov [3FA4],ch ds:[3FA4]=0601
01EF:2358 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:235B 89169F3F mov [3F9F],dx ds:[3F9F]=1006
01EF:235F C606A93F00 mov byte [3FA9],00 ds:[3FA9]=0000
01EF:2364 8A5D09 mov bl,[di+09] ds:[4DC1]=8100
01EF:2367 02DB add bl,bl
01EF:2369 02DB add bl,bl
01EF:236B 025D09 add bl,[di+09] ds:[4DC1]=8100
01EF:236E 32FF xor bh,bh
01EF:2370 8A870648 mov al,[bx+4806] [illegal]
01EF:2374 A29C3F mov [3F9C],al ds:[3F9C]=0003
01EF:2377 8A0EA23F mov cl,[3FA2] ds:[3FA2]=0001
01EF:237B A0A13F mov al,[3FA1] ds:[3FA1]=0100
01EF:237E 3AC1 cmp al,cl
01EF:2380 7203 jc 00002385 ($+3) (no jmp)
01EF:2382 EB6A jmp short 000023EE ($+6a) (down)
01EF:2384 90 nop
01EF:2385 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2389 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:238D 7425 je 000023B4 ($+25) (down)
01EF:238F A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:2392 0AC0 or al,al
01EF:2394 741E je 000023B4 ($+1e) (down)
01EF:2396 02F0 add dh,al
01EF:2398 E8DD00 call 00002478 ($+dd)
01EF:239B 3CFF cmp al,FF
01EF:239D 7503 jne 000023A2 ($+3) (no jmp)
01EF:239F E9B500 jmp 00002457 ($+b5) (down)
01EF:23A2 0AC0 or al,al
01EF:23A4 750E jne 000023B4 ($+e) (no jmp)
01EF:23A6 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:23AA E8B000 call 0000245D ($+b0)
01EF:23AD 7303 jnc 000023B2 ($+3) (down)
01EF:23AF E99900 jmp 0000244B ($+99) (down)
01EF:23B2 EBD1 jmp short 00002385 ($-2f) (up)
01EF:23B4 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23B8 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23BB 3AC2 cmp al,dl
01EF:23BD 7503 jne 000023C2 ($+3) (no jmp)
01EF:23BF E98F00 jmp 00002451 ($+8f) (down)
01EF:23C2 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23C5 0AC0 or al,al
01EF:23C7 7503 jne 000023CC ($+3) (no jmp)
01EF:23C9 E98500 jmp 00002451 ($+85) (down)
01EF:23CC 02D0 add dl,al
01EF:23CE E8A700 call 00002478 ($+a7)
01EF:23D1 3CFF cmp al,FF
01EF:23D3 7503 jne 000023D8 ($+3) (no jmp)
01EF:23D5 E97F00 jmp 00002457 ($+7f) (down)
01EF:23D8 0AC0 or al,al
01EF:23DA 7403 je 000023DF ($+3) (down)
01EF:23DC EB73 jmp short 00002451 ($+73) (down)
01EF:23DE 90 nop
01EF:23DF A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23E2 32E4 xor ah,ah
01EF:23E4 E87600 call 0000245D ($+76)
01EF:23E7 7303 jnc 000023EC ($+3) (down)
01EF:23E9 EB60 jmp short 0000244B ($+60) (down)
01EF:23EB 90 nop
01EF:23EC EB97 jmp short 00002385 ($-69) (up)
01EF:23EE 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23F2 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23F5 3AC2 cmp al,dl
01EF:23F7 7426 je 0000241F ($+26) (down)
01EF:23F9 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23FC 0AC0 or al,al
01EF:23FE 741F je 0000241F ($+1f) (down)
01EF:2400 02D0 add dl,al
01EF:2402 E87300 call 00002478 ($+73)
01EF:2405 3CFF cmp al,FF
01EF:2407 7503 jne 0000240C ($+3) (no jmp)
01EF:2409 EB4C jmp short 00002457 ($+4c) (down)
01EF:240B 90 nop
01EF:240C 0AC0 or al,al
01EF:240E 750F jne 0000241F ($+f) (no jmp)
01EF:2410 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:2413 32E4 xor ah,ah
01EF:2415 E84500 call 0000245D ($+45)
01EF:2418 7303 jnc 0000241D ($+3) (down)
01EF:241A EB2F jmp short 0000244B ($+2f) (down)
01EF:241C 90 nop
01EF:241D EBCF jmp short 000023EE ($-31) (up)
01EF:241F 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2423 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:2427 7428 je 00002451 ($+28) (down)
01EF:2429 A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:242C 0AC0 or al,al
01EF:242E 7421 je 00002451 ($+21) (down)
01EF:2430 02F0 add dh,al
01EF:2432 E84300 call 00002478 ($+43)
01EF:2435 3CFF cmp al,FF
01EF:2437 741E je 00002457 ($+1e) (down)
01EF:2439 0AC0 or al,al
01EF:243B 7514 jne 00002451 ($+14) (no jmp)
01EF:243D 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:2441 E81900 call 0000245D ($+19)
01EF:2444 7303 jnc 00002449 ($+3) (down)
01EF:2446 EB03 jmp short 0000244B ($+3) (down)
01EF:2448 90 nop
01EF:2449 EBA3 jmp short 000023EE ($-5d) (up)
01EF:244B C606A83F01 mov byte [3FA8],01 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2450 C3 ret
01EF:2451 C606A83F02 mov byte [3FA8],02 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2456 C3 ret
01EF:2457 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000 <-- hero is reachable
01EF:245C C3 ret

01EF:245D 89169F3F mov [3F9F],dx ds:[3F9F]=1006 <-- called only when the monster needs to move
01EF:2461 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:2465 8807 mov [bx],al ds:[3F28]=6148
01EF:2467 886701 mov [bx+01],ah ds:[3F29]=0061
01EF:246A 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:246F FE06A93F inc byte [3FA9] ds:[3FA9]=0000
01EF:2473 FE0E9C3F dec byte [3F9C] ds:[3F9C]=0003
01EF:2477 C3 ret

01EF:2478 A0BC3F mov al,[3FBC] ds:[3FBC]=0000
01EF:247B E80139 call 00005D7F ($+3901)
01EF:247E 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:2481 7408 je 0000248B ($+8) (down)
01EF:2483 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:2486 7503 jne 0000248B ($+3) (no jmp)
01EF:2488 B0FF mov al,FF
01EF:248A C3 ret

01EF:248B B500 mov ch,00
01EF:248D 382EBC3F cmp [3FBC],ch ds:[3FBC]=0000
01EF:2491 7412 je 000024A5 ($+12) (down)
01EF:2493 8AC5 mov al,ch
01EF:2495 E8E738 call 00005D7F ($+38e7)
01EF:2498 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:249B 7408 je 000024A5 ($+8) (down)
01EF:249D 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:24A0 7503 jne 000024A5 ($+3) (no jmp)
01EF:24A2 B001 mov al,01
01EF:24A4 C3 ret
01EF:24A5 FEC5 inc ch
01EF:24A7 80FD04 cmp ch,04
01EF:24AA 75E1 jne 0000248D ($-1f) (no jmp)
01EF:24AC 52 push dx
01EF:24AD E8CE3B call 0000607E ($+3bce)
01EF:24B0 5A pop dx
01EF:24B1 81C36F58 add bx,586F
01EF:24B5 803F00 cmp byte [bx],00 ds:[3F28]=6148
01EF:24B8 7403 je 000024BD ($+3) (down)
01EF:24BA B002 mov al,02
01EF:24BC C3 ret
01EF:24BD 8A8700FC mov al,[bx-0400] ds:[3B28]=E04B
01EF:24C1 243F and al,3F
01EF:24C3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check.
01EF:24C6 7503 jne 000024CB ($+3) (no jmp)
01EF:24C8 32C0 xor al,al
01EF:24CA C3 ret
01EF:24CB B003 mov al,03
01EF:24CD C3 ret

01EF:24CE 893ED43F mov [3FD4],di ds:[3FD4]=4DB8
01EF:24D2 8A0EA93F mov cl,[3FA9] ds:[3FA9]=0001
01EF:24D6 0AC9 or cl,cl
01EF:24D8 7455 je 0000252F ($+55) (down)
01EF:24DA 32ED xor ch,ch
01EF:24DC BBA240 mov bx,40A2
01EF:24DF 891ECA40 mov [40CA],bx ds:[40CA]=40A4
01EF:24E3 51 push cx
01EF:24E4 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:24E8 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24EB E8903B call 0000607E ($+3b90)
01EF:24EE 8A8F6F58 mov cl,[bx+586F] ds:[59FB]=0000
01EF:24F2 C6876F5800 mov byte [bx+586F],00 ds:[59FB]=0000
01EF:24F7 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:24FB 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24FE 0217 add dl,[bx] ds:[018C]=1149
01EF:2500 027701 add dh,[bx+01] ds:[018D]=0611
01EF:2503 895501 mov [di+01],dx ds:[4DB9]=0F06
01EF:2506 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:250B E8703B call 0000607E ($+3b70)
01EF:250E 888F6F58 mov [bx+586F],cl ds:[AE50]=0A16
01EF:2512 81C36F54 add bx,546F
01EF:2516 895D04 mov [di+04],bx ds:[4DBC]=55E1
01EF:2519 E834F5 call 00001A50 ($-acc)
01EF:251C 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:2520 E81C00 call 0000253F ($+1c)
01EF:2523 E8BE3B call 000060E4 ($+3bbe)
01EF:2526 B9F401 mov cx,01F4
01EF:2529 E85B21 call 00004687 ($+215b) <-- 500.000 nop cycles, to slow down monster's animation
01EF:252C 59 pop cx
01EF:252D E2B4 loop 000024E3 ($-4c)
01EF:252F 51 push cx
01EF:2530 B93200 mov cx,0032
01EF:2533 E86A11 call 000036A0 ($+116a) <-- more nops
01EF:2536 E2FB loop 00002533 ($-5)
01EF:2538 59 pop cx
01EF:2539 E853F8 call 00001D8F ($-7ad) <-- here the monster attacks whein in contact with the hero
01EF:253C E99131 jmp 000056D0 ($+3191) (down)
01EF:253F 8A4502 mov al,[di+02] ds:[EF42]=3736
01EF:2542 32E4 xor ah,ah
01EF:2544 BA000A mov dx,0A00
01EF:2547 F7E2 mul dx
01EF:2549 8BD8 mov bx,ax

01EF:4687 51 push cx
01EF:4688 E820EF call 000035AB ($-10e0)
01EF:468B 59 pop cx
01EF:468C E2F9 loop 00004687 ($-7)
01EF:468E C3 ret

01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5
01EF:6088 8B07 mov ax,[bx] ds:[0130]=0101
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

== Hero's pathfinding routine ==
The pathfinder algorithm the programmer chose was a simple variation of the A*, and is perfectly implemented. You can click on any tiles on the screen even on the invisible ones outside the room. If there is a clean path, the hero will reach that tile.

01EF:6449 E8E2D4 call 0000392E ($-2b1e)
01EF:644C E85800 call 000064A7 ($+58)
01EF:644F 833CFF cmp word [si],FFFF ds:[3911]=0000
01EF:6452 7503 jne 00006457 ($+3) (down)
01EF:6454 E95F03 jmp 000067B6 ($+35f) (down)

01EF:67B6 8B16E747 mov dx,[47E7] ds:[47E7]=0087
01EF:67BA 8B2EE947 mov bp,[47E9] ds:[47E9]=0097
01EF:67BE BB2D40 mov bx,402D
01EF:67C1 BE1941 mov si,4119
01EF:67C4 B93400 mov cx,0034
01EF:67C7 51 push cx
01EF:67C8 8B4402 mov ax,[si+02] ds:[491E]=01C0
01EF:67CB 051800 add ax,0018
01EF:67CE 2BC2 sub ax,dx
01EF:67D0 7302 jnc 000067D4 ($+2) (down)
01EF:67D0 7302 jnc 000067D4 ($+2) (no jmp)
01EF:67D2 F7D8 neg ax
01EF:67D4 D1E8 shr ax,1
01EF:67D6 8B0C mov cx,[si] ds:[4119]=0044
01EF:67D8 83C108 add cx,0008
01EF:67DB 2BCD sub cx,bp
01EF:67DD 7302 jnc 000067E1 ($+2) (no jmp)
01EF:67DF F7D9 neg cx
01EF:67E1 03C1 add ax,cx
01EF:67E3 D1E8 shr ax,1
01EF:67E5 8907 mov [bx],ax ds:[402D]=0000
01EF:67E7 83C302 add bx,0002
01EF:67EA 83C604 add si,0004
01EF:67ED 59 pop cx
01EF:67EE E2D7 loop 000067C7 ($-29)
01EF:67F0 BB2D40 mov bx,402D
01EF:67F3 B8FFFF mov ax,FFFF
01EF:67F6 B93400 mov cx,0034
01EF:67F9 3B07 cmp ax,[bx] ds:[402D]=0000
01EF:67FB 7204 jc 00006801 ($+4) (down)
01EF:67FD 8B07 mov ax,[bx] ds:[4095]=0000
01EF:67FF 8BD1 mov dx,cx
01EF:6801 83C302 add bx,0002
01EF:6804 E2F3 loop 000067F9 ($-d)
01EF:6806 3D0800 cmp ax,0008
01EF:6809 7201 jc 0000680C ($+1) (no jmp)
01EF:680B C3 ret
01EF:680C BB3400 mov bx,0034
01EF:680F 2BDA sub bx,dx
01EF:6811 83FB2D cmp bx,002D
01EF:6814 720B jc 00006821 ($+b) (down)
01EF:6816 83EB2D sub bx,002D
01EF:6819 D1E3 shl bx,1
01EF:681B 8B8F034A mov cx,[bx+4A03] ds:[4A14]=0E09
01EF:681F EB06 jmp short 00006827 ($+6) (down)
01EF:6821 8A8FD649 mov cl,[bx+49D6] ds:[49E7]=1E37
01EF:6825 32ED xor ch,ch
01EF:6827 A1E43F mov ax,[3FE4] ds:[3FE4]=5574
01EF:682A 03C1 add ax,cx
01EF:682C 2D6F54 sub ax,546F
01EF:682F 8BD8 mov bx,ax
01EF:6831 81C36F56 add bx,566F
01EF:6835 3B1E110E cmp bx,[0E11] ds:[0E11]=FFFF
01EF:6839 7501 jne 0000683C ($+1) (down)
01EF:683B C3 ret
01EF:683C 8BD8 mov bx,ax
01EF:683E B500 mov ch,00
01EF:6840 3D1A00 cmp ax,001A
01EF:6843 7207 jc 0000684C ($+7) (down)
01EF:6845 2D1A00 sub ax,001A
01EF:6848 FEC5 inc ch
01EF:684A EBF4 jmp short 00006840 ($-c) (up)
01EF:684C 8AC8 mov cl,al
01EF:684E 8A876F54 mov al,[bx+546F] ds:[AC1A]=0200
01EF:6852 243F and al,3F
01EF:6854 7501 jne 00006857 ($+1) (down)
01EF:6856 C3 ret
01EF:6857 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:685C 7503 jne 00006861 ($+3) (down)
01EF:685E EB11 jmp short 00006871 ($+11) (down)
01EF:6860 90 nop
01EF:6861 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:6866 7501 jne 00006869 ($+1) (down)
01EF:6868 C3 ret
01EF:6869 80BF6F5840 cmp byte [bx+586F],40 ds:[B01A]=0101
01EF:686E 7201 jc 00006871 ($+1) (down)
01EF:6870 C3 ret
01EF:6871 8BD1 mov dx,cx
01EF:6873 51 push cx
01EF:6874 E810AA call 00001287 ($-55f0)
01EF:6877 59 pop cx
01EF:6878 0AC0 or al,al
01EF:687A 7401 je 0000687D ($+1) (down)
01EF:687C C3 ret
01EF:687D 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:6881 880EF03F mov [3FF0],cl ds:[3FF0]=0000
01EF:6885 882EF13F mov [3FF1],ch ds:[3FF1]=0000
01EF:6889 8A4501 mov al,[di+01] ds:[3913]=0000
01EF:688C A2EE3F mov [3FEE],al ds:[3FEE]=0000
01EF:688F A2F53F mov [3FF5],al ds:[3FF5]=0C02
01EF:6892 8A4502 mov al,[di+02] ds:[4665]=200C
01EF:6895 A2EF3F mov [3FEF],al ds:[3FEF]=040C
01EF:6898 A2F63F mov [3FF6],al ds:[3FF6]=000C
01EF:689B E80EC5 call 00002DAC ($-3af2)
01EF:689E 803EC83F00 cmp byte [3FC8],00 ds:[3FC8]=0000
01EF:68A3 7501 jne 000068A6 ($+1) (no jmp)
01EF:68A5 C3 ret
01EF:68A6 BB1340 mov bx,4013
01EF:68A9 891ECC3F mov [3FCC],bx ds:[3FCC]=0000
01EF:68AD C3 ret

01EF:2DAC A0EE3F mov al,[3FEE] ds:[3FEE]=0000
01EF:2DAF 2A06F03F sub al,[3FF0] ds:[3FF0]=1515
01EF:2DB3 7902 jns 00002DB7 ($+2) (no jmp)
01EF:2DB5 F6D8 neg al
01EF:2DB7 8A26EF3F mov ah,[3FEF] ds:[3FEF]=1500
01EF:2DBB 2A26F13F sub ah,[3FF1] ds:[3FF1]=3915
01EF:2DBF 7902 jns 00002DC3 ($+2) (no jmp)
01EF:2DC1 F6DC neg ah
01EF:2DC3 02C4 add al,ah
01EF:2DC5 A2E937 mov [37E9],al ds:[37E9]=3737
01EF:2DC8 A09C3F mov al,[3F9C] ds:[3F9C]=3A3A
01EF:2DCB 32E4 xor ah,ah
01EF:2DCD A3F93F mov [3FF9],ax ds:[3FF9]=3F3E
01EF:2DD0 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=3A3A
01EF:2DD5 C606C83F00 mov byte [3FC8],00 ds:[3FC8]=1515
01EF:2DDA C706F33F0000 mov word [3FF3],0000 ds:[3FF3]=1515
01EF:2DE0 C706CC3F0000 mov word [3FCC],0000 ds:[3FCC]=3B3C

Starting from memory location 0B6B:0A0E the subsequent 512 bytes are set to 1A1A x100h (256 times) by this function:
01EF:2DE6 BF0E0A mov di,0A0E
01EF:2DE9 B90001 mov cx,0100
01EF:2DEC 50 push ax
01EF:2DED B86B0B mov ax,0B6B
01EF:2DF0 8EC0 mov es,ax
01EF:2DF2 58 pop ax
01EF:2DF3 B81A1A mov ax,1A1A
01EF:2DF6 F3AB repe stosw

The code then creates a map with all possible paths of the hero:
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 07 08 09 -- 09 08
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 06 09 0A 09 08 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 05 0A 0B 0A 09 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 04 0B -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 02 01 02 01 02 03 04
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 02 -- -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 03 -- -- -- -- 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 04 -- -- -- -- 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

01EF:2DF8 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:2DFC EB74 jmp short 00002E72 ($+74) (down)
01EF:2DFE 90 nop
01EF:2DFF A0F23F mov al,[3FF2] ds:[3FF2]=0000
01EF:2E02 8B1EF33F mov bx,[3FF3] ds:[3FF3]=0000
01EF:2E06 8887FB3F mov [bx+3FFB],al ds:[411D]=0050
01EF:2E0A 43 inc bx
01EF:2E0B 3B1EF93F cmp bx,[3FF9] ds:[3FF9]=0009
01EF:2E0F 7601 jbe 00002E12 ($+1) (no jmp)
01EF:2E11 C3 ret
01EF:2E12 891EF33F mov [3FF3],bx ds:[3FF3]=0001
01EF:2E16 8A26F93F mov ah,[3FF9] ds:[3FF9]=0009
01EF:2E1A 2AE3 sub ah,bl
01EF:2E1C A0F03F mov al,[3FF0] ds:[3FF0]=0B04
01EF:2E1F 2A06F53F sub al,[3FF5] ds:[3FF5]=0B04
01EF:2E23 7902 jns 00002E27 ($+2) (down)
01EF:2E25 F6D8 neg al
01EF:2E27 3AC4 cmp al,ah
01EF:2E29 7603 jbe 00002E2E ($+3) (down)
01EF:2E2B E98400 jmp 00002EB2 ($+84) (down)
01EF:2E2E A0F13F mov al,[3FF1] ds:[3FF1]=000B
01EF:2E31 2A06F63F sub al,[3FF6] ds:[3FF6]=000B
01EF:2E35 7902 jns 00002E39 ($+2) (down)
01EF:2E37 F6D8 neg al
01EF:2E39 3AC4 cmp al,ah
01EF:2E3B 7775 ja 00002EB2 ($+75) (no jmp)
01EF:2E3D E87700 call 00002EB7 ($+77)
01EF:2E40 7270 jc 00002EB2 ($+70) (no jmp)
01EF:2E42 3E885E00 mov ds:[bp],bl ds:[007A]=0002
01EF:2E46 A0F53F mov al,[3FF5] ds:[3FF5]=0B04
01EF:2E49 3A06F03F cmp al,[3FF0] ds:[3FF0]=0B04
01EF:2E4D 7523 jne 00002E72 ($+23) (no jmp)
01EF:2E4F A0F63F mov al,[3FF6] ds:[3FF6]=000B
01EF:2E52 3A06F13F cmp al,[3FF1] ds:[3FF1]=000B
01EF:2E56 751A jne 00002E72 ($+1a) (no jmp)
01EF:2E58 881EC83F mov [3FC8],bl ds:[3FC8]=0000
01EF:2E5C 57 push di
01EF:2E5D BF1340 mov di,4013
01EF:2E60 BEFB3F mov si,3FFB
01EF:2E63 8A0EC83F mov cl,[3FC8] ds:[3FC8]=0000
01EF:2E67 32ED xor ch,ch
01EF:2E69 890EF93F mov [3FF9],cx ds:[3FF9]=0001
01EF:2E6D F3A4 repe movsb
01EF:2E6F 5F pop di
01EF:2E70 EB40 jmp short 00002EB2 ($+40) (down)
01EF:2E72 C606F23F00 mov byte [3FF2],00 ds:[3FF2]=0100
01EF:2E77 FE0EF63F dec byte [3FF6] ds:[3FF6]=000B

part of 2DF8 routine this writes the temporary math:
01EF:2E7B E881FF call 00002DFF ($-7f) <-- call itself again
01EF:2E7E FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E82 C606F23F01 mov byte [3FF2],01 ds:[3FF2]=0000
01EF:2E87 FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2E8B E871FF call 00002DFF ($-8f) <-- call itself again
01EF:2E8E FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2E92 C606F23F02 mov byte [3FF2],02 ds:[3FF2]=0000
01EF:2E97 FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E9B E861FF call 00002DFF ($-9f) <-- call itself again
01EF:2E9E FE0EF63F dec byte [3FF6] ds:[3FF6]=000B
01EF:2EA2 C606F23F03 mov byte [3FF2],03 ds:[3FF2]=0000
01EF:2EA7 FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2EAB E851FF call 00002DFF ($-af) <-- call itself again
01EF:2EAE FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2EB2 FF0EF33F dec word [3FF3] ds:[3FF3]=0000
01EF:2EB6 C3 ret

== Notable Memory locations for hero's and monster's movement ==

3F92 = CURRENT QUEST
3F93 = Hero's current tile (see tilemap below)
3F94 = ACTIVE HERO'S ROOM

3F99 =
3F9A = END TURN FLAG
3F9B = action performed?
3F9C = REMAINING STEPS
3F9D =
3F9E =
3F9F = MONSTER'S X position
3FA0 = MONSTER'S Y position
3FA1 = Horizontal distance Monster-hero
3FA2 = Vertical distance Monster-hero
3FA3-3FA4 (word) = next monster's step (see 40A2)
3FA5 = HERO'S X position
3FA6 = HERO'S Y position
3FA7 = Active hero
3FA8 = LOS 00=start 01=blocked 02=free
3FA9 = steps to take to reach the hero?
3FB5 = Target Hero ID (FF=Monster)
3FB9 = current total defense dice of the active hero during DEFENSE
3FC5 = Quest specific hero counter (usually identical to 3FC6) modified by 26E8 call
3FC5 = hero counter (complementar) 1111 = 0F = all heroes OUT modified by 26E2 call

3FD0 = WORD map ID (temporary for the quest) offset of ATTACKED monster in map memory (586F)
3FD2 = BYTE rolled skulls (by monsters or heroes)
3FD3 = BYTE rolled shields (by monsters or heroes)
3FD4 = WORD monster's profile location (during attacks)
3FD6 = WORD hero's profile location (during attacks)

3FE7 = QUEST specific OBJECTIVE (1=ACCOMPLISHED)

Memory locations for hero's movement (pathfindig)
3FEE = HERO'S X STARTING POSITION
3FEF = HERO'S Y STARTING POSITION
3FF0 = mouse click X position (X stop)
3FF1 = mouse click Y position (Y stop)
3FF2 = 03
3FF3 = FF
3FF4 = FF
3FF5 = HERO'S X POSITION (copy)
3FF6 = HERO'S Y POSITION (copy)
3FF9 = rolled movement
3FFB - 4012 = math locations that varies among 00,01,02,03, at the end every byte is set to 03 (bytes here are never cleared)
4013 -> locations with definitive hero's path (bytes here are never cleared)

hero's directional movement values:
00 = up
01 = right
02 = down
03 = left
The hero's moving animation is then delegated to the main loop routines that starts reading from 4013 till [3FF9].

4097 = infinite actions if set to a number different from 00
402C = Wand of recall extra action 00=no 01=yes
4BBC = location where TRAP special event number is put upon entering the room (FF=Searched)

40A2 = here is stored the path the monster will follow by 607E (?) call. A sequence of words that specify directional movement
00 01 = down
00 FF = up
FF 00 = left
01 00 = right
40CA = last location of the path to follow. (A640 = 2 moves)

Screen tiles layout. The tile under the current hero is saved in [3F93]
/\
/00\
/\ /\
/01\/02\
/\ /\ /\
/03\/04\/05\
/\ /\ /\ /\
/06\/07\/08\/09\
/\ /\ /\ /\ /\
/0A\/0B\/0C\/0D\/0E\
\ /\ /\ /\ /\ /\
\/0F\/10\/11\/12\/13\
\ /\ /\ /\ /\ /
\/14\/15\/16\/17\/
\ /\ /\ /\ /
\/18\/19\/1A\/
\ /\ /\ /
\/1B\/1C\/
\ /\ /
\/1D\/
\ /
\/

The hero's moving animation is delegated to the in-game main loop routines.

= [DATA SEGMENT] Main Pointers =

The file inside the exe that represents the Data Segment (every byte that is not strictly CODE) starts at offset '''0x9BE0'''. Every pointer is relative to this address. 

== Heroes' default profiles ==

offset mem pointer BP MP EQ AD DD ID
0xE243 0B6B:4663 00 00 00 00 00 00 08 02 1D 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00 00 00 Barbarian
0xE25D 0B6B:467D 00 00 00 00 00 00 07 03 32 00 00 00 00 00 00 80 00 00 00 00 02 02 00 00 00 01 Dwarf
0xE277 0B6B:4697 00 00 00 00 00 00 06 04 35 00 00 00 00 00 00 00 00 00 00 00 02 02 00 00 00 02 Elf
0xE291 0B6B:46B1 00 00 00 00 00 00 04 06 4A 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 03 Wizard
0xE2AB 0B6B:46CB 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 04 Ragnar

The byte positions are the same of [[HeroQuest Savegame Format]]. Load and save operations read and write at these addreses.

When initializing the heroes the default values are resetted by the function 01EF:78D3 that resets all values to zero and Body and Mind points to default
0x00DF74 0B6B:4394 08 07 06 04 02 Default Body point values (last one is Ragnar's)
0x0148FB 0B6B:AD1B 02 03 04 06 00 Default Mind point values

Character initialization code:
01EF:78D3 8A1E9E40 mov bl,[409E] ds:[409E]=0002
01EF:78D7 B700 mov bh,00
01EF:78D9 8B879443 mov ax,[bx+4394] ds:[4396]=0406
01EF:78DD 884406 mov [si+06],al ds:[469D]=0406 <-- sets default body points
01EF:78E0 8A871BAD mov al,[bx-52E5] ds:[FFFFAD1D]=EC8B
01EF:78E4 884407 mov [si+07],al ds:[469E]=3804 <-- sets default mind points
01EF:78E7 C6440E00 mov byte [si+0E],00 ds:[46A5]=0000 <-- resets Owned weapon
01EF:78EB C6440F00 mov byte [si+0F],00 ds:[46A6]=0000 <-- resets Owned armour
01EF:78EF C6440D00 mov byte [si+0D],00 ds:[46A4]=0000 <-- resets Owned special items
01EF:78F3 C744090000 mov word [si+09],0000 ds:[46A0]=000A <-- resets GOLD
01EF:78F8 C6441100 mov byte [si+11],00 ds:[46A8]=0000 <-- resets Equipped weapon
01EF:78FC C6441200 mov byte [si+12],00 ds:[46A9]=0000 <-- resets Equipped special item
01EF:7900 C6441300 mov byte [si+13],00 ds:[46AA]=0200 <-- resets Equipped armour
01EF:7904 885C19 mov [si+19],bl ds:[46B0]=0002 <-- refresh hero's ID
01EF:7907 803E9E4001 cmp byte [409E],01 ds:[409E]=0002 <-- if dwarf
01EF:790C 7504 jne 00007912 ($+4) (down)
01EF:790E 804C0E80 or byte [si+0E],80 ds:[46A5]=0000 <-- gives him the toolkit
01EF:7912 BB0800 mov bx,0008 <-- "The character is renewed" string
01EF:7915 E8D50F call 000088ED ($+fd5) <-- draws the scroll

== Searched room table ==

The game keeps track of the ''searched'' room by storing the value FF into two tables (treasure and traps searches) using the room number as relative offset (''bx''). 
Room numbers go from 00 to 2A so each table is 2B bytes long and every byte of the table is set to 00 at the beginnng of the quest. 
The code that puts FF into the table: 
mov byte ptr [bx+4B70h], 0FFh [0B6B:4B70] starting address of TREASURE search
mov byte ptr [bx+4B9Bh], 0FFh [0B6B:4B9B] starting address of TRAPS/SECRET PASSAGES search
NOTE: upon starting a quest, every Special event ID is put into these tables replacing the 00.

== Equipment screen ==
With ''position on screen'' is intended the string header 11XXYY

0x014863 Hero's classes label (ie. Barbarian) position on screen
0x00DF2B pointers block to default Hero's classes (5 pointers)
0x00DF35 default Hero's classes labels (5 Labels)

0x014873 Hero's name label (ie. Sigmar) position on screen
0x00E1B7 pointers block to default Hero's names
0x00E1C5 default Hero's names labels (5 Labels)

0x0141A4 first epilogue panel text (its pointer '''A5C4''' is written inside the code at offset 0x0649)
0x0143A2 second epilogue panel text (its pointer '''A7C2''' is written inside the code at offset 0x0658)

0x0147F7 actual gear prices (hexadecimal) - 4x12 = 30 Bytes (2 bytes for equipment bit mask and 2 bytes for default price, little endian)
0x01482B pointers block to single gear costs - 2xC = 18 Bytes
0x014843 price (in decimal) labels - 1F Bytes

0x01486F "GOLD" label position on screen
0x014867 gold amount position on screen (default is 0000)
0x014877 equipment names position on screen
0x01487B pointers block to the pointers in [language].bin where the item names are - 0x18 Bytes

== Various ==
Every WORD offsets are hexadecimal, little endian values.

0x00CDF3: Game font (2F0h bytes long). 8x8 - 94 chars, can be edited with Nyerguds' Westwood font editor.

0x00DCB5: Sequence of 20 bytes (4 groups of 5 bytes) with facing codes of the heroe's sprites in the 4 directions (S-E-W-N).
0x00DCC9: 4 words for sprite direction codification FF00=South ecc..
0x00DF95: Sequence of 11 groups of 4 bytes used for teleportation in "castle of mistery" quest (Room, X, Y, door direction that could be 00,01,1A)
0x00DFDC: Sequence of 21 groups of 3 words used to define furniture (first word: X,Y dimension of the frame - second word: Y,X offset in pixels from the origin tile - third word: offset of the frame in FURN.VGA)
0x00E05B: Group of 4 offsets for the walls graphics in graphics.vga (2 wariations of the left wall and 2 of the right wall).
0x00E062: 26 bytes (00 or 01) used for wall variations based on ROOM tile position number (see diamond scheme above). Basically each position has its own fixed wall texture that is displayed only if a wall is present.
0x00E3E6: List of 28 (1Ch) Groups of 5 bytes each representing Movement (BYTE), Attack (BYTE), Defense (BYTE) and Death special event offset (WORD) of each monster (00-1B).
0x00E8E8: 32 pointers (words) to the monster profiles in game.
0x00E92A: Monster's profiles location. Monsters are numbered in-game from 00 to 20h (maximum) and profiles (10 bytes) are stored starting from here (0x4D4A in memory).
0x00ED28: Sequence of 256 BYTES used as index for drawing the 2D map walls, listing all possible states of wall and doors (values from 00 to FF that refer to the graphic slot IDs inside MAPS.VGA).
0x00F64F: List of 12 pointers to magic spells specific routines into code segment.
0x00F669: List of 30 pointers to special events specific routines into code segment.
0x00F6A5: List of 30 pointers to monster's profiles location in memory (each pointer is 1A from the other).
0x00F703: VGA Palette - 300h bytes as RGB 256 colours
0x00FB9D: Position on screen of the object's name in 2D map (monsters, furniture, heroes etc...)

0x013CDD: List of 31 (words) offsets of the HEROES frame animation (attack, defense, death) in MEN.VGA
0x013D1B: List of 31 (words) frame dimensions (X,Y) of the previous corresponding frames in MEN.VGA
0x013D59: List of 31 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the previous corresponding frames in MEN.VGA
0x013D97: List of 8 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the monster animation frames in MONSTERS.VGA
0x014125: Sequence of 42 offsets (84 bytes) to the tile graphic of the rooms and corridors of isometric map (01-13 points all to 1F80, the tile for the corridors)
0x014179: Sequence of 2A bytes that are indexes of the tile graphic of the rooms and corridors of 2D map (01-13 are all 01, the index tile for the corridors)

0x014920: position on screen of a bar filled with 20h char used to delete the equipment names while moving the mouse over the icons
0x014924: Text colour (1F is white)
0x014925: Background colour (14 is transparent)
0x014943: equipment names position on screen during a quest (the subsequent 28 zeroes are the placeholder)

0x014A42: Sequence of 7 pointers in language.bin of the potion effect texts
0x00E472: Sequence of 5 pointers in language.bin of the potion finding texts (all but holy water and heroic brew, that has direct pointers inside the code)
0x00E4FE: Sequence of 1Ch pointers in language.bin of the monsters names (2D map)
0x00E536: Sequence of 30h index in maps.vga that assign names of the object (01=fallen rock, 00=all traps or hidden objects with no name, 03=Stairs) in OBJECT BLOCK order.
0x00E566: 23h bitmasks that define which object is passable by projectiles
0x00EE2D: Offsets (12) sequence of object icons in maps.vga (from ID 30 to 3B, 00D1 = fallen rock)
0x00EE45: Offsets sequence of monster's icons in maps.vga (ID 00 = 40D3 = goblin)
0x00EE95: Sequence of 2Ch memory pointers to the profile of the 2D furnitures icons
0x00EEC1: Sequence of 2Ch profiles of the 2D furnitures icons that tells how the full picture is composed

== Intro Sequence ==
Every text panel of the intro resides into '''INTRO.EXE''' and they're in English only. 
In order to translate them (or change the lenght of the text) you have to uncompress the exe first, then Locate every pointers of each panel. 
The data segment inside the exe starts at '''0x01C0'''. Every pointer is relative to this address. 

{|class="wikitable"
! Panel # !! default pointer value !! pointer exe offset
|-
| 1 || 0603 || 0x0212
|-
| 2 || F203 || 0x0214
|-
| 3 || 9B04 || 0x0216
|-
| 4 || 8706 || 0x0218
|-
| 5 || 7008 || 0x021A
|-
| 6 || CA0A || 0x021C
|}
The panels layout follows the same rules described under [[HeroQuest Strings Format]]

0x001675 Game font, this is the exact copy of the font in quest.exe (See various offests section above).

= Protection screen =
to restore shield protection in UNCOMPRESSED QUEST.EXE modify
offset 0x0541 from 90 90 90 to E8 DC FE (if you modify these bytes only the shield screen stays and regardless of page entered the game starts anyway)
offset 0x0549 from EB to 74

HeroQuest EXE File

2026-06-26T16:24:53Z

Theruler: /* Various */

The original exe is compressed with EXEPACKER, you must decompress with UNP to manipulate it.

{{Executable Infobox
| Interpreted = N
| Platform = MS-DOS
| Code = 16-bit x86
| Games = {{Game|HeroQuest}}
Memory information:''' Code segment = 01EF Data segment = 0B6B Stack segment = 25F2'''
}}

= [CODE SEGMENT] Main Routines =
These are the main routines of the game, disassembled with DOSBOX debugger and annotated.

== in-game main loop ==
01EF:0413 E8E65F call 000063FC ($+5fe6) <---- ???
01EF:0416 E8FA5F call 00006413 ($+5ffa) <---- Checks left mouse button and everityng under it
01EF:0419 C606CC40FF mov byte [40CC],FF ds:[40CC]=DFFF
01EF:041E F606923920 test byte [3992],20 ds:[3992]=9200 <---- Checks if right mouse button has been pressed
01EF:0423 7403 je 00000428 ($+3) (no jmp)
01EF:0425 E82E03 call 00000756 ($+32e) <---- ends the turn if right mouse button pressed
01EF:0428 E85963 call 00006784 ($+6359) <---- ???
01EF:042B E8A202 call 000006D0 ($+2a2) <---- ???
01EF:042E E8E564 call 00006916 ($+64e5) <---- draws in the correct order heroes and forniture
01EF:0431 E84553 call 00005779 ($+5345) <---- same as above?
01EF:0434 E8DD53 call 00005814 ($+53dd) <---- ???
01EF:043A E87B53 call 000057B8 ($+537b) <---- draws heroes, monsters, forniture and doors (not the walls)
01EF:043D E8B454 call 000058F4 ($+54b4) <---- Checks if orthogonal tiles are walkable and updates the directional arrows
01EF:0440 E8A156 call 00005AE4 ($+56a1) <---- Checks if monsters are present in the room and updates search icons
01EF:0443 E81E60 call 00006464 ($+601e) <---- activates attack, magic, treasure, traps icons
01EF:0446 E8CF60 call 00006518 ($+60cf) <---- draws yellow figures on top left
01EF:0449 E8C859 call 00005E14 ($+59c8) <---- draws glove mouse pointer
01EF:044C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0451 7503 jne 00000456 ($+3) (down)
01EF:0453 E88E5C call 000060E4 ($+5c8e) <---- ???
01EF:0456 E87E59 call 00005DD7 ($+597e) <---- Clean the previous mouse sprite
01EF:0459 E85954 call 000058B5 ($+5459) <---- Clean the previous hero sprite
01EF:045C E82100 call 00000480 ($+21) <---- Quest event checks
01EF:045F E8EC13 call 0000184E ($+13ec) <---- Checks if the hero stands on a stair tile
01EF:0462 803E973F00 cmp byte [3F97],00 ds:[3F97]=0000
01EF:0467 7403 je 0000046C ($+3) (no jmp)
01EF:0469 E8BA00 call 00000526 ($+ba) <---- End turn wrap up (resets registers and variables)
01EF:046C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0471 7401 je 00000474 ($+1) (no jmp)
01EF:0473 C3 ret
01EF:0474 803E923940 cmp byte [3992],40 ds:[3992]=9200
01EF:0479 7503 jne 0000047E ($+3) (down)
01EF:047B E94FFE jmp 000002CD ($-1b1) (up)
01EF:047E EB93 jmp short 00000413 ($-6d) (up) <--- goes back on top

== Shooting routine ==
Shooting routine (magic and throwing weapons) is utterly broken in this game. 
The code checks the map tile the projectile is above and determine if the line of sight is blocked or free. 
The way the map is coded resulted in a convoluted code that fails to check LOS. 
'''You can shoot past walls''' and always hit the target if the hero stands in contact with one wall and the target is the adjacent room exactly above or exactly to the right. 
You can also hit the target standing in the perfect diagonal like bishop's movement, and this could happen even if there are no active rooms (solid rock, but marked with 00 like rooms' inner tiles) in between. 
'''LOS is blocked''' by parallel unrevealed secret doors and opened doors. 
 

Weapon check:
01EF:0AB2 32C0 xor al,al
01EF:0AB4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- di+11 is equipped weapon. checks if it is crossbow?
01EF:0AB8 7501 jne 00000ABB ($+1) (no jmp)
01EF:0ABA C3 ret
01EF:0ABB B0FD mov al,FD <-- not crossbow
01EF:0ABD C3 ret
01EF:0ABE 807D1101 cmp byte [di+11],01 ds:[B1A7]=0000 <-- starts here
01EF:0ABF 7D11 jge 00000AD2 ($+11) (down) <-- jump if greater or equal
01EF:0AC1 0174EE add [si-12],si ds:[4DBA]=260D
01EF:0AC4 807D1102 cmp byte [di+11],02 ds:[46A8]=0010 <-- F64511/807D11 are the test/cmp of the equipped weapon
01EF:0AC8 74E8 je 00000AB2 ($-18) (up)
01EF:0ACA 807D1140 cmp byte [di+11],40 ds:[46A8]=0010
01EF:0ACE 74E2 je 00000AB2 ($-1e) (up)
01EF:0AD0 B0FC mov al,FC
01EF:0AD2 EBE0 jmp short 00000AB4 ($-20) (up)
01EF:0AD4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- crossbow
01EF:0AD8 750F jne 00000AE9 ($+f) (no jmp)
01EF:0ADA F6451120 test byte [di+11],20 ds:[46A8]=0010 <-- throwing axe
01EF:0ADE 7509 jne 00000AE9 ($+9) (no jmp)
01EF:0AE0 F6451140 test byte [di+11],40 ds:[46A8]=0010 <-- spear
01EF:0AE4 7503 jne 00000AE9 ($+3) (no jmp)
01EF:0AE6 B0FC mov al,FC
01EF:0AE8 C3 ret

SHOOTING ROUTINE STARTS HERE:
01EF:0AE9 C606B73F01 mov byte [3FB7],01 ds:[3FB7]=0301
01EF:0AEE E82B00 call 00000B1C ($+2b)
01EF:0AF1 32C0 xor al,al
01EF:0AF3 803EA83F01 cmp byte [3FA8],01 ds:[3FA8]=0001 <-- check if LOS is blocked (1)
01EF:0AF8 7401 je 00000AFB ($+1) (down)
01EF:0AFA C3 ret
01EF:0AFB B0FE mov al,FE
01EF:0AFD C606B73F00 mov byte [3FB7],00 ds:[3FB7]=0300
01EF:0B02 C3 ret

01EF:0B1C E81F06 call 0000113E ($+61f)
01EF:0B1F A0A83F mov al,[3FA8] ds:[3FA8]=0001
01EF:0B22 3401 xor al,01
01EF:0B24 A2B23F mov [3FB2],al ds:[3FB2]=0000
01EF:0B27 C3 ret

Set global variables (shooter and target position/distance):
01EF:113E 8B36D43F mov si,[3FD4] ds:[3FD4]=4DC2
01EF:1142 8A7C01 mov bh,[si+01] ds:[4DC3]=0F0A <-- Target X
01EF:1145 8A5C02 mov bl,[si+02] ds:[4DC4]=270F <-- Target Y
01EF:1148 8BCB mov cx,bx
01EF:114A 8B3E3746 mov di,[4637] ds:[4637]=4697
01EF:114E 8A7501 mov dh,[di+01] ds:[4698]=120A <-- Hero X
01EF:1151 8A5502 mov dl,[di+02] ds:[4699]=1212 <-- Hero Y
01EF:1154 8836A53F mov [3FA5],dh ds:[3FA5]=0C0C <-- Hero X saved at 3FA5
01EF:1158 8816A63F mov [3FA6],dl ds:[3FA6]=020C <-- Hero Y saved at 3FA6
01EF:115C C6069F3F00 mov byte [3F9F],00 ds:[3F9F]=0000 <-- reset projectile temp distance (area used for math)
01EF:1161 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0002 <-- reset LOS 0=free, 1=blocked
01EF:1166 B7FF mov bh,FF
01EF:1168 8AC6 mov al,dh
01EF:116A 2AC5 sub al,ch
01EF:116C 7504 jne 00001172 ($+4) (down)
01EF:116E B700 mov bh,00 <-- target is on the RIGHT (>)
01EF:1170 EB06 jmp short 00001178 ($+6) (down)
01EF:1172 7304 jnc 00001178 ($+4) (down)
01EF:1174 F6D8 neg al
01EF:1176 B701 mov bh,01 <-- target is on the LEFT (<)
01EF:1178 A2A13F mov [3FA1],al ds:[3FA1]=0301 <-- horizontal distance shooter-target saved at 3FA1
01EF:117B 8AE8 mov ch,al
01EF:117D B3FF mov bl,FF
01EF:117F 8AC2 mov al,dl
01EF:1181 2AC1 sub al,cl
01EF:1183 7504 jne 00001189 ($+4) (down)
01EF:1185 B300 mov bl,00 <-- target is UNDER (v)
01EF:1187 EB06 jmp short 0000118F ($+6) (down)
01EF:1189 7304 jnc 0000118F ($+4) (down)
01EF:118B F6D8 neg al
01EF:118D B301 mov bl,01 <-- target is ABOVE (^)
01EF:118F A2A23F mov [3FA2],al ds:[3FA2]=0003 <-- vertical distance shooter-target saved at 3FA2
01EF:1192 3AC5 cmp al,ch
01EF:1194 7240 jc 000011D6 ($+40) (no jmp)

bx (bh+bl) registry status based on target/shooter position:
{|class="wikitable"
| 0101 || 0001 || FF01
|-
| 0100 || TRGT || FF00
|-
| 01FF || 00FF || FFFF
|-
|-
|}

VERTICAL shooting routine:
01EF:1196 8ACD mov cl,ch
01EF:1198 8AE8 mov ch,al
01EF:119A 8AD0 mov dl,al
01EF:119C 000E9F3F add [3F9F],cl ds:[3F9F]=0000 <-- update projectile travelled distance
01EF:11A0 38169F3F cmp [3F9F],dl ds:[3F9F]=0000
01EF:11A4 7208 jc 000011AE ($+8) (no jmp)
01EF:11A6 28169F3F sub [3F9F],dl ds:[3F9F]=0000
01EF:11AA 003EA53F add [3FA5],bh ds:[3FA5]=0F0D <-- Temp Projectile X (d 0:F655)
01EF:11AE 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y (d 0:F656)
01EF:11B2 C706E9370000 mov word [37E9],0000 ds:[37E9]=D238 <-- set Vertical flag
01EF:11B8 882EEB37 mov [37EB],ch ds:[37EB]=F1E0 <-- distance between projectile and target
01EF:11BC 80FD01 cmp ch,01
01EF:11BF 7505 jne 000011C6 ($+5) (down)
01EF:11C1 80FBFF cmp bl,FF
01EF:11C4 7403 je 000011C9 ($+3) (no jmp)
01EF:11C6 E84B00 call 00001214 ($+4b)
01EF:11C9 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0000 <-- check if LOS is still free (0), if 1 exits
01EF:11CE 7401 je 000011D1 ($+1) (no jmp)
01EF:11D0 C3 ret
01EF:11D1 FECD dec ch
01EF:11D3 75C7 jne 0000119C ($-39) (up)
01EF:11D5 C3 ret

HORIZONTAL shooting routine:
01EF:11D6 8AD0 mov dl,al
01EF:11D8 8ACD mov cl,ch <-- it moves ch in cl
01EF:11DA 32ED xor ch,ch <-- and puts to 00 ch because uses loop (thus cx) instead of dec ch of vertical routine
01EF:11DC 00169F3F add [3F9F],dl ds:[3F9F]=0001
01EF:11E0 380E9F3F cmp [3F9F],cl ds:[3F9F]=0001
01EF:11E4 7208 jc 000011EE ($+8) (no jmp)
01EF:11E6 280E9F3F sub [3F9F],cl ds:[3F9F]=0001
01EF:11EA 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y
01EF:11EE 003EA53F add [3FA5],bh ds:[3FA5]=0F03 <-- Temp Projectile X
01EF:11F2 C706E9370100 mov word [37E9],0001 ds:[37E9]=0001 <-- set Horizontal flag
01EF:11F8 880EEB37 mov [37EB],cl ds:[37EB]=AA04 <-- distance between projectile and target
01EF:11FC 80F901 cmp cl,01
01EF:11FF 7505 jne 00001206 ($+5) (down)
01EF:1201 80FFFF cmp bh,FF
01EF:1204 7403 je 00001209 ($+3) (no jmp)
01EF:1206 E80B00 call 00001214 ($+b)
01EF:1209 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0001 <-- check if LOS is still free (0), if 1 exits
01EF:120E 7401 je 00001211 ($+1) (no jmp)
01EF:1210 C3 ret
01EF:1211 E2C9 loop 000011DC ($-37)
01EF:1213 C3 ret

Collision check routine on current tile IN WALL/DOORS map (ds:566F):
01EF:1214 53 push bx
01EF:1215 52 push dx
01EF:1216 8A36A63F mov dh,[3FA6] ds:[3FA6]=0839
01EF:121A 8A16A53F mov dl,[3FA5] ds:[3FA5]=3936
01EF:121E E85D4E call 0000607E ($+4e5d)
01EF:1221 80BF6F5600 cmp byte [bx+566F],00 ds:[576C]=8128 <-- Check if tile is 00, if true jumps to the Object map check
01EF:1226 742A je 00001252 ($+2a) (no jmp) at 0B6B:566F is where WALLS/DOORS map is stored
01EF:1228 8A876F56 mov al,[bx+566F] ds:[576C]=8128 <-- mov into al the current TILE (28=is north secret door)
01EF:122C 833EE93701 cmp word [37E9],0001 ds:[37E9]=0001 <-- 1=H, 0=V check for opened door subroutines
01EF:1231 7411 je 00001244 ($+11) (no jmp)

Vertical shoot subroutine that checks for Horizontal walls/doors:
01EF:1233 24AC and al,AC <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1235 0AC0 or al,al AC= 10101100
01EF:1237 7419 je 00001252 ($+19) (no jmp)
01EF:1239 A820 test al,20 <-- if door is Horizontal
01EF:123B 7442 je 0000127F ($+42) (down)
01EF:123D A804 test al,04 <-- if door is opened
01EF:123F 743E je 0000127F ($+3e) (down)
01EF:1241 EB0F jmp short 00001252 ($+f) (down)
01EF:1243 90 nop

Horizontal shoot subroutine that checks for Vertical walls/doors:
01EF:1244 245C and al,5C <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1246 0AC0 or al,al 5C= 01011100
01EF:1248 7408 je 00001252 ($+8) (down)
01EF:124A A810 test al,10 <-- if door is Vertical
01EF:124C 7431 je 0000127F ($+31) (down)
01EF:124E A804 test al,04 <-- if door is opened
01EF:1250 742D je 0000127F ($+2d) (down)

Collision check routine on current tile IN OBJECTS map (ds:586F):
01EF:1252 803EEB3701 cmp byte [37EB],01 ds:[37EB]=6E03 <-- checks if the projectile is about to hit the target
01EF:1257 742B je 00001284 ($+2b) (down)
01EF:1259 80BF6F5800 cmp byte [bx+586F],00 ds:[1576F]=3637 <-- checks if the tile is passable (00)
01EF:125E 740E je 0000126E ($+e) (down)
01EF:1260 8A876F58 mov al,[bx+586F] ds:[1576F]=3637 <-- ds:586F is where OBJECTS map is stored
01EF:1264 BB4649 mov bx,4946 <-- ds:4946 check
01EF:1267 D7 xlat
01EF:1268 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:126B EB17 jmp short 00001284 ($+17) (down)
01EF:126D 90 nop
01EF:126E 8A36A63F mov dh,[3FA6] ds:[3FA6]=004D
01EF:1272 8A16A53F mov dl,[3FA5] ds:[3FA5]=4D4D
01EF:1276 E80E00 call 00001287 ($+e)
01EF:1279 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:127C EB06 jmp short 00001284 ($+6) (down)
01EF:127E 90 nop
01EF:127F C606A83F01 mov byte [3FA8],01 ds:[3FA8]=BA6B <-- sets LOS as blocked (1) and exits
01EF:1284 5A pop dx
01EF:1285 5B pop bx
01EF:1286 C3 ret

Updates with random numbers the first three bytes of heroes' equipment every movement (presumably used as seed for RNG):
01EF:1287 51 push cx
01EF:1288 57 push di
01EF:1289 B90500 mov cx,0005
01EF:128C BF6346 mov di,4663 <-- first byte of Barbarian equipment in memory
01EF:128F 33C0 xor ax,ax
01EF:1291 803D00 cmp byte [di],00 ds:[6CAA]=0000
01EF:1294 740C je 000012A2 ($+c) (down)
01EF:1296 385501 cmp [di+01],dl ds:[6CAB]=0000
01EF:1299 7507 jne 000012A2 ($+7) (no jmp)
01EF:129B 387502 cmp [di+02],dh ds:[6CAC]=0000
01EF:129E 7502 jne 000012A2 ($+2) (no jmp)
01EF:12A0 B001 mov al,01
01EF:12A2 83C71A add di,001A <-- jumps to the following hero's equipment
01EF:12A5 E2EA loop 00001291 ($-16)
01EF:12A7 5F pop di
01EF:12A8 59 pop cx
01EF:12A9 C3 ret

TBD
01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5 <-- ds:5AC5 check
01EF:6088 8B07 mov ax,[bx] ds:[FF00]=3737
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

=== New shooting routine ===
Finally I came up with a proper line of sight mechanism that cover roughly 99% of the "impossible shots". There will always be a particular combiantion of monster-door-hero position that can lead to an "improbable shot", but that's it.

Direction choice routine

1ef:1198: 88 D0 mov al, dl
1ef:119a: 88 CC mov ah, cl
1ef:119c: 05 01 01 add ax, 0x101
1ef:119f: D0 E8 shr al, 1
1ef:11a1: D0 EC shr ah, 1
1ef:11a3: A3 AA 3F mov word ptr [0x3faa], ax <-- save half distance of X and Y

1ef:11a6: 30 C0 xor al, al <-- direction choice routine
1ef:11a8: 3A 0E AB 3F cmp cl, byte ptr [0x3fab] <-- check if X distance reached it's half
1ef:11ac: 74 13 je 0x11c1 <-- if YES reset X half value and change direction
1ef:11ae: 3A 16 AA 3F cmp dl, byte ptr [0x3faa] <-- check if Y distance reached it's half
1ef:11b2: 74 06 je 0x11ba <-- if YES reset Y half value and change direction
1ef:11b4: 38 CA cmp dl, cl
1ef:11b6: 7C 2B jl 0x11e3
1ef:11b8: EB 0C jmp 0x11c6
1ef:11ba: C6 06 AA 3F 00 mov byte ptr [0x3faa], 0
1ef:11bf: EB 22 jmp 0x11e3
1ef:11c1: C6 06 AB 3F 00 mov byte ptr [0x3fab], 0

Vertical
1ef:11c6: 84 D2 test dl, dl <-- vertical routine
1ef:11c8: 74 19 je 0x11e3 <-- if Y distance is zero go to horizontal routine
1ef:11ca: 00 1E A6 3F add byte ptr [0x3fa6], bl
1ef:11ce: B8 00 00 mov ax, 0
1ef:11d1: 80 FB FF cmp bl, 0xff
1ef:11d4: 75 02 jne 0x11d8
1ef:11d6: B4 1A mov ah, 0x1a
1ef:11d8: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11db: FE CA dec dl
1ef:11dd: 88 16 EB 37 mov byte ptr [0x37eb], dl
1ef:11e1: EB 1B jmp 0x11fe

Horizontal
1ef:11e3: 84 C9 test cl, cl <-- horizontal routine
1ef:11e5: 74 DF je 0x11c6 <-- if X distance is zero go to vertical routine
1ef:11e7: 00 3E A5 3F add byte ptr [0x3fa5], bh
1ef:11eb: B8 01 00 mov ax, 1
1ef:11ee: 80 FF FF cmp bh, 0xff
1ef:11f1: 75 02 jne 0x11f5
1ef:11f3: B4 01 mov ah, 1
1ef:11f5: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11f8: FE C9 dec cl
1ef:11fa: 88 0E EB 37 mov byte ptr [0x37eb], cl

1ef:11fe: E8 13 00 call 0x1214 <-- calls wall/object collision check routine
1ef:1201: 80 3E A8 3F 00 cmp byte ptr [0x3fa8], 0 <-- collision flag
1ef:1206: 74 01 je 0x1209
1ef:1208: C3 ret <-- else object or wall was HIT
1ef:1209: 88 C8 mov al, cl
1ef:120b: 00 D0 add al, dl <-- if X+Y distance is not zero
1ef:120d: 75 97 jne 0x11a6 <-- back to direction choice routine
1ef:120f: C3 ret <-- else target was HIT
1ef:1210: 90 nop
1ef:1211: 90 nop
1ef:1212: 90 nop
1ef:1213: 90 nop

Wall/object collision check routine

1ef:1214: 53 push bx
1ef:1215: 52 push dx
1ef:1216: 8A 36 A6 3F mov dh, byte ptr [0x3fa6]
1ef:121a: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:121e: E8 5D 4E call 0x607e
1ef:1221: A0 EA 37 mov al, byte ptr [0x37ea]
1ef:1224: 30 E4 xor ah, ah
1ef:1226: 01 C3 add bx, ax
1ef:1228: 8A 87 6F 56 mov al, byte ptr [bx + 0x566f] <-- checks if the tile is free (00) or occupied (30=rock)
1ef:122c: 3C 00 cmp al, 0
1ef:122e: 74 21 je 0x1251 <-- if occupied jump to specific object check
1ef:1230: 80 3E E9 37 01 cmp byte ptr [0x37e9], 1
1ef:1235: 74 0C je 0x1243
1ef:1237: A8 20 test al, 0x20 <-- Horizontal Door check
1ef:1239: 75 12 jne 0x124d
1ef:123b: A8 80 test al, 0x80 <-- Horizontal Wall check
1ef:123d: 74 12 je 0x1251
1ef:123f: EB 3E jmp 0x127f
1ef:1241: 90 nop
1ef:1242: 90 nop

1ef:1243: A8 10 test al, 0x10 <-- Vertical Door check
1ef:1245: 75 06 jne 0x124d
1ef:1247: A8 40 test al, 0x40 <-- Vertical Wall check
1ef:1249: 74 06 je 0x1251
1ef:124b: EB 32 jmp 0x127f

1ef:124d: A8 04 test al, 4 <-- opened door check
1ef:124f: 74 2E je 0x127f

1ef:1251: 8A 87 6F 58 mov al, byte ptr [bx + 0x586f] <-- specific object check
1ef:1255: BB 86 49 mov bx, 0x4986 <-- bitmask table where object properties are stored
1ef:1258: 51 push cx
1ef:1259: 88 C1 mov cl, al
1ef:125b: C0 E9 03 shr cl, 3
1ef:125e: 01 CB add bx, cx
1ef:1260: 59 pop cx
1ef:1261: 24 07 and al, 7
1ef:1263: 0F A3 07 bt word ptr [bx], ax <-- verify if the object is passable (ie. table) or not (ie. fireplace)
1ef:1266: 72 17 jb 0x127f
1ef:1268: 80 3E EB 37 00 cmp byte ptr [0x37eb], 0 <-- checks if the projectile hit the target
1ef:126d: 74 15 je 0x1284
1ef:126f: 8A 36 A6 3F mov dh, byte ptr [0x3fa6] <-- update projectile's X and Y
1ef:1273: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:1277: E8 0D 00 call 0x1287
1ef:127a: A2 A8 3F mov byte ptr [0x3fa8], al
1ef:127d: EB 05 jmp 0x1284
1ef:127f: C6 06 A8 3F 01 mov byte ptr [0x3fa8], 1
1ef:1284: 5A pop dx
1ef:1285: 5B pop bx
1ef:1286: C3 ret

== Monster attack routine ==
This first block defines the target priority: barbarian - dwarf - elf - wizard - ragnar 
It is possible to revers it forcing the monster to chose the weaker hero first reversing the logic by starting from ragnar profile and then jump backward subtracting 1A. 
See [[#Heroes' default profiles|Heroes' default profiles]] for reference.

01EF:2257 BE6346 mov si,4663 <-- starting profile offset 4663=barbarian
01EF:225A B90500 mov cx,0005 <-- loop repeats 5 times
01EF:225D 51 push cx
01EF:225E 8936D63F mov [3FD6],si ds:[3FD6]=46B1
01EF:2262 8A4419 mov al,[si+19] ds:[46CA]=0003 <-- jumps to hero's ID position
01EF:2265 A2BC3F mov [3FBC],al ds:[3FBC]=0003
01EF:2268 E85800 call 000022C3 ($+58)
01EF:226B 59 pop cx
01EF:226C 8B36D63F mov si,[3FD6] ds:[3FD6]=46B1
01EF:2270 83C61A add si,001A <-- jumps to the next profile
01EF:2273 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0102
01EF:2278 7503 jne 0000227D ($+3) (down)
01EF:227A E95102 jmp 000024CE ($+251) (down)
01EF:227D 803EA83F03 cmp byte [3FA8],03 ds:[3FA8]=0102
01EF:2282 7503 jne 00002287 ($+3) (down)
01EF:2284 E94702 jmp 000024CE ($+247) (down)
01EF:2287 E2D4 loop 0000225D ($-2c)
01EF:2289 C3 ret

01EF:22C3 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000
01EF:22C8 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:22CB 7503 jne 000022D0 ($+3) (no jmp)
01EF:22CD E98101 jmp 00002451 ($+181) (down)
01EF:22D0 8A4403 mov al,[si+03] ds:[4666]=C726 <-- hero's room
01EF:22D3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room
01EF:22D6 7403 je 000022DB ($+3) (down)
01EF:22D8 E97601 jmp 00002451 ($+176) (down)
01EF:22DB F6441801 test byte [si+18],01 ds:[467B]=0000
01EF:22DF 7403 je 000022E4 ($+3) (down)
01EF:22E1 E96D01 jmp 00002451 ($+16d) (down)
01EF:22E4 8B5401 mov dx,[si+01] ds:[4664]=0D06
01EF:22E7 52 push dx
01EF:22E8 57 push di
01EF:22E9 E864F7 call 00001A50 ($-89c)
01EF:22EC 5F pop di
01EF:22ED 57 push di
01EF:22EE E84E02 call 0000253F ($+24e)
01EF:22F1 E8F03D call 000060E4 ($+3df0)
01EF:22F4 B9F401 mov cx,01F4
01EF:22F7 E88D23 call 00004687 ($+238d)
01EF:22FA 5F pop di
01EF:22FB 5A pop dx
01EF:22FC 8816A53F mov [3FA5],dl ds:[3FA5]=1106
01EF:2300 8836A63F mov [3FA6],dh ds:[3FA6]=0411
01EF:2304 BBA240 mov bx,40A2
01EF:2307 891ECA40 mov [40CA],bx ds:[40CA]=40A2
01EF:230B E8703D call 0000607E ($+3d70) <-- if jumped the monster doesn't attack when in contact

01EF:230E 81C36F54 add bx,546F
01EF:2312 8A07 mov al,[bx] ds:[3F28]=4040
01EF:2314 243F and al,3F
01EF:2316 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check. if removed the monster attack through walls and doors
01EF:2319 7403 je 0000231E ($+3) (down)
01EF:231B E93301 jmp 00002451 ($+133) (down)
01EF:231E B501 mov ch,01
01EF:2320 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:2323 2A4501 sub al,[di+01] ds:[4DB9]=0F06
01EF:2326 7504 jne 0000232C ($+4) (no jmp)
01EF:2328 B500 mov ch,00
01EF:232A EB08 jmp short 00002334 ($+8) (down)
01EF:232C 3C80 cmp al,80
01EF:232E 7204 jc 00002334 ($+4) (no jmp)
01EF:2330 F6D8 neg al
01EF:2332 B5FF mov ch,FF
01EF:2334 A2A13F mov [3FA1],al ds:[3FA1]=0100
01EF:2337 882EA33F mov [3FA3],ch ds:[3FA3]=0100
01EF:233B B501 mov ch,01
01EF:233D A0A63F mov al,[3FA6] ds:[3FA6]=0411
01EF:2340 2A4502 sub al,[di+02] ds:[4DBA]=260F
01EF:2343 7504 jne 00002349 ($+4) (no jmp)
01EF:2345 B500 mov ch,00
01EF:2347 EB08 jmp short 00002351 ($+8) (down)
01EF:2349 3C80 cmp al,80
01EF:234B 7204 jc 00002351 ($+4) (no jmp)
01EF:234D F6D8 neg al
01EF:234F B5FF mov ch,FF
01EF:2351 A2A23F mov [3FA2],al ds:[3FA2]=0001
01EF:2354 882EA43F mov [3FA4],ch ds:[3FA4]=0601
01EF:2358 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:235B 89169F3F mov [3F9F],dx ds:[3F9F]=1006
01EF:235F C606A93F00 mov byte [3FA9],00 ds:[3FA9]=0000
01EF:2364 8A5D09 mov bl,[di+09] ds:[4DC1]=8100
01EF:2367 02DB add bl,bl
01EF:2369 02DB add bl,bl
01EF:236B 025D09 add bl,[di+09] ds:[4DC1]=8100
01EF:236E 32FF xor bh,bh
01EF:2370 8A870648 mov al,[bx+4806] [illegal]
01EF:2374 A29C3F mov [3F9C],al ds:[3F9C]=0003
01EF:2377 8A0EA23F mov cl,[3FA2] ds:[3FA2]=0001
01EF:237B A0A13F mov al,[3FA1] ds:[3FA1]=0100
01EF:237E 3AC1 cmp al,cl
01EF:2380 7203 jc 00002385 ($+3) (no jmp)
01EF:2382 EB6A jmp short 000023EE ($+6a) (down)
01EF:2384 90 nop
01EF:2385 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2389 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:238D 7425 je 000023B4 ($+25) (down)
01EF:238F A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:2392 0AC0 or al,al
01EF:2394 741E je 000023B4 ($+1e) (down)
01EF:2396 02F0 add dh,al
01EF:2398 E8DD00 call 00002478 ($+dd)
01EF:239B 3CFF cmp al,FF
01EF:239D 7503 jne 000023A2 ($+3) (no jmp)
01EF:239F E9B500 jmp 00002457 ($+b5) (down)
01EF:23A2 0AC0 or al,al
01EF:23A4 750E jne 000023B4 ($+e) (no jmp)
01EF:23A6 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:23AA E8B000 call 0000245D ($+b0)
01EF:23AD 7303 jnc 000023B2 ($+3) (down)
01EF:23AF E99900 jmp 0000244B ($+99) (down)
01EF:23B2 EBD1 jmp short 00002385 ($-2f) (up)
01EF:23B4 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23B8 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23BB 3AC2 cmp al,dl
01EF:23BD 7503 jne 000023C2 ($+3) (no jmp)
01EF:23BF E98F00 jmp 00002451 ($+8f) (down)
01EF:23C2 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23C5 0AC0 or al,al
01EF:23C7 7503 jne 000023CC ($+3) (no jmp)
01EF:23C9 E98500 jmp 00002451 ($+85) (down)
01EF:23CC 02D0 add dl,al
01EF:23CE E8A700 call 00002478 ($+a7)
01EF:23D1 3CFF cmp al,FF
01EF:23D3 7503 jne 000023D8 ($+3) (no jmp)
01EF:23D5 E97F00 jmp 00002457 ($+7f) (down)
01EF:23D8 0AC0 or al,al
01EF:23DA 7403 je 000023DF ($+3) (down)
01EF:23DC EB73 jmp short 00002451 ($+73) (down)
01EF:23DE 90 nop
01EF:23DF A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23E2 32E4 xor ah,ah
01EF:23E4 E87600 call 0000245D ($+76)
01EF:23E7 7303 jnc 000023EC ($+3) (down)
01EF:23E9 EB60 jmp short 0000244B ($+60) (down)
01EF:23EB 90 nop
01EF:23EC EB97 jmp short 00002385 ($-69) (up)
01EF:23EE 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23F2 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23F5 3AC2 cmp al,dl
01EF:23F7 7426 je 0000241F ($+26) (down)
01EF:23F9 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23FC 0AC0 or al,al
01EF:23FE 741F je 0000241F ($+1f) (down)
01EF:2400 02D0 add dl,al
01EF:2402 E87300 call 00002478 ($+73)
01EF:2405 3CFF cmp al,FF
01EF:2407 7503 jne 0000240C ($+3) (no jmp)
01EF:2409 EB4C jmp short 00002457 ($+4c) (down)
01EF:240B 90 nop
01EF:240C 0AC0 or al,al
01EF:240E 750F jne 0000241F ($+f) (no jmp)
01EF:2410 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:2413 32E4 xor ah,ah
01EF:2415 E84500 call 0000245D ($+45)
01EF:2418 7303 jnc 0000241D ($+3) (down)
01EF:241A EB2F jmp short 0000244B ($+2f) (down)
01EF:241C 90 nop
01EF:241D EBCF jmp short 000023EE ($-31) (up)
01EF:241F 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2423 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:2427 7428 je 00002451 ($+28) (down)
01EF:2429 A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:242C 0AC0 or al,al
01EF:242E 7421 je 00002451 ($+21) (down)
01EF:2430 02F0 add dh,al
01EF:2432 E84300 call 00002478 ($+43)
01EF:2435 3CFF cmp al,FF
01EF:2437 741E je 00002457 ($+1e) (down)
01EF:2439 0AC0 or al,al
01EF:243B 7514 jne 00002451 ($+14) (no jmp)
01EF:243D 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:2441 E81900 call 0000245D ($+19)
01EF:2444 7303 jnc 00002449 ($+3) (down)
01EF:2446 EB03 jmp short 0000244B ($+3) (down)
01EF:2448 90 nop
01EF:2449 EBA3 jmp short 000023EE ($-5d) (up)
01EF:244B C606A83F01 mov byte [3FA8],01 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2450 C3 ret
01EF:2451 C606A83F02 mov byte [3FA8],02 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2456 C3 ret
01EF:2457 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000 <-- hero is reachable
01EF:245C C3 ret

01EF:245D 89169F3F mov [3F9F],dx ds:[3F9F]=1006 <-- called only when the monster needs to move
01EF:2461 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:2465 8807 mov [bx],al ds:[3F28]=6148
01EF:2467 886701 mov [bx+01],ah ds:[3F29]=0061
01EF:246A 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:246F FE06A93F inc byte [3FA9] ds:[3FA9]=0000
01EF:2473 FE0E9C3F dec byte [3F9C] ds:[3F9C]=0003
01EF:2477 C3 ret

01EF:2478 A0BC3F mov al,[3FBC] ds:[3FBC]=0000
01EF:247B E80139 call 00005D7F ($+3901)
01EF:247E 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:2481 7408 je 0000248B ($+8) (down)
01EF:2483 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:2486 7503 jne 0000248B ($+3) (no jmp)
01EF:2488 B0FF mov al,FF
01EF:248A C3 ret

01EF:248B B500 mov ch,00
01EF:248D 382EBC3F cmp [3FBC],ch ds:[3FBC]=0000
01EF:2491 7412 je 000024A5 ($+12) (down)
01EF:2493 8AC5 mov al,ch
01EF:2495 E8E738 call 00005D7F ($+38e7)
01EF:2498 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:249B 7408 je 000024A5 ($+8) (down)
01EF:249D 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:24A0 7503 jne 000024A5 ($+3) (no jmp)
01EF:24A2 B001 mov al,01
01EF:24A4 C3 ret
01EF:24A5 FEC5 inc ch
01EF:24A7 80FD04 cmp ch,04
01EF:24AA 75E1 jne 0000248D ($-1f) (no jmp)
01EF:24AC 52 push dx
01EF:24AD E8CE3B call 0000607E ($+3bce)
01EF:24B0 5A pop dx
01EF:24B1 81C36F58 add bx,586F
01EF:24B5 803F00 cmp byte [bx],00 ds:[3F28]=6148
01EF:24B8 7403 je 000024BD ($+3) (down)
01EF:24BA B002 mov al,02
01EF:24BC C3 ret
01EF:24BD 8A8700FC mov al,[bx-0400] ds:[3B28]=E04B
01EF:24C1 243F and al,3F
01EF:24C3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check.
01EF:24C6 7503 jne 000024CB ($+3) (no jmp)
01EF:24C8 32C0 xor al,al
01EF:24CA C3 ret
01EF:24CB B003 mov al,03
01EF:24CD C3 ret

01EF:24CE 893ED43F mov [3FD4],di ds:[3FD4]=4DB8
01EF:24D2 8A0EA93F mov cl,[3FA9] ds:[3FA9]=0001
01EF:24D6 0AC9 or cl,cl
01EF:24D8 7455 je 0000252F ($+55) (down)
01EF:24DA 32ED xor ch,ch
01EF:24DC BBA240 mov bx,40A2
01EF:24DF 891ECA40 mov [40CA],bx ds:[40CA]=40A4
01EF:24E3 51 push cx
01EF:24E4 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:24E8 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24EB E8903B call 0000607E ($+3b90)
01EF:24EE 8A8F6F58 mov cl,[bx+586F] ds:[59FB]=0000
01EF:24F2 C6876F5800 mov byte [bx+586F],00 ds:[59FB]=0000
01EF:24F7 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:24FB 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24FE 0217 add dl,[bx] ds:[018C]=1149
01EF:2500 027701 add dh,[bx+01] ds:[018D]=0611
01EF:2503 895501 mov [di+01],dx ds:[4DB9]=0F06
01EF:2506 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:250B E8703B call 0000607E ($+3b70)
01EF:250E 888F6F58 mov [bx+586F],cl ds:[AE50]=0A16
01EF:2512 81C36F54 add bx,546F
01EF:2516 895D04 mov [di+04],bx ds:[4DBC]=55E1
01EF:2519 E834F5 call 00001A50 ($-acc)
01EF:251C 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:2520 E81C00 call 0000253F ($+1c)
01EF:2523 E8BE3B call 000060E4 ($+3bbe)
01EF:2526 B9F401 mov cx,01F4
01EF:2529 E85B21 call 00004687 ($+215b) <-- 500.000 nop cycles, to slow down monster's animation
01EF:252C 59 pop cx
01EF:252D E2B4 loop 000024E3 ($-4c)
01EF:252F 51 push cx
01EF:2530 B93200 mov cx,0032
01EF:2533 E86A11 call 000036A0 ($+116a) <-- more nops
01EF:2536 E2FB loop 00002533 ($-5)
01EF:2538 59 pop cx
01EF:2539 E853F8 call 00001D8F ($-7ad) <-- here the monster attacks whein in contact with the hero
01EF:253C E99131 jmp 000056D0 ($+3191) (down)
01EF:253F 8A4502 mov al,[di+02] ds:[EF42]=3736
01EF:2542 32E4 xor ah,ah
01EF:2544 BA000A mov dx,0A00
01EF:2547 F7E2 mul dx
01EF:2549 8BD8 mov bx,ax

01EF:4687 51 push cx
01EF:4688 E820EF call 000035AB ($-10e0)
01EF:468B 59 pop cx
01EF:468C E2F9 loop 00004687 ($-7)
01EF:468E C3 ret

01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5
01EF:6088 8B07 mov ax,[bx] ds:[0130]=0101
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

== Hero's pathfinding routine ==
The pathfinder algorithm the programmer chose was a simple variation of the A*, and is perfectly implemented. You can click on any tiles on the screen even on the invisible ones outside the room. If there is a clean path, the hero will reach that tile.

01EF:6449 E8E2D4 call 0000392E ($-2b1e)
01EF:644C E85800 call 000064A7 ($+58)
01EF:644F 833CFF cmp word [si],FFFF ds:[3911]=0000
01EF:6452 7503 jne 00006457 ($+3) (down)
01EF:6454 E95F03 jmp 000067B6 ($+35f) (down)

01EF:67B6 8B16E747 mov dx,[47E7] ds:[47E7]=0087
01EF:67BA 8B2EE947 mov bp,[47E9] ds:[47E9]=0097
01EF:67BE BB2D40 mov bx,402D
01EF:67C1 BE1941 mov si,4119
01EF:67C4 B93400 mov cx,0034
01EF:67C7 51 push cx
01EF:67C8 8B4402 mov ax,[si+02] ds:[491E]=01C0
01EF:67CB 051800 add ax,0018
01EF:67CE 2BC2 sub ax,dx
01EF:67D0 7302 jnc 000067D4 ($+2) (down)
01EF:67D0 7302 jnc 000067D4 ($+2) (no jmp)
01EF:67D2 F7D8 neg ax
01EF:67D4 D1E8 shr ax,1
01EF:67D6 8B0C mov cx,[si] ds:[4119]=0044
01EF:67D8 83C108 add cx,0008
01EF:67DB 2BCD sub cx,bp
01EF:67DD 7302 jnc 000067E1 ($+2) (no jmp)
01EF:67DF F7D9 neg cx
01EF:67E1 03C1 add ax,cx
01EF:67E3 D1E8 shr ax,1
01EF:67E5 8907 mov [bx],ax ds:[402D]=0000
01EF:67E7 83C302 add bx,0002
01EF:67EA 83C604 add si,0004
01EF:67ED 59 pop cx
01EF:67EE E2D7 loop 000067C7 ($-29)
01EF:67F0 BB2D40 mov bx,402D
01EF:67F3 B8FFFF mov ax,FFFF
01EF:67F6 B93400 mov cx,0034
01EF:67F9 3B07 cmp ax,[bx] ds:[402D]=0000
01EF:67FB 7204 jc 00006801 ($+4) (down)
01EF:67FD 8B07 mov ax,[bx] ds:[4095]=0000
01EF:67FF 8BD1 mov dx,cx
01EF:6801 83C302 add bx,0002
01EF:6804 E2F3 loop 000067F9 ($-d)
01EF:6806 3D0800 cmp ax,0008
01EF:6809 7201 jc 0000680C ($+1) (no jmp)
01EF:680B C3 ret
01EF:680C BB3400 mov bx,0034
01EF:680F 2BDA sub bx,dx
01EF:6811 83FB2D cmp bx,002D
01EF:6814 720B jc 00006821 ($+b) (down)
01EF:6816 83EB2D sub bx,002D
01EF:6819 D1E3 shl bx,1
01EF:681B 8B8F034A mov cx,[bx+4A03] ds:[4A14]=0E09
01EF:681F EB06 jmp short 00006827 ($+6) (down)
01EF:6821 8A8FD649 mov cl,[bx+49D6] ds:[49E7]=1E37
01EF:6825 32ED xor ch,ch
01EF:6827 A1E43F mov ax,[3FE4] ds:[3FE4]=5574
01EF:682A 03C1 add ax,cx
01EF:682C 2D6F54 sub ax,546F
01EF:682F 8BD8 mov bx,ax
01EF:6831 81C36F56 add bx,566F
01EF:6835 3B1E110E cmp bx,[0E11] ds:[0E11]=FFFF
01EF:6839 7501 jne 0000683C ($+1) (down)
01EF:683B C3 ret
01EF:683C 8BD8 mov bx,ax
01EF:683E B500 mov ch,00
01EF:6840 3D1A00 cmp ax,001A
01EF:6843 7207 jc 0000684C ($+7) (down)
01EF:6845 2D1A00 sub ax,001A
01EF:6848 FEC5 inc ch
01EF:684A EBF4 jmp short 00006840 ($-c) (up)
01EF:684C 8AC8 mov cl,al
01EF:684E 8A876F54 mov al,[bx+546F] ds:[AC1A]=0200
01EF:6852 243F and al,3F
01EF:6854 7501 jne 00006857 ($+1) (down)
01EF:6856 C3 ret
01EF:6857 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:685C 7503 jne 00006861 ($+3) (down)
01EF:685E EB11 jmp short 00006871 ($+11) (down)
01EF:6860 90 nop
01EF:6861 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:6866 7501 jne 00006869 ($+1) (down)
01EF:6868 C3 ret
01EF:6869 80BF6F5840 cmp byte [bx+586F],40 ds:[B01A]=0101
01EF:686E 7201 jc 00006871 ($+1) (down)
01EF:6870 C3 ret
01EF:6871 8BD1 mov dx,cx
01EF:6873 51 push cx
01EF:6874 E810AA call 00001287 ($-55f0)
01EF:6877 59 pop cx
01EF:6878 0AC0 or al,al
01EF:687A 7401 je 0000687D ($+1) (down)
01EF:687C C3 ret
01EF:687D 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:6881 880EF03F mov [3FF0],cl ds:[3FF0]=0000
01EF:6885 882EF13F mov [3FF1],ch ds:[3FF1]=0000
01EF:6889 8A4501 mov al,[di+01] ds:[3913]=0000
01EF:688C A2EE3F mov [3FEE],al ds:[3FEE]=0000
01EF:688F A2F53F mov [3FF5],al ds:[3FF5]=0C02
01EF:6892 8A4502 mov al,[di+02] ds:[4665]=200C
01EF:6895 A2EF3F mov [3FEF],al ds:[3FEF]=040C
01EF:6898 A2F63F mov [3FF6],al ds:[3FF6]=000C
01EF:689B E80EC5 call 00002DAC ($-3af2)
01EF:689E 803EC83F00 cmp byte [3FC8],00 ds:[3FC8]=0000
01EF:68A3 7501 jne 000068A6 ($+1) (no jmp)
01EF:68A5 C3 ret
01EF:68A6 BB1340 mov bx,4013
01EF:68A9 891ECC3F mov [3FCC],bx ds:[3FCC]=0000
01EF:68AD C3 ret

01EF:2DAC A0EE3F mov al,[3FEE] ds:[3FEE]=0000
01EF:2DAF 2A06F03F sub al,[3FF0] ds:[3FF0]=1515
01EF:2DB3 7902 jns 00002DB7 ($+2) (no jmp)
01EF:2DB5 F6D8 neg al
01EF:2DB7 8A26EF3F mov ah,[3FEF] ds:[3FEF]=1500
01EF:2DBB 2A26F13F sub ah,[3FF1] ds:[3FF1]=3915
01EF:2DBF 7902 jns 00002DC3 ($+2) (no jmp)
01EF:2DC1 F6DC neg ah
01EF:2DC3 02C4 add al,ah
01EF:2DC5 A2E937 mov [37E9],al ds:[37E9]=3737
01EF:2DC8 A09C3F mov al,[3F9C] ds:[3F9C]=3A3A
01EF:2DCB 32E4 xor ah,ah
01EF:2DCD A3F93F mov [3FF9],ax ds:[3FF9]=3F3E
01EF:2DD0 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=3A3A
01EF:2DD5 C606C83F00 mov byte [3FC8],00 ds:[3FC8]=1515
01EF:2DDA C706F33F0000 mov word [3FF3],0000 ds:[3FF3]=1515
01EF:2DE0 C706CC3F0000 mov word [3FCC],0000 ds:[3FCC]=3B3C

Starting from memory location 0B6B:0A0E the subsequent 512 bytes are set to 1A1A x100h (256 times) by this function:
01EF:2DE6 BF0E0A mov di,0A0E
01EF:2DE9 B90001 mov cx,0100
01EF:2DEC 50 push ax
01EF:2DED B86B0B mov ax,0B6B
01EF:2DF0 8EC0 mov es,ax
01EF:2DF2 58 pop ax
01EF:2DF3 B81A1A mov ax,1A1A
01EF:2DF6 F3AB repe stosw

The code then creates a map with all possible paths of the hero:
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 07 08 09 -- 09 08
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 06 09 0A 09 08 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 05 0A 0B 0A 09 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 04 0B -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 02 01 02 01 02 03 04
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 02 -- -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 03 -- -- -- -- 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 04 -- -- -- -- 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

01EF:2DF8 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:2DFC EB74 jmp short 00002E72 ($+74) (down)
01EF:2DFE 90 nop
01EF:2DFF A0F23F mov al,[3FF2] ds:[3FF2]=0000
01EF:2E02 8B1EF33F mov bx,[3FF3] ds:[3FF3]=0000
01EF:2E06 8887FB3F mov [bx+3FFB],al ds:[411D]=0050
01EF:2E0A 43 inc bx
01EF:2E0B 3B1EF93F cmp bx,[3FF9] ds:[3FF9]=0009
01EF:2E0F 7601 jbe 00002E12 ($+1) (no jmp)
01EF:2E11 C3 ret
01EF:2E12 891EF33F mov [3FF3],bx ds:[3FF3]=0001
01EF:2E16 8A26F93F mov ah,[3FF9] ds:[3FF9]=0009
01EF:2E1A 2AE3 sub ah,bl
01EF:2E1C A0F03F mov al,[3FF0] ds:[3FF0]=0B04
01EF:2E1F 2A06F53F sub al,[3FF5] ds:[3FF5]=0B04
01EF:2E23 7902 jns 00002E27 ($+2) (down)
01EF:2E25 F6D8 neg al
01EF:2E27 3AC4 cmp al,ah
01EF:2E29 7603 jbe 00002E2E ($+3) (down)
01EF:2E2B E98400 jmp 00002EB2 ($+84) (down)
01EF:2E2E A0F13F mov al,[3FF1] ds:[3FF1]=000B
01EF:2E31 2A06F63F sub al,[3FF6] ds:[3FF6]=000B
01EF:2E35 7902 jns 00002E39 ($+2) (down)
01EF:2E37 F6D8 neg al
01EF:2E39 3AC4 cmp al,ah
01EF:2E3B 7775 ja 00002EB2 ($+75) (no jmp)
01EF:2E3D E87700 call 00002EB7 ($+77)
01EF:2E40 7270 jc 00002EB2 ($+70) (no jmp)
01EF:2E42 3E885E00 mov ds:[bp],bl ds:[007A]=0002
01EF:2E46 A0F53F mov al,[3FF5] ds:[3FF5]=0B04
01EF:2E49 3A06F03F cmp al,[3FF0] ds:[3FF0]=0B04
01EF:2E4D 7523 jne 00002E72 ($+23) (no jmp)
01EF:2E4F A0F63F mov al,[3FF6] ds:[3FF6]=000B
01EF:2E52 3A06F13F cmp al,[3FF1] ds:[3FF1]=000B
01EF:2E56 751A jne 00002E72 ($+1a) (no jmp)
01EF:2E58 881EC83F mov [3FC8],bl ds:[3FC8]=0000
01EF:2E5C 57 push di
01EF:2E5D BF1340 mov di,4013
01EF:2E60 BEFB3F mov si,3FFB
01EF:2E63 8A0EC83F mov cl,[3FC8] ds:[3FC8]=0000
01EF:2E67 32ED xor ch,ch
01EF:2E69 890EF93F mov [3FF9],cx ds:[3FF9]=0001
01EF:2E6D F3A4 repe movsb
01EF:2E6F 5F pop di
01EF:2E70 EB40 jmp short 00002EB2 ($+40) (down)
01EF:2E72 C606F23F00 mov byte [3FF2],00 ds:[3FF2]=0100
01EF:2E77 FE0EF63F dec byte [3FF6] ds:[3FF6]=000B

part of 2DF8 routine this writes the temporary math:
01EF:2E7B E881FF call 00002DFF ($-7f) <-- call itself again
01EF:2E7E FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E82 C606F23F01 mov byte [3FF2],01 ds:[3FF2]=0000
01EF:2E87 FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2E8B E871FF call 00002DFF ($-8f) <-- call itself again
01EF:2E8E FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2E92 C606F23F02 mov byte [3FF2],02 ds:[3FF2]=0000
01EF:2E97 FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E9B E861FF call 00002DFF ($-9f) <-- call itself again
01EF:2E9E FE0EF63F dec byte [3FF6] ds:[3FF6]=000B
01EF:2EA2 C606F23F03 mov byte [3FF2],03 ds:[3FF2]=0000
01EF:2EA7 FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2EAB E851FF call 00002DFF ($-af) <-- call itself again
01EF:2EAE FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2EB2 FF0EF33F dec word [3FF3] ds:[3FF3]=0000
01EF:2EB6 C3 ret

== Notable Memory locations for hero's and monster's movement ==

3F92 = CURRENT QUEST
3F93 = Hero's current tile (see tilemap below)
3F94 = ACTIVE HERO'S ROOM

3F99 =
3F9A = END TURN FLAG
3F9B = action performed?
3F9C = REMAINING STEPS
3F9D =
3F9E =
3F9F = MONSTER'S X position
3FA0 = MONSTER'S Y position
3FA1 = Horizontal distance Monster-hero
3FA2 = Vertical distance Monster-hero
3FA3-3FA4 (word) = next monster's step (see 40A2)
3FA5 = HERO'S X position
3FA6 = HERO'S Y position
3FA7 = Active hero
3FA8 = LOS 00=start 01=blocked 02=free
3FA9 = steps to take to reach the hero?
3FB5 = Target Hero ID (FF=Monster)
3FB9 = current total defense dice of the active hero during DEFENSE
3FC5 = Quest specific hero counter (usually identical to 3FC6) modified by 26E8 call
3FC5 = hero counter (complementar) 1111 = 0F = all heroes OUT modified by 26E2 call

3FD0 = WORD map ID (temporary for the quest) offset of ATTACKED monster in map memory (586F)
3FD2 = BYTE rolled skulls (by monsters or heroes)
3FD3 = BYTE rolled shields (by monsters or heroes)
3FD4 = WORD monster's profile location (during attacks)
3FD6 = WORD hero's profile location (during attacks)

3FE7 = QUEST specific OBJECTIVE (1=ACCOMPLISHED)

Memory locations for hero's movement (pathfindig)
3FEE = HERO'S X STARTING POSITION
3FEF = HERO'S Y STARTING POSITION
3FF0 = mouse click X position (X stop)
3FF1 = mouse click Y position (Y stop)
3FF2 = 03
3FF3 = FF
3FF4 = FF
3FF5 = HERO'S X POSITION (copy)
3FF6 = HERO'S Y POSITION (copy)
3FF9 = rolled movement
3FFB - 4012 = math locations that varies among 00,01,02,03, at the end every byte is set to 03 (bytes here are never cleared)
4013 -> locations with definitive hero's path (bytes here are never cleared)

hero's directional movement values:
00 = up
01 = right
02 = down
03 = left
The hero's moving animation is then delegated to the main loop routines that starts reading from 4013 till [3FF9].

4097 = infinite actions if set to a number different from 00
402C = Wand of recall extra action 00=no 01=yes
4BBC = location where TRAP special event number is put upon entering the room (FF=Searched)

40A2 = here is stored the path the monster will follow by 607E (?) call. A sequence of words that specify directional movement
00 01 = down
00 FF = up
FF 00 = left
01 00 = right
40CA = last location of the path to follow. (A640 = 2 moves)

Screen tiles layout. The tile under the current hero is saved in [3F93]
/\
/00\
/\ /\
/01\/02\
/\ /\ /\
/03\/04\/05\
/\ /\ /\ /\
/06\/07\/08\/09\
/\ /\ /\ /\ /\
/0A\/0B\/0C\/0D\/0E\
\ /\ /\ /\ /\ /\
\/0F\/10\/11\/12\/13\
\ /\ /\ /\ /\ /
\/14\/15\/16\/17\/
\ /\ /\ /\ /
\/18\/19\/1A\/
\ /\ /\ /
\/1B\/1C\/
\ /\ /
\/1D\/
\ /
\/

The hero's moving animation is delegated to the in-game main loop routines.

= [DATA SEGMENT] Main Pointers =

The file inside the exe that represents the Data Segment (every byte that is not strictly CODE) starts at offset '''0x9BE0'''. Every pointer is relative to this address. 

== Heroes' default profiles ==

offset mem pointer BP MP EQ AD DD ID
0xE243 0B6B:4663 00 00 00 00 00 00 08 02 1D 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00 00 00 Barbarian
0xE25D 0B6B:467D 00 00 00 00 00 00 07 03 32 00 00 00 00 00 00 80 00 00 00 00 02 02 00 00 00 01 Dwarf
0xE277 0B6B:4697 00 00 00 00 00 00 06 04 35 00 00 00 00 00 00 00 00 00 00 00 02 02 00 00 00 02 Elf
0xE291 0B6B:46B1 00 00 00 00 00 00 04 06 4A 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 03 Wizard
0xE2AB 0B6B:46CB 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 04 Ragnar

The byte positions are the same of [[HeroQuest Savegame Format]]. Load and save operations read and write at these addreses.

When initializing the heroes the default values are resetted by the function 01EF:78D3 that resets all values to zero and Body and Mind points to default
0x00DF74 0B6B:4394 08 07 06 04 02 Default Body point values (last one is Ragnar's)
0x0148FB 0B6B:AD1B 02 03 04 06 00 Default Mind point values

Character initialization code:
01EF:78D3 8A1E9E40 mov bl,[409E] ds:[409E]=0002
01EF:78D7 B700 mov bh,00
01EF:78D9 8B879443 mov ax,[bx+4394] ds:[4396]=0406
01EF:78DD 884406 mov [si+06],al ds:[469D]=0406 <-- sets default body points
01EF:78E0 8A871BAD mov al,[bx-52E5] ds:[FFFFAD1D]=EC8B
01EF:78E4 884407 mov [si+07],al ds:[469E]=3804 <-- sets default mind points
01EF:78E7 C6440E00 mov byte [si+0E],00 ds:[46A5]=0000 <-- resets Owned weapon
01EF:78EB C6440F00 mov byte [si+0F],00 ds:[46A6]=0000 <-- resets Owned armour
01EF:78EF C6440D00 mov byte [si+0D],00 ds:[46A4]=0000 <-- resets Owned special items
01EF:78F3 C744090000 mov word [si+09],0000 ds:[46A0]=000A <-- resets GOLD
01EF:78F8 C6441100 mov byte [si+11],00 ds:[46A8]=0000 <-- resets Equipped weapon
01EF:78FC C6441200 mov byte [si+12],00 ds:[46A9]=0000 <-- resets Equipped special item
01EF:7900 C6441300 mov byte [si+13],00 ds:[46AA]=0200 <-- resets Equipped armour
01EF:7904 885C19 mov [si+19],bl ds:[46B0]=0002 <-- refresh hero's ID
01EF:7907 803E9E4001 cmp byte [409E],01 ds:[409E]=0002 <-- if dwarf
01EF:790C 7504 jne 00007912 ($+4) (down)
01EF:790E 804C0E80 or byte [si+0E],80 ds:[46A5]=0000 <-- gives him the toolkit
01EF:7912 BB0800 mov bx,0008 <-- "The character is renewed" string
01EF:7915 E8D50F call 000088ED ($+fd5) <-- draws the scroll

== Searched room table ==

The game keeps track of the ''searched'' room by storing the value FF into two tables (treasure and traps searches) using the room number as relative offset (''bx''). 
Room numbers go from 00 to 2A so each table is 2B bytes long and every byte of the table is set to 00 at the beginnng of the quest. 
The code that puts FF into the table: 
mov byte ptr [bx+4B70h], 0FFh [0B6B:4B70] starting address of TREASURE search
mov byte ptr [bx+4B9Bh], 0FFh [0B6B:4B9B] starting address of TRAPS/SECRET PASSAGES search
NOTE: upon starting a quest, every Special event ID is put into these tables replacing the 00.

== Equipment screen ==
With ''position on screen'' is intended the string header 11XXYY

0x014863 Hero's classes label (ie. Barbarian) position on screen
0x00DF2B pointers block to default Hero's classes (5 pointers)
0x00DF35 default Hero's classes labels (5 Labels)

0x014873 Hero's name label (ie. Sigmar) position on screen
0x00E1B7 pointers block to default Hero's names
0x00E1C5 default Hero's names labels (5 Labels)

0x0141A4 first epilogue panel text (its pointer '''A5C4''' is written inside the code at offset 0x0649)
0x0143A2 second epilogue panel text (its pointer '''A7C2''' is written inside the code at offset 0x0658)

0x0147F7 actual gear prices (hexadecimal) - 4x12 = 30 Bytes (2 bytes for equipment bit mask and 2 bytes for default price, little endian)
0x01482B pointers block to single gear costs - 2xC = 18 Bytes
0x014843 price (in decimal) labels - 1F Bytes

0x01486F "GOLD" label position on screen
0x014867 gold amount position on screen (default is 0000)
0x014877 equipment names position on screen
0x01487B pointers block to the pointers in [language].bin where the item names are - 0x18 Bytes

== Various ==
Every WORD offsets are hexadecimal, little endian values.

0x00CDF3: Game font (2F0h bytes long). 8x8 - 94 chars, can be edited with Nyerguds' Westwood font editor.

0x00DCB5: Sequence of 20 bytes (4 groups of 5 bytes) with facing codes of the heroe's sprites in the 4 directions (S-E-W-N).
0x00DCC9: 4 words for sprite direction codification FF00=South ecc..
0x00DF95: Sequence of 11 groups of 4 bytes used for teleportation in "castle of mistery" quest (Room, X, Y, door direction that could be 00,01,1A)
0x00DFDC: Sequence of 21 groups of 3 words used to define furniture (first word: X,Y dimension of the frame - second word: Y,X offset in pixels from the origin tile - third word: offset of the frame in FURN.VGA)
0x00E05B: Group of 4 offsets for the walls graphics in graphics.vga (2 wariations of the left wall and 2 of the right wall).
0x00E062: 26 bytes (00 or 01) used for wall variations based on ROOM tile position number (see diamond scheme above). Basically each position has its own fixed wall texture that is displayed only if a wall is present.
0x00E3E6: List of 28 (1Ch) Groups of 5 bytes each representing Movement (BYTE), Attack (BYTE), Defense (BYTE) and Death special event offset (WORD) of each monster (00-1B).
0x00E8E8: 32 pointers (words) to the monster profiles in game.
0x00E92A: Monster's profiles location. Monsters are numbered in-game from 00 to 20h (maximum) and profiles (10 bytes) are stored starting from here (0x4D4A in memory).
0x00ED28: Sequence of 256 BYTES used as index for drawing the 2D map walls, listing all possible states of wall and doors (values from 00 to FF that refer to the graphic slot IDs inside MAPS.VGA).
0x00F64F: List of 12 pointers to magic spells specific routines into code segment.
0x00F669: List of 30 pointers to special events specific routines into code segment.
0x00F6A5: List of 30 pointers to monster's profiles location in memory (each pointer is 1A from the other).
0x00F703: VGA Palette - 300h bytes as RGB 256 colours
0x00FB9D: Position on screen of the object's name in 2D map (monsters, furniture, heroes etc...)

0x013CDD: List of 31 (words) offsets of the HEROES frame animation (attack, defense, death) in MEN.VGA
0x013D1B: List of 31 (words) frame dimensions (X,Y) of the previous corresponding frames in MEN.VGA
0x013D59: List of 31 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the previous corresponding frames in MEN.VGA
0x013D97: List of 8 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the monster animation frames in MONSTERS.VGA
0x014125: Sequence of 42 offsets (84 bytes) to the tile graphic of the rooms and corridors of isometric map (01-13 points all to 1F80, the tile for the corridors)
0x014179: Sequence of 2A bytes that are indexes of the tile graphic of the rooms and corridors of 2D map (01-13 are all 01, the index tile for the corridors)

0x014920: position on screen of a bar filled with 20h char used to delete the equipment names while moving the mouse over the icons
0x014924: Text colour (1F is white)
0x014925: Background colour (14 is transparent)
0x014943: equipment names position on screen during a quest (the subsequent 28 zeroes are the placeholder)

0x014A42: Sequence of 7 pointers in language.bin of the potion effect texts
0x00E472: Sequence of 5 pointers in language.bin of the potion finding texts (all but holy water and heroic brew, that has direct pointers inside the code)
0x00E4FE: Sequence of 1Ch pointers in language.bin of the monsters names (2D map)
0x00E536: Sequence of 30h index in maps.vga that assign names of the object (01=fallen rock, 00=all traps or hidden objects with no name, 03=Stairs) in OBJECT BLOCK order.
0x00E566: 23h bitmasks that define which object is passable by projectiles
0x00EE2D: Offsets (12) sequence of object icons in maps.vga (from ID 30 to 3B, 00D1 = fallen rock)
0x00EE45: Offsets sequence of monster's icons in maps.vga (ID 00 = 40D3 = goblin)

== Intro Sequence ==
Every text panel of the intro resides into '''INTRO.EXE''' and they're in English only. 
In order to translate them (or change the lenght of the text) you have to uncompress the exe first, then Locate every pointers of each panel. 
The data segment inside the exe starts at '''0x01C0'''. Every pointer is relative to this address. 

{|class="wikitable"
! Panel # !! default pointer value !! pointer exe offset
|-
| 1 || 0603 || 0x0212
|-
| 2 || F203 || 0x0214
|-
| 3 || 9B04 || 0x0216
|-
| 4 || 8706 || 0x0218
|-
| 5 || 7008 || 0x021A
|-
| 6 || CA0A || 0x021C
|}
The panels layout follows the same rules described under [[HeroQuest Strings Format]]

0x001675 Game font, this is the exact copy of the font in quest.exe (See various offests section above).

= Protection screen =
to restore shield protection in UNCOMPRESSED QUEST.EXE modify
offset 0x0541 from 90 90 90 to E8 DC FE (if you modify these bytes only the shield screen stays and regardless of page entered the game starts anyway)
offset 0x0549 from EB to 74

HeroQuest EXE File

2026-06-26T12:51:42Z

Theruler: /* Various */

The original exe is compressed with EXEPACKER, you must decompress with UNP to manipulate it.

{{Executable Infobox
| Interpreted = N
| Platform = MS-DOS
| Code = 16-bit x86
| Games = {{Game|HeroQuest}}
Memory information:''' Code segment = 01EF Data segment = 0B6B Stack segment = 25F2'''
}}

= [CODE SEGMENT] Main Routines =
These are the main routines of the game, disassembled with DOSBOX debugger and annotated.

== in-game main loop ==
01EF:0413 E8E65F call 000063FC ($+5fe6) <---- ???
01EF:0416 E8FA5F call 00006413 ($+5ffa) <---- Checks left mouse button and everityng under it
01EF:0419 C606CC40FF mov byte [40CC],FF ds:[40CC]=DFFF
01EF:041E F606923920 test byte [3992],20 ds:[3992]=9200 <---- Checks if right mouse button has been pressed
01EF:0423 7403 je 00000428 ($+3) (no jmp)
01EF:0425 E82E03 call 00000756 ($+32e) <---- ends the turn if right mouse button pressed
01EF:0428 E85963 call 00006784 ($+6359) <---- ???
01EF:042B E8A202 call 000006D0 ($+2a2) <---- ???
01EF:042E E8E564 call 00006916 ($+64e5) <---- draws in the correct order heroes and forniture
01EF:0431 E84553 call 00005779 ($+5345) <---- same as above?
01EF:0434 E8DD53 call 00005814 ($+53dd) <---- ???
01EF:043A E87B53 call 000057B8 ($+537b) <---- draws heroes, monsters, forniture and doors (not the walls)
01EF:043D E8B454 call 000058F4 ($+54b4) <---- Checks if orthogonal tiles are walkable and updates the directional arrows
01EF:0440 E8A156 call 00005AE4 ($+56a1) <---- Checks if monsters are present in the room and updates search icons
01EF:0443 E81E60 call 00006464 ($+601e) <---- activates attack, magic, treasure, traps icons
01EF:0446 E8CF60 call 00006518 ($+60cf) <---- draws yellow figures on top left
01EF:0449 E8C859 call 00005E14 ($+59c8) <---- draws glove mouse pointer
01EF:044C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0451 7503 jne 00000456 ($+3) (down)
01EF:0453 E88E5C call 000060E4 ($+5c8e) <---- ???
01EF:0456 E87E59 call 00005DD7 ($+597e) <---- Clean the previous mouse sprite
01EF:0459 E85954 call 000058B5 ($+5459) <---- Clean the previous hero sprite
01EF:045C E82100 call 00000480 ($+21) <---- Quest event checks
01EF:045F E8EC13 call 0000184E ($+13ec) <---- Checks if the hero stands on a stair tile
01EF:0462 803E973F00 cmp byte [3F97],00 ds:[3F97]=0000
01EF:0467 7403 je 0000046C ($+3) (no jmp)
01EF:0469 E8BA00 call 00000526 ($+ba) <---- End turn wrap up (resets registers and variables)
01EF:046C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0471 7401 je 00000474 ($+1) (no jmp)
01EF:0473 C3 ret
01EF:0474 803E923940 cmp byte [3992],40 ds:[3992]=9200
01EF:0479 7503 jne 0000047E ($+3) (down)
01EF:047B E94FFE jmp 000002CD ($-1b1) (up)
01EF:047E EB93 jmp short 00000413 ($-6d) (up) <--- goes back on top

== Shooting routine ==
Shooting routine (magic and throwing weapons) is utterly broken in this game. 
The code checks the map tile the projectile is above and determine if the line of sight is blocked or free. 
The way the map is coded resulted in a convoluted code that fails to check LOS. 
'''You can shoot past walls''' and always hit the target if the hero stands in contact with one wall and the target is the adjacent room exactly above or exactly to the right. 
You can also hit the target standing in the perfect diagonal like bishop's movement, and this could happen even if there are no active rooms (solid rock, but marked with 00 like rooms' inner tiles) in between. 
'''LOS is blocked''' by parallel unrevealed secret doors and opened doors. 
 

Weapon check:
01EF:0AB2 32C0 xor al,al
01EF:0AB4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- di+11 is equipped weapon. checks if it is crossbow?
01EF:0AB8 7501 jne 00000ABB ($+1) (no jmp)
01EF:0ABA C3 ret
01EF:0ABB B0FD mov al,FD <-- not crossbow
01EF:0ABD C3 ret
01EF:0ABE 807D1101 cmp byte [di+11],01 ds:[B1A7]=0000 <-- starts here
01EF:0ABF 7D11 jge 00000AD2 ($+11) (down) <-- jump if greater or equal
01EF:0AC1 0174EE add [si-12],si ds:[4DBA]=260D
01EF:0AC4 807D1102 cmp byte [di+11],02 ds:[46A8]=0010 <-- F64511/807D11 are the test/cmp of the equipped weapon
01EF:0AC8 74E8 je 00000AB2 ($-18) (up)
01EF:0ACA 807D1140 cmp byte [di+11],40 ds:[46A8]=0010
01EF:0ACE 74E2 je 00000AB2 ($-1e) (up)
01EF:0AD0 B0FC mov al,FC
01EF:0AD2 EBE0 jmp short 00000AB4 ($-20) (up)
01EF:0AD4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- crossbow
01EF:0AD8 750F jne 00000AE9 ($+f) (no jmp)
01EF:0ADA F6451120 test byte [di+11],20 ds:[46A8]=0010 <-- throwing axe
01EF:0ADE 7509 jne 00000AE9 ($+9) (no jmp)
01EF:0AE0 F6451140 test byte [di+11],40 ds:[46A8]=0010 <-- spear
01EF:0AE4 7503 jne 00000AE9 ($+3) (no jmp)
01EF:0AE6 B0FC mov al,FC
01EF:0AE8 C3 ret

SHOOTING ROUTINE STARTS HERE:
01EF:0AE9 C606B73F01 mov byte [3FB7],01 ds:[3FB7]=0301
01EF:0AEE E82B00 call 00000B1C ($+2b)
01EF:0AF1 32C0 xor al,al
01EF:0AF3 803EA83F01 cmp byte [3FA8],01 ds:[3FA8]=0001 <-- check if LOS is blocked (1)
01EF:0AF8 7401 je 00000AFB ($+1) (down)
01EF:0AFA C3 ret
01EF:0AFB B0FE mov al,FE
01EF:0AFD C606B73F00 mov byte [3FB7],00 ds:[3FB7]=0300
01EF:0B02 C3 ret

01EF:0B1C E81F06 call 0000113E ($+61f)
01EF:0B1F A0A83F mov al,[3FA8] ds:[3FA8]=0001
01EF:0B22 3401 xor al,01
01EF:0B24 A2B23F mov [3FB2],al ds:[3FB2]=0000
01EF:0B27 C3 ret

Set global variables (shooter and target position/distance):
01EF:113E 8B36D43F mov si,[3FD4] ds:[3FD4]=4DC2
01EF:1142 8A7C01 mov bh,[si+01] ds:[4DC3]=0F0A <-- Target X
01EF:1145 8A5C02 mov bl,[si+02] ds:[4DC4]=270F <-- Target Y
01EF:1148 8BCB mov cx,bx
01EF:114A 8B3E3746 mov di,[4637] ds:[4637]=4697
01EF:114E 8A7501 mov dh,[di+01] ds:[4698]=120A <-- Hero X
01EF:1151 8A5502 mov dl,[di+02] ds:[4699]=1212 <-- Hero Y
01EF:1154 8836A53F mov [3FA5],dh ds:[3FA5]=0C0C <-- Hero X saved at 3FA5
01EF:1158 8816A63F mov [3FA6],dl ds:[3FA6]=020C <-- Hero Y saved at 3FA6
01EF:115C C6069F3F00 mov byte [3F9F],00 ds:[3F9F]=0000 <-- reset projectile temp distance (area used for math)
01EF:1161 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0002 <-- reset LOS 0=free, 1=blocked
01EF:1166 B7FF mov bh,FF
01EF:1168 8AC6 mov al,dh
01EF:116A 2AC5 sub al,ch
01EF:116C 7504 jne 00001172 ($+4) (down)
01EF:116E B700 mov bh,00 <-- target is on the RIGHT (>)
01EF:1170 EB06 jmp short 00001178 ($+6) (down)
01EF:1172 7304 jnc 00001178 ($+4) (down)
01EF:1174 F6D8 neg al
01EF:1176 B701 mov bh,01 <-- target is on the LEFT (<)
01EF:1178 A2A13F mov [3FA1],al ds:[3FA1]=0301 <-- horizontal distance shooter-target saved at 3FA1
01EF:117B 8AE8 mov ch,al
01EF:117D B3FF mov bl,FF
01EF:117F 8AC2 mov al,dl
01EF:1181 2AC1 sub al,cl
01EF:1183 7504 jne 00001189 ($+4) (down)
01EF:1185 B300 mov bl,00 <-- target is UNDER (v)
01EF:1187 EB06 jmp short 0000118F ($+6) (down)
01EF:1189 7304 jnc 0000118F ($+4) (down)
01EF:118B F6D8 neg al
01EF:118D B301 mov bl,01 <-- target is ABOVE (^)
01EF:118F A2A23F mov [3FA2],al ds:[3FA2]=0003 <-- vertical distance shooter-target saved at 3FA2
01EF:1192 3AC5 cmp al,ch
01EF:1194 7240 jc 000011D6 ($+40) (no jmp)

bx (bh+bl) registry status based on target/shooter position:
{|class="wikitable"
| 0101 || 0001 || FF01
|-
| 0100 || TRGT || FF00
|-
| 01FF || 00FF || FFFF
|-
|-
|}

VERTICAL shooting routine:
01EF:1196 8ACD mov cl,ch
01EF:1198 8AE8 mov ch,al
01EF:119A 8AD0 mov dl,al
01EF:119C 000E9F3F add [3F9F],cl ds:[3F9F]=0000 <-- update projectile travelled distance
01EF:11A0 38169F3F cmp [3F9F],dl ds:[3F9F]=0000
01EF:11A4 7208 jc 000011AE ($+8) (no jmp)
01EF:11A6 28169F3F sub [3F9F],dl ds:[3F9F]=0000
01EF:11AA 003EA53F add [3FA5],bh ds:[3FA5]=0F0D <-- Temp Projectile X (d 0:F655)
01EF:11AE 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y (d 0:F656)
01EF:11B2 C706E9370000 mov word [37E9],0000 ds:[37E9]=D238 <-- set Vertical flag
01EF:11B8 882EEB37 mov [37EB],ch ds:[37EB]=F1E0 <-- distance between projectile and target
01EF:11BC 80FD01 cmp ch,01
01EF:11BF 7505 jne 000011C6 ($+5) (down)
01EF:11C1 80FBFF cmp bl,FF
01EF:11C4 7403 je 000011C9 ($+3) (no jmp)
01EF:11C6 E84B00 call 00001214 ($+4b)
01EF:11C9 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0000 <-- check if LOS is still free (0), if 1 exits
01EF:11CE 7401 je 000011D1 ($+1) (no jmp)
01EF:11D0 C3 ret
01EF:11D1 FECD dec ch
01EF:11D3 75C7 jne 0000119C ($-39) (up)
01EF:11D5 C3 ret

HORIZONTAL shooting routine:
01EF:11D6 8AD0 mov dl,al
01EF:11D8 8ACD mov cl,ch <-- it moves ch in cl
01EF:11DA 32ED xor ch,ch <-- and puts to 00 ch because uses loop (thus cx) instead of dec ch of vertical routine
01EF:11DC 00169F3F add [3F9F],dl ds:[3F9F]=0001
01EF:11E0 380E9F3F cmp [3F9F],cl ds:[3F9F]=0001
01EF:11E4 7208 jc 000011EE ($+8) (no jmp)
01EF:11E6 280E9F3F sub [3F9F],cl ds:[3F9F]=0001
01EF:11EA 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y
01EF:11EE 003EA53F add [3FA5],bh ds:[3FA5]=0F03 <-- Temp Projectile X
01EF:11F2 C706E9370100 mov word [37E9],0001 ds:[37E9]=0001 <-- set Horizontal flag
01EF:11F8 880EEB37 mov [37EB],cl ds:[37EB]=AA04 <-- distance between projectile and target
01EF:11FC 80F901 cmp cl,01
01EF:11FF 7505 jne 00001206 ($+5) (down)
01EF:1201 80FFFF cmp bh,FF
01EF:1204 7403 je 00001209 ($+3) (no jmp)
01EF:1206 E80B00 call 00001214 ($+b)
01EF:1209 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0001 <-- check if LOS is still free (0), if 1 exits
01EF:120E 7401 je 00001211 ($+1) (no jmp)
01EF:1210 C3 ret
01EF:1211 E2C9 loop 000011DC ($-37)
01EF:1213 C3 ret

Collision check routine on current tile IN WALL/DOORS map (ds:566F):
01EF:1214 53 push bx
01EF:1215 52 push dx
01EF:1216 8A36A63F mov dh,[3FA6] ds:[3FA6]=0839
01EF:121A 8A16A53F mov dl,[3FA5] ds:[3FA5]=3936
01EF:121E E85D4E call 0000607E ($+4e5d)
01EF:1221 80BF6F5600 cmp byte [bx+566F],00 ds:[576C]=8128 <-- Check if tile is 00, if true jumps to the Object map check
01EF:1226 742A je 00001252 ($+2a) (no jmp) at 0B6B:566F is where WALLS/DOORS map is stored
01EF:1228 8A876F56 mov al,[bx+566F] ds:[576C]=8128 <-- mov into al the current TILE (28=is north secret door)
01EF:122C 833EE93701 cmp word [37E9],0001 ds:[37E9]=0001 <-- 1=H, 0=V check for opened door subroutines
01EF:1231 7411 je 00001244 ($+11) (no jmp)

Vertical shoot subroutine that checks for Horizontal walls/doors:
01EF:1233 24AC and al,AC <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1235 0AC0 or al,al AC= 10101100
01EF:1237 7419 je 00001252 ($+19) (no jmp)
01EF:1239 A820 test al,20 <-- if door is Horizontal
01EF:123B 7442 je 0000127F ($+42) (down)
01EF:123D A804 test al,04 <-- if door is opened
01EF:123F 743E je 0000127F ($+3e) (down)
01EF:1241 EB0F jmp short 00001252 ($+f) (down)
01EF:1243 90 nop

Horizontal shoot subroutine that checks for Vertical walls/doors:
01EF:1244 245C and al,5C <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1246 0AC0 or al,al 5C= 01011100
01EF:1248 7408 je 00001252 ($+8) (down)
01EF:124A A810 test al,10 <-- if door is Vertical
01EF:124C 7431 je 0000127F ($+31) (down)
01EF:124E A804 test al,04 <-- if door is opened
01EF:1250 742D je 0000127F ($+2d) (down)

Collision check routine on current tile IN OBJECTS map (ds:586F):
01EF:1252 803EEB3701 cmp byte [37EB],01 ds:[37EB]=6E03 <-- checks if the projectile is about to hit the target
01EF:1257 742B je 00001284 ($+2b) (down)
01EF:1259 80BF6F5800 cmp byte [bx+586F],00 ds:[1576F]=3637 <-- checks if the tile is passable (00)
01EF:125E 740E je 0000126E ($+e) (down)
01EF:1260 8A876F58 mov al,[bx+586F] ds:[1576F]=3637 <-- ds:586F is where OBJECTS map is stored
01EF:1264 BB4649 mov bx,4946 <-- ds:4946 check
01EF:1267 D7 xlat
01EF:1268 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:126B EB17 jmp short 00001284 ($+17) (down)
01EF:126D 90 nop
01EF:126E 8A36A63F mov dh,[3FA6] ds:[3FA6]=004D
01EF:1272 8A16A53F mov dl,[3FA5] ds:[3FA5]=4D4D
01EF:1276 E80E00 call 00001287 ($+e)
01EF:1279 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:127C EB06 jmp short 00001284 ($+6) (down)
01EF:127E 90 nop
01EF:127F C606A83F01 mov byte [3FA8],01 ds:[3FA8]=BA6B <-- sets LOS as blocked (1) and exits
01EF:1284 5A pop dx
01EF:1285 5B pop bx
01EF:1286 C3 ret

Updates with random numbers the first three bytes of heroes' equipment every movement (presumably used as seed for RNG):
01EF:1287 51 push cx
01EF:1288 57 push di
01EF:1289 B90500 mov cx,0005
01EF:128C BF6346 mov di,4663 <-- first byte of Barbarian equipment in memory
01EF:128F 33C0 xor ax,ax
01EF:1291 803D00 cmp byte [di],00 ds:[6CAA]=0000
01EF:1294 740C je 000012A2 ($+c) (down)
01EF:1296 385501 cmp [di+01],dl ds:[6CAB]=0000
01EF:1299 7507 jne 000012A2 ($+7) (no jmp)
01EF:129B 387502 cmp [di+02],dh ds:[6CAC]=0000
01EF:129E 7502 jne 000012A2 ($+2) (no jmp)
01EF:12A0 B001 mov al,01
01EF:12A2 83C71A add di,001A <-- jumps to the following hero's equipment
01EF:12A5 E2EA loop 00001291 ($-16)
01EF:12A7 5F pop di
01EF:12A8 59 pop cx
01EF:12A9 C3 ret

TBD
01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5 <-- ds:5AC5 check
01EF:6088 8B07 mov ax,[bx] ds:[FF00]=3737
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

=== New shooting routine ===
Finally I came up with a proper line of sight mechanism that cover roughly 99% of the "impossible shots". There will always be a particular combiantion of monster-door-hero position that can lead to an "improbable shot", but that's it.

Direction choice routine

1ef:1198: 88 D0 mov al, dl
1ef:119a: 88 CC mov ah, cl
1ef:119c: 05 01 01 add ax, 0x101
1ef:119f: D0 E8 shr al, 1
1ef:11a1: D0 EC shr ah, 1
1ef:11a3: A3 AA 3F mov word ptr [0x3faa], ax <-- save half distance of X and Y

1ef:11a6: 30 C0 xor al, al <-- direction choice routine
1ef:11a8: 3A 0E AB 3F cmp cl, byte ptr [0x3fab] <-- check if X distance reached it's half
1ef:11ac: 74 13 je 0x11c1 <-- if YES reset X half value and change direction
1ef:11ae: 3A 16 AA 3F cmp dl, byte ptr [0x3faa] <-- check if Y distance reached it's half
1ef:11b2: 74 06 je 0x11ba <-- if YES reset Y half value and change direction
1ef:11b4: 38 CA cmp dl, cl
1ef:11b6: 7C 2B jl 0x11e3
1ef:11b8: EB 0C jmp 0x11c6
1ef:11ba: C6 06 AA 3F 00 mov byte ptr [0x3faa], 0
1ef:11bf: EB 22 jmp 0x11e3
1ef:11c1: C6 06 AB 3F 00 mov byte ptr [0x3fab], 0

Vertical
1ef:11c6: 84 D2 test dl, dl <-- vertical routine
1ef:11c8: 74 19 je 0x11e3 <-- if Y distance is zero go to horizontal routine
1ef:11ca: 00 1E A6 3F add byte ptr [0x3fa6], bl
1ef:11ce: B8 00 00 mov ax, 0
1ef:11d1: 80 FB FF cmp bl, 0xff
1ef:11d4: 75 02 jne 0x11d8
1ef:11d6: B4 1A mov ah, 0x1a
1ef:11d8: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11db: FE CA dec dl
1ef:11dd: 88 16 EB 37 mov byte ptr [0x37eb], dl
1ef:11e1: EB 1B jmp 0x11fe

Horizontal
1ef:11e3: 84 C9 test cl, cl <-- horizontal routine
1ef:11e5: 74 DF je 0x11c6 <-- if X distance is zero go to vertical routine
1ef:11e7: 00 3E A5 3F add byte ptr [0x3fa5], bh
1ef:11eb: B8 01 00 mov ax, 1
1ef:11ee: 80 FF FF cmp bh, 0xff
1ef:11f1: 75 02 jne 0x11f5
1ef:11f3: B4 01 mov ah, 1
1ef:11f5: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11f8: FE C9 dec cl
1ef:11fa: 88 0E EB 37 mov byte ptr [0x37eb], cl

1ef:11fe: E8 13 00 call 0x1214 <-- calls wall/object collision check routine
1ef:1201: 80 3E A8 3F 00 cmp byte ptr [0x3fa8], 0 <-- collision flag
1ef:1206: 74 01 je 0x1209
1ef:1208: C3 ret <-- else object or wall was HIT
1ef:1209: 88 C8 mov al, cl
1ef:120b: 00 D0 add al, dl <-- if X+Y distance is not zero
1ef:120d: 75 97 jne 0x11a6 <-- back to direction choice routine
1ef:120f: C3 ret <-- else target was HIT
1ef:1210: 90 nop
1ef:1211: 90 nop
1ef:1212: 90 nop
1ef:1213: 90 nop

Wall/object collision check routine

1ef:1214: 53 push bx
1ef:1215: 52 push dx
1ef:1216: 8A 36 A6 3F mov dh, byte ptr [0x3fa6]
1ef:121a: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:121e: E8 5D 4E call 0x607e
1ef:1221: A0 EA 37 mov al, byte ptr [0x37ea]
1ef:1224: 30 E4 xor ah, ah
1ef:1226: 01 C3 add bx, ax
1ef:1228: 8A 87 6F 56 mov al, byte ptr [bx + 0x566f] <-- checks if the tile is free (00) or occupied (30=rock)
1ef:122c: 3C 00 cmp al, 0
1ef:122e: 74 21 je 0x1251 <-- if occupied jump to specific object check
1ef:1230: 80 3E E9 37 01 cmp byte ptr [0x37e9], 1
1ef:1235: 74 0C je 0x1243
1ef:1237: A8 20 test al, 0x20 <-- Horizontal Door check
1ef:1239: 75 12 jne 0x124d
1ef:123b: A8 80 test al, 0x80 <-- Horizontal Wall check
1ef:123d: 74 12 je 0x1251
1ef:123f: EB 3E jmp 0x127f
1ef:1241: 90 nop
1ef:1242: 90 nop

1ef:1243: A8 10 test al, 0x10 <-- Vertical Door check
1ef:1245: 75 06 jne 0x124d
1ef:1247: A8 40 test al, 0x40 <-- Vertical Wall check
1ef:1249: 74 06 je 0x1251
1ef:124b: EB 32 jmp 0x127f

1ef:124d: A8 04 test al, 4 <-- opened door check
1ef:124f: 74 2E je 0x127f

1ef:1251: 8A 87 6F 58 mov al, byte ptr [bx + 0x586f] <-- specific object check
1ef:1255: BB 86 49 mov bx, 0x4986 <-- bitmask table where object properties are stored
1ef:1258: 51 push cx
1ef:1259: 88 C1 mov cl, al
1ef:125b: C0 E9 03 shr cl, 3
1ef:125e: 01 CB add bx, cx
1ef:1260: 59 pop cx
1ef:1261: 24 07 and al, 7
1ef:1263: 0F A3 07 bt word ptr [bx], ax <-- verify if the object is passable (ie. table) or not (ie. fireplace)
1ef:1266: 72 17 jb 0x127f
1ef:1268: 80 3E EB 37 00 cmp byte ptr [0x37eb], 0 <-- checks if the projectile hit the target
1ef:126d: 74 15 je 0x1284
1ef:126f: 8A 36 A6 3F mov dh, byte ptr [0x3fa6] <-- update projectile's X and Y
1ef:1273: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:1277: E8 0D 00 call 0x1287
1ef:127a: A2 A8 3F mov byte ptr [0x3fa8], al
1ef:127d: EB 05 jmp 0x1284
1ef:127f: C6 06 A8 3F 01 mov byte ptr [0x3fa8], 1
1ef:1284: 5A pop dx
1ef:1285: 5B pop bx
1ef:1286: C3 ret

== Monster attack routine ==
This first block defines the target priority: barbarian - dwarf - elf - wizard - ragnar 
It is possible to revers it forcing the monster to chose the weaker hero first reversing the logic by starting from ragnar profile and then jump backward subtracting 1A. 
See [[#Heroes' default profiles|Heroes' default profiles]] for reference.

01EF:2257 BE6346 mov si,4663 <-- starting profile offset 4663=barbarian
01EF:225A B90500 mov cx,0005 <-- loop repeats 5 times
01EF:225D 51 push cx
01EF:225E 8936D63F mov [3FD6],si ds:[3FD6]=46B1
01EF:2262 8A4419 mov al,[si+19] ds:[46CA]=0003 <-- jumps to hero's ID position
01EF:2265 A2BC3F mov [3FBC],al ds:[3FBC]=0003
01EF:2268 E85800 call 000022C3 ($+58)
01EF:226B 59 pop cx
01EF:226C 8B36D63F mov si,[3FD6] ds:[3FD6]=46B1
01EF:2270 83C61A add si,001A <-- jumps to the next profile
01EF:2273 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0102
01EF:2278 7503 jne 0000227D ($+3) (down)
01EF:227A E95102 jmp 000024CE ($+251) (down)
01EF:227D 803EA83F03 cmp byte [3FA8],03 ds:[3FA8]=0102
01EF:2282 7503 jne 00002287 ($+3) (down)
01EF:2284 E94702 jmp 000024CE ($+247) (down)
01EF:2287 E2D4 loop 0000225D ($-2c)
01EF:2289 C3 ret

01EF:22C3 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000
01EF:22C8 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:22CB 7503 jne 000022D0 ($+3) (no jmp)
01EF:22CD E98101 jmp 00002451 ($+181) (down)
01EF:22D0 8A4403 mov al,[si+03] ds:[4666]=C726 <-- hero's room
01EF:22D3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room
01EF:22D6 7403 je 000022DB ($+3) (down)
01EF:22D8 E97601 jmp 00002451 ($+176) (down)
01EF:22DB F6441801 test byte [si+18],01 ds:[467B]=0000
01EF:22DF 7403 je 000022E4 ($+3) (down)
01EF:22E1 E96D01 jmp 00002451 ($+16d) (down)
01EF:22E4 8B5401 mov dx,[si+01] ds:[4664]=0D06
01EF:22E7 52 push dx
01EF:22E8 57 push di
01EF:22E9 E864F7 call 00001A50 ($-89c)
01EF:22EC 5F pop di
01EF:22ED 57 push di
01EF:22EE E84E02 call 0000253F ($+24e)
01EF:22F1 E8F03D call 000060E4 ($+3df0)
01EF:22F4 B9F401 mov cx,01F4
01EF:22F7 E88D23 call 00004687 ($+238d)
01EF:22FA 5F pop di
01EF:22FB 5A pop dx
01EF:22FC 8816A53F mov [3FA5],dl ds:[3FA5]=1106
01EF:2300 8836A63F mov [3FA6],dh ds:[3FA6]=0411
01EF:2304 BBA240 mov bx,40A2
01EF:2307 891ECA40 mov [40CA],bx ds:[40CA]=40A2
01EF:230B E8703D call 0000607E ($+3d70) <-- if jumped the monster doesn't attack when in contact

01EF:230E 81C36F54 add bx,546F
01EF:2312 8A07 mov al,[bx] ds:[3F28]=4040
01EF:2314 243F and al,3F
01EF:2316 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check. if removed the monster attack through walls and doors
01EF:2319 7403 je 0000231E ($+3) (down)
01EF:231B E93301 jmp 00002451 ($+133) (down)
01EF:231E B501 mov ch,01
01EF:2320 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:2323 2A4501 sub al,[di+01] ds:[4DB9]=0F06
01EF:2326 7504 jne 0000232C ($+4) (no jmp)
01EF:2328 B500 mov ch,00
01EF:232A EB08 jmp short 00002334 ($+8) (down)
01EF:232C 3C80 cmp al,80
01EF:232E 7204 jc 00002334 ($+4) (no jmp)
01EF:2330 F6D8 neg al
01EF:2332 B5FF mov ch,FF
01EF:2334 A2A13F mov [3FA1],al ds:[3FA1]=0100
01EF:2337 882EA33F mov [3FA3],ch ds:[3FA3]=0100
01EF:233B B501 mov ch,01
01EF:233D A0A63F mov al,[3FA6] ds:[3FA6]=0411
01EF:2340 2A4502 sub al,[di+02] ds:[4DBA]=260F
01EF:2343 7504 jne 00002349 ($+4) (no jmp)
01EF:2345 B500 mov ch,00
01EF:2347 EB08 jmp short 00002351 ($+8) (down)
01EF:2349 3C80 cmp al,80
01EF:234B 7204 jc 00002351 ($+4) (no jmp)
01EF:234D F6D8 neg al
01EF:234F B5FF mov ch,FF
01EF:2351 A2A23F mov [3FA2],al ds:[3FA2]=0001
01EF:2354 882EA43F mov [3FA4],ch ds:[3FA4]=0601
01EF:2358 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:235B 89169F3F mov [3F9F],dx ds:[3F9F]=1006
01EF:235F C606A93F00 mov byte [3FA9],00 ds:[3FA9]=0000
01EF:2364 8A5D09 mov bl,[di+09] ds:[4DC1]=8100
01EF:2367 02DB add bl,bl
01EF:2369 02DB add bl,bl
01EF:236B 025D09 add bl,[di+09] ds:[4DC1]=8100
01EF:236E 32FF xor bh,bh
01EF:2370 8A870648 mov al,[bx+4806] [illegal]
01EF:2374 A29C3F mov [3F9C],al ds:[3F9C]=0003
01EF:2377 8A0EA23F mov cl,[3FA2] ds:[3FA2]=0001
01EF:237B A0A13F mov al,[3FA1] ds:[3FA1]=0100
01EF:237E 3AC1 cmp al,cl
01EF:2380 7203 jc 00002385 ($+3) (no jmp)
01EF:2382 EB6A jmp short 000023EE ($+6a) (down)
01EF:2384 90 nop
01EF:2385 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2389 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:238D 7425 je 000023B4 ($+25) (down)
01EF:238F A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:2392 0AC0 or al,al
01EF:2394 741E je 000023B4 ($+1e) (down)
01EF:2396 02F0 add dh,al
01EF:2398 E8DD00 call 00002478 ($+dd)
01EF:239B 3CFF cmp al,FF
01EF:239D 7503 jne 000023A2 ($+3) (no jmp)
01EF:239F E9B500 jmp 00002457 ($+b5) (down)
01EF:23A2 0AC0 or al,al
01EF:23A4 750E jne 000023B4 ($+e) (no jmp)
01EF:23A6 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:23AA E8B000 call 0000245D ($+b0)
01EF:23AD 7303 jnc 000023B2 ($+3) (down)
01EF:23AF E99900 jmp 0000244B ($+99) (down)
01EF:23B2 EBD1 jmp short 00002385 ($-2f) (up)
01EF:23B4 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23B8 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23BB 3AC2 cmp al,dl
01EF:23BD 7503 jne 000023C2 ($+3) (no jmp)
01EF:23BF E98F00 jmp 00002451 ($+8f) (down)
01EF:23C2 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23C5 0AC0 or al,al
01EF:23C7 7503 jne 000023CC ($+3) (no jmp)
01EF:23C9 E98500 jmp 00002451 ($+85) (down)
01EF:23CC 02D0 add dl,al
01EF:23CE E8A700 call 00002478 ($+a7)
01EF:23D1 3CFF cmp al,FF
01EF:23D3 7503 jne 000023D8 ($+3) (no jmp)
01EF:23D5 E97F00 jmp 00002457 ($+7f) (down)
01EF:23D8 0AC0 or al,al
01EF:23DA 7403 je 000023DF ($+3) (down)
01EF:23DC EB73 jmp short 00002451 ($+73) (down)
01EF:23DE 90 nop
01EF:23DF A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23E2 32E4 xor ah,ah
01EF:23E4 E87600 call 0000245D ($+76)
01EF:23E7 7303 jnc 000023EC ($+3) (down)
01EF:23E9 EB60 jmp short 0000244B ($+60) (down)
01EF:23EB 90 nop
01EF:23EC EB97 jmp short 00002385 ($-69) (up)
01EF:23EE 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23F2 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23F5 3AC2 cmp al,dl
01EF:23F7 7426 je 0000241F ($+26) (down)
01EF:23F9 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23FC 0AC0 or al,al
01EF:23FE 741F je 0000241F ($+1f) (down)
01EF:2400 02D0 add dl,al
01EF:2402 E87300 call 00002478 ($+73)
01EF:2405 3CFF cmp al,FF
01EF:2407 7503 jne 0000240C ($+3) (no jmp)
01EF:2409 EB4C jmp short 00002457 ($+4c) (down)
01EF:240B 90 nop
01EF:240C 0AC0 or al,al
01EF:240E 750F jne 0000241F ($+f) (no jmp)
01EF:2410 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:2413 32E4 xor ah,ah
01EF:2415 E84500 call 0000245D ($+45)
01EF:2418 7303 jnc 0000241D ($+3) (down)
01EF:241A EB2F jmp short 0000244B ($+2f) (down)
01EF:241C 90 nop
01EF:241D EBCF jmp short 000023EE ($-31) (up)
01EF:241F 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2423 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:2427 7428 je 00002451 ($+28) (down)
01EF:2429 A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:242C 0AC0 or al,al
01EF:242E 7421 je 00002451 ($+21) (down)
01EF:2430 02F0 add dh,al
01EF:2432 E84300 call 00002478 ($+43)
01EF:2435 3CFF cmp al,FF
01EF:2437 741E je 00002457 ($+1e) (down)
01EF:2439 0AC0 or al,al
01EF:243B 7514 jne 00002451 ($+14) (no jmp)
01EF:243D 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:2441 E81900 call 0000245D ($+19)
01EF:2444 7303 jnc 00002449 ($+3) (down)
01EF:2446 EB03 jmp short 0000244B ($+3) (down)
01EF:2448 90 nop
01EF:2449 EBA3 jmp short 000023EE ($-5d) (up)
01EF:244B C606A83F01 mov byte [3FA8],01 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2450 C3 ret
01EF:2451 C606A83F02 mov byte [3FA8],02 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2456 C3 ret
01EF:2457 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000 <-- hero is reachable
01EF:245C C3 ret

01EF:245D 89169F3F mov [3F9F],dx ds:[3F9F]=1006 <-- called only when the monster needs to move
01EF:2461 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:2465 8807 mov [bx],al ds:[3F28]=6148
01EF:2467 886701 mov [bx+01],ah ds:[3F29]=0061
01EF:246A 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:246F FE06A93F inc byte [3FA9] ds:[3FA9]=0000
01EF:2473 FE0E9C3F dec byte [3F9C] ds:[3F9C]=0003
01EF:2477 C3 ret

01EF:2478 A0BC3F mov al,[3FBC] ds:[3FBC]=0000
01EF:247B E80139 call 00005D7F ($+3901)
01EF:247E 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:2481 7408 je 0000248B ($+8) (down)
01EF:2483 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:2486 7503 jne 0000248B ($+3) (no jmp)
01EF:2488 B0FF mov al,FF
01EF:248A C3 ret

01EF:248B B500 mov ch,00
01EF:248D 382EBC3F cmp [3FBC],ch ds:[3FBC]=0000
01EF:2491 7412 je 000024A5 ($+12) (down)
01EF:2493 8AC5 mov al,ch
01EF:2495 E8E738 call 00005D7F ($+38e7)
01EF:2498 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:249B 7408 je 000024A5 ($+8) (down)
01EF:249D 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:24A0 7503 jne 000024A5 ($+3) (no jmp)
01EF:24A2 B001 mov al,01
01EF:24A4 C3 ret
01EF:24A5 FEC5 inc ch
01EF:24A7 80FD04 cmp ch,04
01EF:24AA 75E1 jne 0000248D ($-1f) (no jmp)
01EF:24AC 52 push dx
01EF:24AD E8CE3B call 0000607E ($+3bce)
01EF:24B0 5A pop dx
01EF:24B1 81C36F58 add bx,586F
01EF:24B5 803F00 cmp byte [bx],00 ds:[3F28]=6148
01EF:24B8 7403 je 000024BD ($+3) (down)
01EF:24BA B002 mov al,02
01EF:24BC C3 ret
01EF:24BD 8A8700FC mov al,[bx-0400] ds:[3B28]=E04B
01EF:24C1 243F and al,3F
01EF:24C3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check.
01EF:24C6 7503 jne 000024CB ($+3) (no jmp)
01EF:24C8 32C0 xor al,al
01EF:24CA C3 ret
01EF:24CB B003 mov al,03
01EF:24CD C3 ret

01EF:24CE 893ED43F mov [3FD4],di ds:[3FD4]=4DB8
01EF:24D2 8A0EA93F mov cl,[3FA9] ds:[3FA9]=0001
01EF:24D6 0AC9 or cl,cl
01EF:24D8 7455 je 0000252F ($+55) (down)
01EF:24DA 32ED xor ch,ch
01EF:24DC BBA240 mov bx,40A2
01EF:24DF 891ECA40 mov [40CA],bx ds:[40CA]=40A4
01EF:24E3 51 push cx
01EF:24E4 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:24E8 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24EB E8903B call 0000607E ($+3b90)
01EF:24EE 8A8F6F58 mov cl,[bx+586F] ds:[59FB]=0000
01EF:24F2 C6876F5800 mov byte [bx+586F],00 ds:[59FB]=0000
01EF:24F7 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:24FB 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24FE 0217 add dl,[bx] ds:[018C]=1149
01EF:2500 027701 add dh,[bx+01] ds:[018D]=0611
01EF:2503 895501 mov [di+01],dx ds:[4DB9]=0F06
01EF:2506 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:250B E8703B call 0000607E ($+3b70)
01EF:250E 888F6F58 mov [bx+586F],cl ds:[AE50]=0A16
01EF:2512 81C36F54 add bx,546F
01EF:2516 895D04 mov [di+04],bx ds:[4DBC]=55E1
01EF:2519 E834F5 call 00001A50 ($-acc)
01EF:251C 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:2520 E81C00 call 0000253F ($+1c)
01EF:2523 E8BE3B call 000060E4 ($+3bbe)
01EF:2526 B9F401 mov cx,01F4
01EF:2529 E85B21 call 00004687 ($+215b) <-- 500.000 nop cycles, to slow down monster's animation
01EF:252C 59 pop cx
01EF:252D E2B4 loop 000024E3 ($-4c)
01EF:252F 51 push cx
01EF:2530 B93200 mov cx,0032
01EF:2533 E86A11 call 000036A0 ($+116a) <-- more nops
01EF:2536 E2FB loop 00002533 ($-5)
01EF:2538 59 pop cx
01EF:2539 E853F8 call 00001D8F ($-7ad) <-- here the monster attacks whein in contact with the hero
01EF:253C E99131 jmp 000056D0 ($+3191) (down)
01EF:253F 8A4502 mov al,[di+02] ds:[EF42]=3736
01EF:2542 32E4 xor ah,ah
01EF:2544 BA000A mov dx,0A00
01EF:2547 F7E2 mul dx
01EF:2549 8BD8 mov bx,ax

01EF:4687 51 push cx
01EF:4688 E820EF call 000035AB ($-10e0)
01EF:468B 59 pop cx
01EF:468C E2F9 loop 00004687 ($-7)
01EF:468E C3 ret

01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5
01EF:6088 8B07 mov ax,[bx] ds:[0130]=0101
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

== Hero's pathfinding routine ==
The pathfinder algorithm the programmer chose was a simple variation of the A*, and is perfectly implemented. You can click on any tiles on the screen even on the invisible ones outside the room. If there is a clean path, the hero will reach that tile.

01EF:6449 E8E2D4 call 0000392E ($-2b1e)
01EF:644C E85800 call 000064A7 ($+58)
01EF:644F 833CFF cmp word [si],FFFF ds:[3911]=0000
01EF:6452 7503 jne 00006457 ($+3) (down)
01EF:6454 E95F03 jmp 000067B6 ($+35f) (down)

01EF:67B6 8B16E747 mov dx,[47E7] ds:[47E7]=0087
01EF:67BA 8B2EE947 mov bp,[47E9] ds:[47E9]=0097
01EF:67BE BB2D40 mov bx,402D
01EF:67C1 BE1941 mov si,4119
01EF:67C4 B93400 mov cx,0034
01EF:67C7 51 push cx
01EF:67C8 8B4402 mov ax,[si+02] ds:[491E]=01C0
01EF:67CB 051800 add ax,0018
01EF:67CE 2BC2 sub ax,dx
01EF:67D0 7302 jnc 000067D4 ($+2) (down)
01EF:67D0 7302 jnc 000067D4 ($+2) (no jmp)
01EF:67D2 F7D8 neg ax
01EF:67D4 D1E8 shr ax,1
01EF:67D6 8B0C mov cx,[si] ds:[4119]=0044
01EF:67D8 83C108 add cx,0008
01EF:67DB 2BCD sub cx,bp
01EF:67DD 7302 jnc 000067E1 ($+2) (no jmp)
01EF:67DF F7D9 neg cx
01EF:67E1 03C1 add ax,cx
01EF:67E3 D1E8 shr ax,1
01EF:67E5 8907 mov [bx],ax ds:[402D]=0000
01EF:67E7 83C302 add bx,0002
01EF:67EA 83C604 add si,0004
01EF:67ED 59 pop cx
01EF:67EE E2D7 loop 000067C7 ($-29)
01EF:67F0 BB2D40 mov bx,402D
01EF:67F3 B8FFFF mov ax,FFFF
01EF:67F6 B93400 mov cx,0034
01EF:67F9 3B07 cmp ax,[bx] ds:[402D]=0000
01EF:67FB 7204 jc 00006801 ($+4) (down)
01EF:67FD 8B07 mov ax,[bx] ds:[4095]=0000
01EF:67FF 8BD1 mov dx,cx
01EF:6801 83C302 add bx,0002
01EF:6804 E2F3 loop 000067F9 ($-d)
01EF:6806 3D0800 cmp ax,0008
01EF:6809 7201 jc 0000680C ($+1) (no jmp)
01EF:680B C3 ret
01EF:680C BB3400 mov bx,0034
01EF:680F 2BDA sub bx,dx
01EF:6811 83FB2D cmp bx,002D
01EF:6814 720B jc 00006821 ($+b) (down)
01EF:6816 83EB2D sub bx,002D
01EF:6819 D1E3 shl bx,1
01EF:681B 8B8F034A mov cx,[bx+4A03] ds:[4A14]=0E09
01EF:681F EB06 jmp short 00006827 ($+6) (down)
01EF:6821 8A8FD649 mov cl,[bx+49D6] ds:[49E7]=1E37
01EF:6825 32ED xor ch,ch
01EF:6827 A1E43F mov ax,[3FE4] ds:[3FE4]=5574
01EF:682A 03C1 add ax,cx
01EF:682C 2D6F54 sub ax,546F
01EF:682F 8BD8 mov bx,ax
01EF:6831 81C36F56 add bx,566F
01EF:6835 3B1E110E cmp bx,[0E11] ds:[0E11]=FFFF
01EF:6839 7501 jne 0000683C ($+1) (down)
01EF:683B C3 ret
01EF:683C 8BD8 mov bx,ax
01EF:683E B500 mov ch,00
01EF:6840 3D1A00 cmp ax,001A
01EF:6843 7207 jc 0000684C ($+7) (down)
01EF:6845 2D1A00 sub ax,001A
01EF:6848 FEC5 inc ch
01EF:684A EBF4 jmp short 00006840 ($-c) (up)
01EF:684C 8AC8 mov cl,al
01EF:684E 8A876F54 mov al,[bx+546F] ds:[AC1A]=0200
01EF:6852 243F and al,3F
01EF:6854 7501 jne 00006857 ($+1) (down)
01EF:6856 C3 ret
01EF:6857 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:685C 7503 jne 00006861 ($+3) (down)
01EF:685E EB11 jmp short 00006871 ($+11) (down)
01EF:6860 90 nop
01EF:6861 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:6866 7501 jne 00006869 ($+1) (down)
01EF:6868 C3 ret
01EF:6869 80BF6F5840 cmp byte [bx+586F],40 ds:[B01A]=0101
01EF:686E 7201 jc 00006871 ($+1) (down)
01EF:6870 C3 ret
01EF:6871 8BD1 mov dx,cx
01EF:6873 51 push cx
01EF:6874 E810AA call 00001287 ($-55f0)
01EF:6877 59 pop cx
01EF:6878 0AC0 or al,al
01EF:687A 7401 je 0000687D ($+1) (down)
01EF:687C C3 ret
01EF:687D 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:6881 880EF03F mov [3FF0],cl ds:[3FF0]=0000
01EF:6885 882EF13F mov [3FF1],ch ds:[3FF1]=0000
01EF:6889 8A4501 mov al,[di+01] ds:[3913]=0000
01EF:688C A2EE3F mov [3FEE],al ds:[3FEE]=0000
01EF:688F A2F53F mov [3FF5],al ds:[3FF5]=0C02
01EF:6892 8A4502 mov al,[di+02] ds:[4665]=200C
01EF:6895 A2EF3F mov [3FEF],al ds:[3FEF]=040C
01EF:6898 A2F63F mov [3FF6],al ds:[3FF6]=000C
01EF:689B E80EC5 call 00002DAC ($-3af2)
01EF:689E 803EC83F00 cmp byte [3FC8],00 ds:[3FC8]=0000
01EF:68A3 7501 jne 000068A6 ($+1) (no jmp)
01EF:68A5 C3 ret
01EF:68A6 BB1340 mov bx,4013
01EF:68A9 891ECC3F mov [3FCC],bx ds:[3FCC]=0000
01EF:68AD C3 ret

01EF:2DAC A0EE3F mov al,[3FEE] ds:[3FEE]=0000
01EF:2DAF 2A06F03F sub al,[3FF0] ds:[3FF0]=1515
01EF:2DB3 7902 jns 00002DB7 ($+2) (no jmp)
01EF:2DB5 F6D8 neg al
01EF:2DB7 8A26EF3F mov ah,[3FEF] ds:[3FEF]=1500
01EF:2DBB 2A26F13F sub ah,[3FF1] ds:[3FF1]=3915
01EF:2DBF 7902 jns 00002DC3 ($+2) (no jmp)
01EF:2DC1 F6DC neg ah
01EF:2DC3 02C4 add al,ah
01EF:2DC5 A2E937 mov [37E9],al ds:[37E9]=3737
01EF:2DC8 A09C3F mov al,[3F9C] ds:[3F9C]=3A3A
01EF:2DCB 32E4 xor ah,ah
01EF:2DCD A3F93F mov [3FF9],ax ds:[3FF9]=3F3E
01EF:2DD0 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=3A3A
01EF:2DD5 C606C83F00 mov byte [3FC8],00 ds:[3FC8]=1515
01EF:2DDA C706F33F0000 mov word [3FF3],0000 ds:[3FF3]=1515
01EF:2DE0 C706CC3F0000 mov word [3FCC],0000 ds:[3FCC]=3B3C

Starting from memory location 0B6B:0A0E the subsequent 512 bytes are set to 1A1A x100h (256 times) by this function:
01EF:2DE6 BF0E0A mov di,0A0E
01EF:2DE9 B90001 mov cx,0100
01EF:2DEC 50 push ax
01EF:2DED B86B0B mov ax,0B6B
01EF:2DF0 8EC0 mov es,ax
01EF:2DF2 58 pop ax
01EF:2DF3 B81A1A mov ax,1A1A
01EF:2DF6 F3AB repe stosw

The code then creates a map with all possible paths of the hero:
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 07 08 09 -- 09 08
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 06 09 0A 09 08 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 05 0A 0B 0A 09 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 04 0B -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 02 01 02 01 02 03 04
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 02 -- -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 03 -- -- -- -- 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 04 -- -- -- -- 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

01EF:2DF8 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:2DFC EB74 jmp short 00002E72 ($+74) (down)
01EF:2DFE 90 nop
01EF:2DFF A0F23F mov al,[3FF2] ds:[3FF2]=0000
01EF:2E02 8B1EF33F mov bx,[3FF3] ds:[3FF3]=0000
01EF:2E06 8887FB3F mov [bx+3FFB],al ds:[411D]=0050
01EF:2E0A 43 inc bx
01EF:2E0B 3B1EF93F cmp bx,[3FF9] ds:[3FF9]=0009
01EF:2E0F 7601 jbe 00002E12 ($+1) (no jmp)
01EF:2E11 C3 ret
01EF:2E12 891EF33F mov [3FF3],bx ds:[3FF3]=0001
01EF:2E16 8A26F93F mov ah,[3FF9] ds:[3FF9]=0009
01EF:2E1A 2AE3 sub ah,bl
01EF:2E1C A0F03F mov al,[3FF0] ds:[3FF0]=0B04
01EF:2E1F 2A06F53F sub al,[3FF5] ds:[3FF5]=0B04
01EF:2E23 7902 jns 00002E27 ($+2) (down)
01EF:2E25 F6D8 neg al
01EF:2E27 3AC4 cmp al,ah
01EF:2E29 7603 jbe 00002E2E ($+3) (down)
01EF:2E2B E98400 jmp 00002EB2 ($+84) (down)
01EF:2E2E A0F13F mov al,[3FF1] ds:[3FF1]=000B
01EF:2E31 2A06F63F sub al,[3FF6] ds:[3FF6]=000B
01EF:2E35 7902 jns 00002E39 ($+2) (down)
01EF:2E37 F6D8 neg al
01EF:2E39 3AC4 cmp al,ah
01EF:2E3B 7775 ja 00002EB2 ($+75) (no jmp)
01EF:2E3D E87700 call 00002EB7 ($+77)
01EF:2E40 7270 jc 00002EB2 ($+70) (no jmp)
01EF:2E42 3E885E00 mov ds:[bp],bl ds:[007A]=0002
01EF:2E46 A0F53F mov al,[3FF5] ds:[3FF5]=0B04
01EF:2E49 3A06F03F cmp al,[3FF0] ds:[3FF0]=0B04
01EF:2E4D 7523 jne 00002E72 ($+23) (no jmp)
01EF:2E4F A0F63F mov al,[3FF6] ds:[3FF6]=000B
01EF:2E52 3A06F13F cmp al,[3FF1] ds:[3FF1]=000B
01EF:2E56 751A jne 00002E72 ($+1a) (no jmp)
01EF:2E58 881EC83F mov [3FC8],bl ds:[3FC8]=0000
01EF:2E5C 57 push di
01EF:2E5D BF1340 mov di,4013
01EF:2E60 BEFB3F mov si,3FFB
01EF:2E63 8A0EC83F mov cl,[3FC8] ds:[3FC8]=0000
01EF:2E67 32ED xor ch,ch
01EF:2E69 890EF93F mov [3FF9],cx ds:[3FF9]=0001
01EF:2E6D F3A4 repe movsb
01EF:2E6F 5F pop di
01EF:2E70 EB40 jmp short 00002EB2 ($+40) (down)
01EF:2E72 C606F23F00 mov byte [3FF2],00 ds:[3FF2]=0100
01EF:2E77 FE0EF63F dec byte [3FF6] ds:[3FF6]=000B

part of 2DF8 routine this writes the temporary math:
01EF:2E7B E881FF call 00002DFF ($-7f) <-- call itself again
01EF:2E7E FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E82 C606F23F01 mov byte [3FF2],01 ds:[3FF2]=0000
01EF:2E87 FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2E8B E871FF call 00002DFF ($-8f) <-- call itself again
01EF:2E8E FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2E92 C606F23F02 mov byte [3FF2],02 ds:[3FF2]=0000
01EF:2E97 FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E9B E861FF call 00002DFF ($-9f) <-- call itself again
01EF:2E9E FE0EF63F dec byte [3FF6] ds:[3FF6]=000B
01EF:2EA2 C606F23F03 mov byte [3FF2],03 ds:[3FF2]=0000
01EF:2EA7 FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2EAB E851FF call 00002DFF ($-af) <-- call itself again
01EF:2EAE FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2EB2 FF0EF33F dec word [3FF3] ds:[3FF3]=0000
01EF:2EB6 C3 ret

== Notable Memory locations for hero's and monster's movement ==

3F92 = CURRENT QUEST
3F93 = Hero's current tile (see tilemap below)
3F94 = ACTIVE HERO'S ROOM

3F99 =
3F9A = END TURN FLAG
3F9B = action performed?
3F9C = REMAINING STEPS
3F9D =
3F9E =
3F9F = MONSTER'S X position
3FA0 = MONSTER'S Y position
3FA1 = Horizontal distance Monster-hero
3FA2 = Vertical distance Monster-hero
3FA3-3FA4 (word) = next monster's step (see 40A2)
3FA5 = HERO'S X position
3FA6 = HERO'S Y position
3FA7 = Active hero
3FA8 = LOS 00=start 01=blocked 02=free
3FA9 = steps to take to reach the hero?
3FB5 = Target Hero ID (FF=Monster)
3FB9 = current total defense dice of the active hero during DEFENSE
3FC5 = Quest specific hero counter (usually identical to 3FC6) modified by 26E8 call
3FC5 = hero counter (complementar) 1111 = 0F = all heroes OUT modified by 26E2 call

3FD0 = WORD map ID (temporary for the quest) offset of ATTACKED monster in map memory (586F)
3FD2 = BYTE rolled skulls (by monsters or heroes)
3FD3 = BYTE rolled shields (by monsters or heroes)
3FD4 = WORD monster's profile location (during attacks)
3FD6 = WORD hero's profile location (during attacks)

3FE7 = QUEST specific OBJECTIVE (1=ACCOMPLISHED)

Memory locations for hero's movement (pathfindig)
3FEE = HERO'S X STARTING POSITION
3FEF = HERO'S Y STARTING POSITION
3FF0 = mouse click X position (X stop)
3FF1 = mouse click Y position (Y stop)
3FF2 = 03
3FF3 = FF
3FF4 = FF
3FF5 = HERO'S X POSITION (copy)
3FF6 = HERO'S Y POSITION (copy)
3FF9 = rolled movement
3FFB - 4012 = math locations that varies among 00,01,02,03, at the end every byte is set to 03 (bytes here are never cleared)
4013 -> locations with definitive hero's path (bytes here are never cleared)

hero's directional movement values:
00 = up
01 = right
02 = down
03 = left
The hero's moving animation is then delegated to the main loop routines that starts reading from 4013 till [3FF9].

4097 = infinite actions if set to a number different from 00
402C = Wand of recall extra action 00=no 01=yes
4BBC = location where TRAP special event number is put upon entering the room (FF=Searched)

40A2 = here is stored the path the monster will follow by 607E (?) call. A sequence of words that specify directional movement
00 01 = down
00 FF = up
FF 00 = left
01 00 = right
40CA = last location of the path to follow. (A640 = 2 moves)

Screen tiles layout. The tile under the current hero is saved in [3F93]
/\
/00\
/\ /\
/01\/02\
/\ /\ /\
/03\/04\/05\
/\ /\ /\ /\
/06\/07\/08\/09\
/\ /\ /\ /\ /\
/0A\/0B\/0C\/0D\/0E\
\ /\ /\ /\ /\ /\
\/0F\/10\/11\/12\/13\
\ /\ /\ /\ /\ /
\/14\/15\/16\/17\/
\ /\ /\ /\ /
\/18\/19\/1A\/
\ /\ /\ /
\/1B\/1C\/
\ /\ /
\/1D\/
\ /
\/

The hero's moving animation is delegated to the in-game main loop routines.

= [DATA SEGMENT] Main Pointers =

The file inside the exe that represents the Data Segment (every byte that is not strictly CODE) starts at offset '''0x9BE0'''. Every pointer is relative to this address. 

== Heroes' default profiles ==

offset mem pointer BP MP EQ AD DD ID
0xE243 0B6B:4663 00 00 00 00 00 00 08 02 1D 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00 00 00 Barbarian
0xE25D 0B6B:467D 00 00 00 00 00 00 07 03 32 00 00 00 00 00 00 80 00 00 00 00 02 02 00 00 00 01 Dwarf
0xE277 0B6B:4697 00 00 00 00 00 00 06 04 35 00 00 00 00 00 00 00 00 00 00 00 02 02 00 00 00 02 Elf
0xE291 0B6B:46B1 00 00 00 00 00 00 04 06 4A 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 03 Wizard
0xE2AB 0B6B:46CB 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 04 Ragnar

The byte positions are the same of [[HeroQuest Savegame Format]]. Load and save operations read and write at these addreses.

When initializing the heroes the default values are resetted by the function 01EF:78D3 that resets all values to zero and Body and Mind points to default
0x00DF74 0B6B:4394 08 07 06 04 02 Default Body point values (last one is Ragnar's)
0x0148FB 0B6B:AD1B 02 03 04 06 00 Default Mind point values

Character initialization code:
01EF:78D3 8A1E9E40 mov bl,[409E] ds:[409E]=0002
01EF:78D7 B700 mov bh,00
01EF:78D9 8B879443 mov ax,[bx+4394] ds:[4396]=0406
01EF:78DD 884406 mov [si+06],al ds:[469D]=0406 <-- sets default body points
01EF:78E0 8A871BAD mov al,[bx-52E5] ds:[FFFFAD1D]=EC8B
01EF:78E4 884407 mov [si+07],al ds:[469E]=3804 <-- sets default mind points
01EF:78E7 C6440E00 mov byte [si+0E],00 ds:[46A5]=0000 <-- resets Owned weapon
01EF:78EB C6440F00 mov byte [si+0F],00 ds:[46A6]=0000 <-- resets Owned armour
01EF:78EF C6440D00 mov byte [si+0D],00 ds:[46A4]=0000 <-- resets Owned special items
01EF:78F3 C744090000 mov word [si+09],0000 ds:[46A0]=000A <-- resets GOLD
01EF:78F8 C6441100 mov byte [si+11],00 ds:[46A8]=0000 <-- resets Equipped weapon
01EF:78FC C6441200 mov byte [si+12],00 ds:[46A9]=0000 <-- resets Equipped special item
01EF:7900 C6441300 mov byte [si+13],00 ds:[46AA]=0200 <-- resets Equipped armour
01EF:7904 885C19 mov [si+19],bl ds:[46B0]=0002 <-- refresh hero's ID
01EF:7907 803E9E4001 cmp byte [409E],01 ds:[409E]=0002 <-- if dwarf
01EF:790C 7504 jne 00007912 ($+4) (down)
01EF:790E 804C0E80 or byte [si+0E],80 ds:[46A5]=0000 <-- gives him the toolkit
01EF:7912 BB0800 mov bx,0008 <-- "The character is renewed" string
01EF:7915 E8D50F call 000088ED ($+fd5) <-- draws the scroll

== Searched room table ==

The game keeps track of the ''searched'' room by storing the value FF into two tables (treasure and traps searches) using the room number as relative offset (''bx''). 
Room numbers go from 00 to 2A so each table is 2B bytes long and every byte of the table is set to 00 at the beginnng of the quest. 
The code that puts FF into the table: 
mov byte ptr [bx+4B70h], 0FFh [0B6B:4B70] starting address of TREASURE search
mov byte ptr [bx+4B9Bh], 0FFh [0B6B:4B9B] starting address of TRAPS/SECRET PASSAGES search
NOTE: upon starting a quest, every Special event ID is put into these tables replacing the 00.

== Equipment screen ==
With ''position on screen'' is intended the string header 11XXYY

0x014863 Hero's classes label (ie. Barbarian) position on screen
0x00DF2B pointers block to default Hero's classes (5 pointers)
0x00DF35 default Hero's classes labels (5 Labels)

0x014873 Hero's name label (ie. Sigmar) position on screen
0x00E1B7 pointers block to default Hero's names
0x00E1C5 default Hero's names labels (5 Labels)

0x0141A4 first epilogue panel text (its pointer '''A5C4''' is written inside the code at offset 0x0649)
0x0143A2 second epilogue panel text (its pointer '''A7C2''' is written inside the code at offset 0x0658)

0x0147F7 actual gear prices (hexadecimal) - 4x12 = 30 Bytes (2 bytes for equipment bit mask and 2 bytes for default price, little endian)
0x01482B pointers block to single gear costs - 2xC = 18 Bytes
0x014843 price (in decimal) labels - 1F Bytes

0x01486F "GOLD" label position on screen
0x014867 gold amount position on screen (default is 0000)
0x014877 equipment names position on screen
0x01487B pointers block to the pointers in [language].bin where the item names are - 0x18 Bytes

== Various ==
Every WORD offsets are hexadecimal, little endian values.

0x00CDF3: Game font (2F0h bytes long). 8x8 - 94 chars, can be edited with Nyerguds' Westwood font editor.

0x00DCB5: Sequence of 20 bytes (4 groups of 5 bytes) with facing codes of the heroe's sprites in the 4 directions (S-E-W-N).
0x00DCC9: 4 words for sprite direction codification FF00=South ecc..
0x00DF95: Sequence of 11 groups of 4 bytes used for teleportation in "castle of mistery" quest (Room, X, Y, door direction that could be 00,01,1A)
0x00DFDC: Sequence of 21 groups of 3 words used to define furniture (first word: X,Y dimension of the frame - second word: Y,X offset in pixels from the origin tile - third word: offset of the frame in FURN.VGA)
0x00E05B: Group of 4 offsets for the walls graphics in graphics.vga (2 wariations of the left wall and 2 of the right wall).
0x00E062: 26 bytes (00 or 01) used for wall variations based on ROOM tile position number (see diamond scheme above). Basically each position has its own fixed wall texture that is displayed only if a wall is present.
0x00E3E6: List of 28 (1Ch) Groups of 5 bytes each representing Movement (BYTE), Attack (BYTE), Defense (BYTE) and Death special event offset (WORD) of each monster (00-1B).
0x00E8E8: 32 pointers (words) to the monster profiles in game.
0x00E92A: Monster's profiles location. Monsters are numbered in-game from 00 to 20h (maximum) and profiles (10 bytes) are stored starting from here (0x4D4A in memory).
0x00ED28: Sequence of 256 BYTES used as index for drawing the 2D map walls, listing all possible states of wall and doors (values from 00 to FF that refer to the graphic slot IDs inside MAPS.VGA).
0x00F64F: List of 12 pointers to magic spells specific routines into code segment.
0x00F669: List of 30 pointers to special events specific routines into code segment.
0x00F6A5: List of 30 pointers to monster's profiles location in memory (each pointer is 1A from the other).
0x00F703: VGA Palette - 300h bytes as RGB 256 colours
0x00FB9D: Position on screen of the object's name in 2D map (monsters, furniture, heroes etc...)

0x013CDD: List of 31 (words) offsets of the HEROES frame animation (attack, defense, death) in MEN.VGA
0x013D1B: List of 31 (words) frame dimensions (X,Y) of the previous corresponding frames in MEN.VGA
0x013D59: List of 31 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the previous corresponding frames in MEN.VGA
0x013D97: List of 8 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the monster animation frames in MONSTERS.VGA
0x014125: Sequence of 42 offsets (84 bytes) to the tile graphic of the rooms and corridors of isometric map (01-13 points all to 1F80, the tile for the corridors)
0x014179: Sequence of 2A bytes that are indexes of the tile graphic of the rooms and corridors of 2D map (01-13 are all 01, the index tile for the corridors)

0x014920: position on screen of a bar filled with 20h char used to delete the equipment names while moving the mouse over the icons
0x014924: Text colour (1F is white)
0x014925: Background colour (14 is transparent)
0x014943: equipment names position on screen during a quest (the subsequent 28 zeroes are the placeholder)

0x014A42: Sequence of 7 pointers in language.bin of the potion effect texts
0x00E472: Sequence of 5 pointers in language.bin of the potion finding texts (all but holy water and heroic brew, that has direct pointers inside the code)
0x00E4FE: Sequence of 1Ch pointers in language.bin of the monsters names (2D map)
0x00E536: Sequence of 30h index in maps.vga that assign names of the object (01=fallen rock, 00=all traps or hidden objects with no name, 03=Stairs) in OBJECT BLOCK order.
0x00E566: 23h bitmasks that define which object is passable by projectiles
0x00EE2D: Offsets (12) sequence of object icons in maps.vga (from ID 30 to 3B, 00D1 = fallen rock, goblin) 00D1
0x00EE45: Offsets sequence of monster's icons in maps.vga (ID 00 = 40D3 = goblin)

== Intro Sequence ==
Every text panel of the intro resides into '''INTRO.EXE''' and they're in English only. 
In order to translate them (or change the lenght of the text) you have to uncompress the exe first, then Locate every pointers of each panel. 
The data segment inside the exe starts at '''0x01C0'''. Every pointer is relative to this address. 

{|class="wikitable"
! Panel # !! default pointer value !! pointer exe offset
|-
| 1 || 0603 || 0x0212
|-
| 2 || F203 || 0x0214
|-
| 3 || 9B04 || 0x0216
|-
| 4 || 8706 || 0x0218
|-
| 5 || 7008 || 0x021A
|-
| 6 || CA0A || 0x021C
|}
The panels layout follows the same rules described under [[HeroQuest Strings Format]]

0x001675 Game font, this is the exact copy of the font in quest.exe (See various offests section above).

= Protection screen =
to restore shield protection in UNCOMPRESSED QUEST.EXE modify
offset 0x0541 from 90 90 90 to E8 DC FE (if you modify these bytes only the shield screen stays and regardless of page entered the game starts anyway)
offset 0x0549 from EB to 74

HeroQuest Quest Format

2026-06-15T20:43:52Z

Theruler: /* Monster Types */

{{Map Infobox
| Type = 2D cell-based
| Layers = N/A
| Cell dimensions = 26×19 (isometric)
| Cell viewport = max 6×5 (one single room)
| Viewport = 320×200
| Games =
{{Game|HeroQuest}}
}}

This page describes the mapping of the QUEST##.BIN files in [[HeroQuest]], which are used to describe one mission level. These files contain everything that is needed to generate a quest. The maps of the game, like in the board game, are always laid out as 26×19 squares.

In theory, with this information, it could be possible to create a mission editor for the game. The only known restrictions are to stick with the Special events list, since it is hard-coded, and that no new missions can be added (at the moment) to the 2-page in-game list. So to add missions, you need to overwrite the original quests. Since the second page is for the "Return of the Witch Lord" expansion, a new expansion (fan made, or based on official expansions like "Kellar's Keep") could be added as patch.

== Format quirks ==

* The game crashes if the file exceeds 2760h (10KB) in length.
* Some special event are hard coded in the engine, based on the quest number, and cannot be changed in the file.

== Overall structure ==

The overall structure of the file is the following:

{|class="wikitable"
!Offset!!Description & Notes
|-
| 0x000 || Map layer for rooms layout
|-
| 0x200 || Map layer for walls layout
|-
| 0x400 || Hero positions for all four heroes
|-
| 0x40C || Special Events per room for treasures
|-
| 0x437 || Special Events per room for traps and hidden doors
|-
| 0x462 || Population block, with Monsters, Objects and Quest Text
|}

The following sections will describe each of these in detail.

== Map Layers ==

The file starts with two layers specifying different properties of the same map tiles; first the rooms layout, then the walls layout, with each block using one byte per tile. These blocks only need 26*19 bytes to contain all their data, but are padded to blocks of 0x200 bytes each.

=== Rooms Layout ===

This block starts at the beginning of the file. The rooms layout determines which area on the map is part of which room. Since the game is limited to showing rooms with a maximum dimension of 6x5, all paths are chopped up into different 'rooms' as well. Rooms have numbers from 0 to 42. A value of 0 means the room is not used. Rooms 1 to 20 (0x14) are the pathways. The remaining range, from 21 to 42 (0x15 to 0x2A), are the main rooms.

The default rooms layout with coordinates:

<pre>
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19

00 01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
02 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
03 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
04 01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
05 06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 18 18 18 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
07 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
08 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
09 06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0A 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0B 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0C 0B 20 20 20 20 21 21 22 22 0C 0D 0D 0D 0D 0D 0D 0E 23 23 23 23 24 24 24 24 0F
0D 0B 20 20 20 20 26 26 26 26 27 27 27 0D 0D 28 28 28 28 23 23 23 24 24 24 24 0F
0E 0B 25 25 25 25 26 26 26 26 27 27 27 0D 0D 28 28 28 28 29 29 29 2A 2A 2A 2A 0F
0F 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
10 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
11 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
12 10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

The game only seems to accept 32 different rooms on one quest map. If a map exceeds this amount, the higher ones after 32 are used are displayed on the overhead map, and you can enter them, but no tiles are displayed. This is probably an engine limitation. Because of this, any inaccessible areas in the quest map are cleared to room 0. The numbers of the used rooms don't need to be consecutive, though, so the actual layout of the numbers is generally not changed. The few changes to room layout definitions that exist in the files all seem to be map errors. Some maps do have corridors that are shortened because of an obstruction, and in such cases the room type is generally also cleared to cut it off at that point.

Example of the first level, "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout. You can see that room 0x12 was cut off towards the north.

<pre>
01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 -- -- -- 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- -- -- -- -- 0D 0D 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 26 26 26 26 -- -- -- -- -- 28 28 28 28 23 23 23 -- -- -- -- 0F
0B -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 0F
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

=== Walls Layout ===

This block starts at offset 0x200, and, like the room IDs, is one byte per tile. The values determine the walls around each tile, any doors set in them, and any special properties of these walls or doors. South and East walls and doors are not defined, since you can get the same effect by placing a North or West ones in the adjacent room, and the southern and eastern border of the entire map are automatically walls.

Note that the perspective is isometric, so only the west (top left) and north (top right) walls are visible while playing. Because of this, some maps have errors where there are missing walls on openings that seem to lead to unused areas with room ID 00 when going to the east or south. In reality, the game will never indicate openings towards room 00 as passable, so the lack of wall makes no difference.

Each byte in this block is made up of bit flags that can be combined. However, these bits are not just settings interpreted by the code; the full value made up of these bits also creates the index used to look up the corresponding sprite graphics. Because of this, the unused bit 0x02 can be used to mod alternate graphics into wall tiles, even if it has no real meaning to the game. Here are the meanings of each separate bit:

{|class="wikitable"
! Bin value !! Hex Value !! Effect
|-
| 00000000 || 0x00 || None
|-
| 00000001 || 0x01 || Do not draw this wall. Doors show up as a frame only. This is done with walls when the area goes around a corner behind the walls, to prevent them from overlapping the floor tiles.
|-
| 00000010 || 0x02 || Not used (only appears once in Quest 3) can be used in conjunction with 4th bit to change graphic for opened secret door
|-
| 00000100 || 0x04 || The door is Open (can't be applied if secret)
|-
| 00001000 || 0x08 || The door is Secret (can't be applied if open)
|-
| 00010000 || 0x10 || Door to the West
|-
| 00100000 || 0x20 || Door to the North
|-
| 01000000 || 0x40 || Wall to the West
|-
| 10000000 || 0x80 || Wall to the North
|}

Example of the first level "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout:

<pre>
C0 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80
40 C0 80 80 80 C0 80 80 80 C0 20 80 41 -- C0 80 80 80 80 80 80 80 80 80 80 41
40 40 -- -- -- 40 -- -- -- 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 10 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 C0 80 80 80 C0 80 80 80 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 18 -- -- 40 -- 40 -- -- C0 80 80 80 90 80 80 80 40
40 40 -- -- -- 10 -- -- -- C0 80 80 -- -- 81 81 80 40 -- -- -- 40 -- -- -- 10
40 40 -- -- -- 40 -- -- -- 40 C0 80 80 80 80 80 40 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 40 -- -- -- -- -- 40 40 -- -- -- 40 -- -- -- 40
40 81 81 29 80 80 80 80 80 -- 10 -- -- -- -- -- 10 81 81 21 81 81 80 80 80 00
40 C0 80 80 80 68 80 C0 80 C0 40 -- -- -- -- -- 40 C0 80 80 20 C0 80 80 80 40
40 40 -- -- -- 40 -- 10 -- 40 40 -- -- -- -- -- 40 18 -- -- -- 40 -- -- -- 40
40 10 -- -- -- 40 -- 40 -- 40 80 80 80 80 C0 80 -- 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 60 80 80 80 40 -- -- -- -- C0 80 80 20 41 -- -- 40 -- -- -- 40
40 C0 80 80 80 40 -- -- -- 40 -- -- -- -- 40 -- -- -- C0 80 80 -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 81 81 81 80 80 20 80 80 80 80 80 80 80 80 20 80 80 80 80 80 80 80 80 80 00
</pre>

Visualised as image, you get this:

[[File:HeroQuest-Quest1.png|624px]]

Different rooms are indicated in different colours, with shades of grey used for the corridor 'rooms', and the room 0 (disabled) areas indicated in black. Doors are shown as white, secret doors as purple, drawn walls as dark red, and walls with the draw-suppression bit enabled are orange. To show the whole grid structure,
walls that are not enabled at all are indicated as dark purple.

== Hero Positions ==

At 0x400, after the two map layers, starts the hero positioning info. This gives the following structure for each hero:

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT8]]||HeroX||Cell position X-coordinate of the barbarian
|-
|0x01||[[UINT8]]||HeroY||Cell position Y-coordinate of the barbarian
|-
|0x02||[[UINT8]]||HeroFacing|| Animation frame for the hero, determining the facing.
|}

This structure occurs four times, in this order: Barbarian, Dwarf, Elf, Wizard.

This table gives the facing frames for each hero:

{|class="wikitable"
!Hero!!North!!East!!South!!West
|-
| Barbarian || 0x23 || 0x1D || 0x20 || 0x26
|-
| Dwarf || 0x2F || 0x29 || 0x2C || 0x32
|-
| Elf || 0x3B || 0x35 || 0x38 || 0x3E
|-
| Wizard || 0x47 || 0x41 || 0x44 || 0x4A
|}

== Special Events ==

The next sections, starting at 0x040C, are the Special Events. There are two of these: one for treasure searching (at 0x040C), and one for searching for traps and hidden doors (at 0x0437). They each take up 43 bytes, one for each of the room numbers specified in the [[#Rooms Layout|Rooms Layout]]. The lists seem to include the unused room 0.

The list of special events:

{|class="wikitable"
!Hex ID !! Dec ID !! Where !! Event
|-
| 0x00 || 00 || None || No event.
|-
| 0x01 || 01 || Chest || Trapped, you disarm it
|-
| 0x02 || 02 || Chest || Trapped, -1 body point
|-
| 0x03 || 03 || Cupboard || 30 coins + potion of healing
|-
| 0x04 || 04 || Chest || Trapped, -1 body point, +100 coins
|-
| 0x05 || 05 || Weapon rack || Spear
|-
| 0x06 || 06 || Chest || 50 coins + potion of healing
|-
| 0x07 || 07 || Chest || 250 coins of prince magnus, the weight slows you
|-
| 0x08 || 08 || Throne || Melar's key
|-
| 0x09 || 09 || Generic || Talisman of lore
|-
| 0x0A || 10 || Generic || Borin's armour
|-
| 0x0B || 11 || Chest || Karlen's 200 coins
|-
| 0x0C || 12 || Chest || 150 coins + wand of recall
|-
| 0x0D || 13 || Chest || 100 coins (and the chest vanishes)
|-
| 0x0E || 14 || Generic || Shield
|-
| 0x0F || 15 || Chest || Trapped, beware
|-
| 0x10 || 16 || Chest || Trapped, gargoyle awakes
|-
| 0x11 || 17 || Generic || Spirit blade
|-
| 0x12 || 18 || Chest || 200 coins
|-
| 0x13 || 19 || Chest || 200 coins
|-
| 0x14 || 20 || Chest || 300 coins
|-
| 0x15 || 21 || Chest || 100 coins + potion of healing
|-
| 0x16 || 22 || Chest || Trapped, -1 body point
|-
| 0x17 || 23 || Chest || Trapped, you disarm it
|-
| 0x18 || 24 || Table || Agrain's keys (100 coins)
|-
| 0x19 || 25 || 2 Chests || 200 coins x2
|-
| 0x1A || 26 || Chest || 350 coins
|-
| 0x1B || 27 || Chest || 250 coins
|-
| 0x1C || 28 || Throne || 500 coins
|-
| 0x1D || 29 || Chest || Potion of healing
|-
| 0x1E || 30 || Generic || Mine entrance + 5000 coins, cannot attack (Coins are fake only in the "Castle of Mystery" mission)
|}

For example, in QUEST17.BIN, the (hexadecimal) event contents are the following. Again, 00 bytes have been replaced by "--" to more clearly show the data.
<pre>
Room ID: 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A
Treasure -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- -- -- -- -- --
Traps -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 17 -- -- -- -- -- -- -- -- --
</pre>

== Population ==

The population block, starting at 0x462, takes up the rest of the file. It has a header that specifies for each section where the data can be found. All pointers in this section are relative to the start of the population block.

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT16LE]]||TextBlockStart||Relative pointer to where the [[#Quest Text Block|Quest Text Block]] starts. This is normally put at the end of the file.
|-
|0x02||[[UINT16LE]]||TextBlockSize||Size of the text block.
|-
|0x04||[[UINT16LE]]||MonstersBlockStart||Relative pointer to the [[#Monsters Block|Monsters Block]]. Each block is 10 bytes. This is normally put directly behind this header, at offset 0C.
|-
|0x06||[[UINT16LE]]||MonstersBlockSize||Size of the Monsters block. Divide by 10 to get the amount of monsters.
|-
|0x08||[[UINT16LE]]||ObjectsBlockStart||Relative pointer to the [[#Objects Block|Objects Block]].
|-
|0x0A||[[UINT16LE]]||NrOfObjects||Number of objects in the Objects Block.
|}

After this come the sections, normally in the following order:

* Monsters Block
* Objects block
* Quest Text Block
* A padding 0x00 byte. This is sometimes two bytes. Might be needed to serve as end of the last text item.

=== Monsters Block ===

Typically starts at offset 0x46E. Each monster block takes 10 bytes. The length of the full block is specified in the header in <tt>MonstersBlockSize</tt>. Divide it by 10 to know the amount of monsters.

The maximum amount of monsters the game can handle is 32, so that's most likely also the maximum amount that can be stored in this block.

==== Monster Layout ====

The monster layout is the following:

{|class="wikitable" style="width: 100%"
!Offset!!Data type!!Description & Notes
|-
| style="width:70px" | 00
| style="width:70px" | [[UINT8]]
|| Seems to be a set of bit flags. It apparently needs to be 0x81 to have a properly functioning monster. If it is set to 0x00, the monster does not appear on the map at all. If it is set to just 0x80 or just 0x01, the monster can't be attacked except by spells. Only the Death Mist on Quest 17 uses value 0x01, but its special scripted code means it can not be interacted with at all.
|-
| 01 || [[UINT8]] || X starting position, from 0x00 to 0x19. Changes during the game as the monster moves.
|-
| 02 || [[UINT8]] || Y starting position, from 0x00 to 0x12. Changes during the game as the monster moves.
|-
| 03 || [[UINT8]] || ''Placeholder'' for Monsters's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 04 || [[UINT16LE]] || ''Placeholder'' for Memory location of Monster's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 06 || [[UINT8]] || Monster condition bits, including spell effects. 0x00 = dead, 0x01 = alive, 0x02 = tempest, 0x04 = sleep. The Death Mist on Quest 17 has the highest bit (0x80) enabled.
|-
| 07 || [[UINT8]] || Higher 4 bits are for the Body points, and the lower 4 are for the Mind points, i.e. 0x13 = 1 BP, 3 MP. Changing BP doesn't affect the game though.
|-
| 08 || [[UINT8]] || Shown monster type; see monster types table below. This determines the graphics and name of the monster.
|-
| 09 || [[UINT8]] || Monster type stats; see monster types table below. This determines the Attack and Defense of the monster. This usually uses the same type as what it is shown as, but it can be changed to make the monster weaker or stronger than a monster of that type normally is. This also changes the Death Event of the monster.
|}

The first monster in the list is used as the "wandering monster" that might show up when you search a room. Its first byte is usually put to 0, so it won't show up on the map and acts purely as wandering monster template. However, it is perfectly possible to have a monster both serve as wandering monster ''and'' appear as physical entity on the map.

==== Monster Types ====

The list of monster types can be divided into four ranges:

* The 00-0C range are the normal monsters.
* The 0D-13 range are special monsters only referenced in QUEST11.BIN. These are not actually used as monsters in Quest 11, but their stats are applied to the normal monsters by putting them in the "monster type stats" field. The stats themselves are actually unchanged, but this also makes them use the special death event of these new types, triggering the quest's gold reward. The Witch Lord from this range is not used.
* The 14-1B range contains the new monsters from the expansion.
* The last monster (1B), is a dummy entry containing a copy of the Orc, which is never used.

As indicated in the previous section, the Body and Mind points can be individually changed in the monsters' profiles in each QUESTXX.BIN file. The Movement, Attack, Defense and Death special event offset listed here are hardcoded in [[HeroQuest EXE File|QUEST.EXE]].

{|class="wikitable" style="width: 100%"
! Hex ID !! Dec ID !! Monster !! Graphic !! Body !! Mind !! Movement !! Attack !! Defense !! Death special event
|-
| 0x00 || 00 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 0000
|-
| 0x01 || 01 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 0000
|-
| 0x02 || 02 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 0000
|-
| 0x03 || 03 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 0000
|-
| 0x04 || 04 || Skeleton || Skeleton || 01 || 00 || 06 || 02 || 02 || 0000
|-
| 0x05 || 05 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 0000
|-
| 0x06 || 06 || Mummy || Mummy || 02 || 00 || 04 || 03 || 04 || 0000
|-
| 0x07 || 07 || Gargoyle || Gargoyle || 03 || 04 || 06 || 04 || 04 || 0000
|-
| 0x08 || 08 || Orc Warlord Ulag || Gargoyle || 02 || 03 || 0A || 04 || 05 || 200C
|-
| 0x09 || 09 || Orc Lord Grak || Orc || 03 || 03 || 08 || 04 || 04 || 0000
|-
| 0x0A || 10 || Balur the Fire Mage || Gargoyle || 03 || 07 || 08 || 02 || 05 || 2C0C
|-
| 0x0B || 11 || Stone Chaos Warrior || Gargoyle || 01 || 01 || 01 || 02 || 06 || 0000
|-
| 0x0C || 12 || The Witch Lord || Gargoyle || 04 || 06 || 0A || 05 || 06 || 0000
|-
| 0x0D || 13 || The Witch Lord || Gargoyle || 04 || 06 || 06 || 03 || 05 || 0000
|-
| 0x0E || 14 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 4A0C
|-
| 0x0F || 15 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 520C
|-
| 0x10 || 16 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 7B0C
|-
| 0x11 || 17 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 7B0C
|-
| 0x12 || 18 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 6F0C
|-
| 0x13 || 19 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 820C
|-
| 0x14 || 20 || Spirit Rider || Chaos warrior || 03 || 03 || 08 || 04 || 03 || 0000
|-
| 0x15 || 21 || Death Mist|| No graphics || - || - || 06 || 04 || 03 || 0000
|-
| 0x16 || 22 || Bellthor || Gargoyle || 03 || 03 || 06 || 04 || 06 || B82B
|-
| 0x17 || 23 || Skulmar || Gargoyle || 03|| 04 || 08 || 05 || 06 || 0000
|-
| 0x18 || 24 || Doomguard || Gargoyle || 03 || 03 || 06 || 04 || 06 || 0000
|-
| 0x19 || 25 || Witch Kessandria || Gargoyle || 03 || 04 || 06 || 04 || 06 || 0000
|-
| 0x1A || 26 || The Witch Lord || Gargoyle || 04 || 05 || 0A || 05 || 06 || DC2B
|-
| 0x1B || 27 || Orc || Orc || - || - || 08 || 03 || 02 || 0000
|}

=== Objects Block ===

Each object block takes 3 bytes. The length of the list of objects is specified in the header in <tt>NrOfObjects</tt>. The full block length is <tt>NrOfObjects * 3</tt>.

The object layout is the following:

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| 00 || [[UINT8]] || X position, from 0x00 to 0x19.
|-
| 01 || [[UINT8]] || Y position, from 0x00 to 0x12.
|-
| 02 || [[UINT8]] || Object type; see table below.
|}

Objects appear to be stored in order of their ID, though it is unknown if this is a requirement.

Multi-cell objects are made up of a defining indicator on the north-west origin-cell of the object, and filler objects on the other cells. These fillers are technically invisible objects, but they are important to ensure the entire object is considered impassable by the game. Each type has its own filler type; e.g. the tables in both directions both use the "table filler block". It is important to use the correct type, since this determines the name that shows up when holding your mouse over these cells on the minimap. For example, Quest 5 has an Alchemy Table with Fireplace filler blocks, and the minimap will indeed show the wrong name on all tiles except the top left one. In the list below, these two types are indicated as "Origin" and "Filler" respectively.

The Stairs that indicate the end (and sometimes start) of the Quest map are a special case in this; each of the cells is specifically defined, with its own piece of the graphics.

Here is the full list of known object types. Types indicated with (*) are unused in the game levels, but might exist in-game for other reasons (e.g. sprung traps).

IDs outside the range indicated in this list usually spawn bugged monsters which won't move or attack, and can't be attacked with normal weapons because they are always deemed "out of range".

{|class="wikitable"
! Hex ID !! Dec ID !! Object
|-
| 30 || 48 || Rock
|-
| 31 || 49 || Rock(*)
|-
| 32 || 50 || Pit Trap - Hidden
|-
| 33 || 51 || Pit Trap - Opened(*)
|-
| 34 || 52 || Falling Rock Trap
|-
| 35 || 53 || ?
|-
| 36 || 54 || Spear Trap
|-
| 37 || 55 || Teleport
|-
| 38 || 56 || Stairs Block 1 (NW)
|-
| 39 || 57 || Stairs Block 2 (SW)
|-
| 3A || 58 || Stairs Block 3 (NE)
|-
| 3B || 59 || Stairs Block 4 (SE)
|-
| 3C || 60 || ?
|-
| 3D || 61 || ?
|-
| 3E || 62 || ?
|-
| 3F || 63 || ?
|-
| 40 || 64 || ?
|-
| 41 || 65 || ?
|-
| 42 || 66 || Table (Filler)
|-
| 43 || 67 || ?
|-
| 44 || 68 || Torture Table (Filler)
|-
| 45 || 69 || Tomb (Filler)
|-
| 46 || 70 || Alchemy Table (Filler)
|-
| 47 || 71 || Fireplace (Filler)
|-
| 48 || 72 || Closet (Filler)
|-
| 49 || 73 || Library (Filler)
|-
| 4A || 74 || Armour Rack (Filler)
|-
| 4B || 75 || Table 2x3 (Origin)
|-
| 4C || 76 || Table 3x2 (Origin)
|-
| 4D || 77 || Torture 3x2 (Origin)
|-
| 4E || 78 || Torture 2x3 (Origin)
|-
| 4F || 79 || Alchemy 2x3 (Origin)
|-
| 50 || 80 || Alchemy 3x2 (Origin)
|-
| 51 || 81 || ?
|-
| 52 || 82 || ?
|-
| 53 || 83 || Tomb 3x2 (Origin)
|-
| 54 || 84 || Closet 1x3 (Origin)
|-
| 55 || 85 || Armour Rack 3x1 (Origin)
|-
| 56 || 86 || Library 1x3 (Origin)
|-
| 57 || 87 || Fireplace 3x1 (Origin)
|-
| 58 || 88 || Library 3x1 (Origin)
|-
| 59 || 89 || Fireplace 1x3 (Origin)
|-
| 5A || 90 || Closet 3x1 (Origin)
|-
| 5B || 91 || Armour Rack 1x3 (Origin)
|-
| 5C || 92 || Chest (South)
|-
| 5D || 93 || Chest (East)
|-
| 5E || 94 || Throne (South)
|-
| 5F || 95 || Throne (East)
|}

=== Quest Text Block ===

This block contains the briefing at the start of the Quest. Its X and Y positions are offsets on the scroll on which the text is shown.

The full block consists of any number of text chunks, without any bytes in between the chunks. The 00 byte behind the last text chunk seems to serve as end point. If this 00 byte is not present, the game will ignore the length set in the header and will keep on reading and interpreting text entries. The 00 byte is not included in the text block length in the header.

Each text chunk contained in this block is preceded by a small header consisting of an entry separator value and the X and Y coordinates.

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| [[UINT8]] || Separator || Always 0x11. Is probably used to detect where the previous entry ends.
|-
| [[UINT8]] || Y position || Y position in the scroll's matrix offsets; effectively the line number.
|-
| [[UINT8]] || X position || X position in the scroll's matrix offsets, to nicely center the text.
|}

This header is immediately followed by the text.

== List of Quests ==

The following list contains PC game specific information and differences with the boardgame version of the same quest. Quest 15-24 are from the "Return of the Witch Lord" expansion. All PC maps have a different layout than the boardgame. "Fixed" column refers to the current modding project carried out by [[User:theruler|theruler]] on [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net] (italian).

{|class="wikitable"
! Dec ID !! Hex ID !! Quest name !! Quest specific rules differences with the boardgame !! Fixed
|-
| 01 || 00 || The Maze || ||
|-
| 02 || 01 || The Rescue of Sir Ragnar || <s>The content of the rooms is revealed but the doors remain closed.</s> || Yes
|-
| 03 || 02 || Lair of the Orc Warlord || ||
|-
| 04 || 03 || Prince Magnus' Gold || ||
|-
| 05 || 04 || Melar's Maze || <s>The Stone Gargoyle trap is not implemented</s> || Yes
|-
| 06 || 05 || Legacy of the Orc Warlord || <s>The equipment is correctly removed from the heroes, but they still keep the benefits.</s> || Yes
|-
| 07 || 06 || The Lost Wizard || ||
|-
| 08 || 07 || The Fire Mage || <s>Balurs is a normal monster, doesn't have the ability to use fire magic or escape spell.</s> || Yes
|-
| 09 || 08 || Race Against Time || ||
|-
| 10 || 09 || Castle of Mystery || <s>Wandering monster instead of Ollar's text</s> / <s>inability to drop the mine gold</s> / <s>Only one hero can take the gold</s> / <s>monsters cannot step in front of doors</s> || Yes
|-
| 11 || 0A || Bastion of Chaos || ||
|-
| 12 || 0B || Barak Tor - Barrow of the Witch Lord || <s>The WL has standard movement instead of 1</s> / <s>the fake doors are not present.</s>|| Yes
|-
| 13 || 0C || Quest for the Spirit Blade || <s>The special fallen rock that blocks the backtrack of the heroes is not present.</s> || Yes
|-
| 14 || 0D || Return to Barak Tor || <s>The WL can be killed by magic rather than being totally immune</s> / <s>epilogue text is missing</s> || Yes
|-
| 15 || 0E || The Gate of Doom || <s>The doors do not automatically open upon entering the first room / there are no fake doors.</s> || Yes
|-
| 16 || 0F || The Cold Halls || Spirit raiders are weaker / and scattered on the map instead of inside their tombs || No
|-
| 17 || 10 || The Silent Passages || The Myst cannot be killed / and have a fixed movement of 6 tiles || No
|-
| 18 || 11 || The Halls of Vision || <s>Keys of Agrain are found the very room before the stairs, the mummies are normal monsters and the doors do not disappear.</s> || Yes
|-
| 19 || 12 || The Gate of Bellthor || The Bellthor is a normal monster, start attacking and doesn't wait till the last hero has entered the room, doesn't explode upon death and doesn't drain mind points. The door doesn't disappear || No
|-
| 20 || 13 || Halls of the Dead || <s>All 4 heroes are not captured and start together with all the equipment</s> / <s>WL is not present and doesn't curse the heroes when entering the central room.</s> || Yes
|-
| 21 || 14 || The Forgotten Legion || The legion is not frozen in the central room, but scattered on the map as normal monsters || No
|-
| 22 || 15 || The Forbidden Caverns || <s>There are no random monsters on the Xs</s> / no already opened doors at the beginning || Partial
|-
| 23 || 15 || The Last Gate || Kessandria is a normal monster and does not escape if attacked / doesn't cast spells / <s>is not immune to magic</s> || Partial
|-
| 24 || 17 || The Court of the Witch Lord || <s>Doomguards are normal Chaos warriors</s> / <s>Heroes start in the WL's room instead at the stairs</s> / <s>the WL is affected by all magic not only fire</s> / <s>WL doesn't summon monsters</s> / <s>Stone orcs are normal orcs.</s> || Yes
|}

== Tools ==

{{BeginFileFormatTools|Type=map}}
{{FileFormatTool
| Name = [[Engie File Converter]]
| Platform = Windows
| canView = Yes
| canCreate = No
| canModify = No
| editHidden = No
| editMetadata = N/A
| notes = Visualization only. Cannot edit quests. Shows detailed analysis info.
}}
{{EndFileFormatTools}}

HeroQuest EQUESTS Format

2026-06-10T12:57:25Z

Theruler:

EQUESTS.BIN contains the Quests names in each of the 5 languages.

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Description
|-
|0x000||[[UINT16LE]][10]|| Pointer block to the 10 pages (2 for each language, Page 1 Base quests, Page 2, Expansion quests)
|-
|0x014||[[UINT8]][10]|| First Page Header, contains box info and number of entries
|-
|0x01E||[[UINT8]][03]|| Line start code with coordinates: 11 YY XX
|-
|0x021||[[char]][variable]|| Title of the first quest
|}

All the rest of the lines and pages that follow have the same structure. Only the pointer block is unique.

==Research credits==

* [[user:Theruler|TheRuler]] from the OldGamesItalia translation project mapped the format of the strings files.

HeroQuest EQUESTS Format

2026-06-10T12:54:53Z

Theruler: Created page with "EQUESTS.BIN contains the Quests names in each of the 5 languages. The internal format is the following: {|class="wikitable" !Offset!!Data type!!Description |- |0x000||UINT16LE[10]|| Pointer block to the 10 pages (2 for each language, Page 1 Base quests, Page 2, Expansion quests) |- |0x014||UINT8[10]|| First Page Header, contains box info and number of entries |- |0x01E||UINT8[03]|| Line start code with coordinates: 11 YY XX |- |0x021||char[variable]|| T..."

HeroQuest

2026-06-10T12:40:14Z

Theruler: /* File formats */

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''HeroQuest''' for DOS was developed by [https://www.mobygames.com/company/3546/221b-software-development/ 221b Software Development] and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1991.

It is the earliest computer implementation of the HeroQuest board game published by Milton Bradley Company in association with Games Workshop in 1989 (europe/Australia) and in 1990 (US/Canada), where you take the role of four heroes; a Barbarian, a Dwarf, an Elf and a Mage; and dive deep into the dungeon of the Witch Lord to defeat his army of monsters and finally confront his magic. It consists of 14 quests (the DOS game includes the first expansion with 10 additional quests) where you fight, search for traps or secret passages, and collect special items and gold. Said gold can be spent between missions to buy more powerful equipment.

The base mechanics are mostly the same as the boardgame (moving, attacking, defending, searching, performing magic) with some changes to enhance the gameplay on the new media (see link section).

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://imagej.net/ij/index.html Imagej]
| Platform = Multi
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Java Image editor that can import and export RAW files
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in intro.exe and quest.exe and they have to be manually exported/imported
}}
{{FileFormatTool
| Name = [[Engie File Converter]]
| Platform = Windows
| grp = No
| map = Read
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Quest map viewer
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = QUESTxx.BIN
| Format = [[HeroQuest Quest Format]]
| KnownFormat = Yes
| Desc = Binary files that contains Map, Monster, Traps layouts and Quest mission text
}}
{{GameFile
| Name = [language].BIN
| Format = [[HeroQuest Strings Format]]
| KnownFormat = Yes
| Desc = Binary compressed files with in-game text in five languages (ENGLISH, GERMAN, FRENCH, SPANISH, ITALIAN).
}}
{{GameFile
| Name = EQUESTS.BIN
| Format = [[HeroQuest EQUESTS Format]]
| KnownFormat = Yes
| Desc = Binary file with quest names.
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = QUEST.SAV
| Format = [[HeroQuest Savegame Format]]
| KnownFormat = Yes
| Desc = Savegame file created by QUEST.EXE
}}
{{GameFile
| Name = QUEST.CFG
| Format = [[HeroQuest Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by HERO.EXE
}}
{{GameFile
| Name = *.EXE
| Format = [[HeroQuest EXE File]]
| KnownFormat = Yes
| Desc = QUEST.EXE contains Program-related text and the EPILOGUE, INTRO.EXE contains the INTRO panels text.
}}
{{GameFile
| Name = GAME&FX.RLD
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = GAME&FX.ALB
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.
* [http://forum.yeoldeinn.com/viewtopic.php?t=5588 Comparison forum topic on Ye Olde Inn] with all the gameplay differences between the computer game and the board game, by kurgan.

[[Category:Turn-Based Strategy]]

HeroQuest

2026-06-10T12:38:24Z

Theruler: /* File formats */

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''HeroQuest''' for DOS was developed by [https://www.mobygames.com/company/3546/221b-software-development/ 221b Software Development] and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1991.

It is the earliest computer implementation of the HeroQuest board game published by Milton Bradley Company in association with Games Workshop in 1989 (europe/Australia) and in 1990 (US/Canada), where you take the role of four heroes; a Barbarian, a Dwarf, an Elf and a Mage; and dive deep into the dungeon of the Witch Lord to defeat his army of monsters and finally confront his magic. It consists of 14 quests (the DOS game includes the first expansion with 10 additional quests) where you fight, search for traps or secret passages, and collect special items and gold. Said gold can be spent between missions to buy more powerful equipment.

The base mechanics are mostly the same as the boardgame (moving, attacking, defending, searching, performing magic) with some changes to enhance the gameplay on the new media (see link section).

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://imagej.net/ij/index.html Imagej]
| Platform = Multi
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Java Image editor that can import and export RAW files
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in intro.exe and quest.exe and they have to be manually exported/imported
}}
{{FileFormatTool
| Name = [[Engie File Converter]]
| Platform = Windows
| grp = No
| map = Read
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Quest map viewer
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = QUESTxx.BIN
| Format = [[HeroQuest Quest Format]]
| KnownFormat = Yes
| Desc = Binary files that contains Map, Monster, Traps layouts and Quest mission text
}}
{{GameFile
| Name = [language].BIN
| Format = [[HeroQuest Strings Format]]
| KnownFormat = Yes
| Desc = Binary compressed files with in-game text in five languages (ENGLISH, GERMAN, FRENCH, SPANISH, ITALIAN).
}}
{{GameFile
| Name = EQUESTS.BIN
| Format = [[HeroQuest EQUEST Format]]
| KnownFormat = Yes
| Desc = Binary file with quest names.
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = QUEST.SAV
| Format = [[HeroQuest Savegame Format]]
| KnownFormat = Yes
| Desc = Savegame file created by QUEST.EXE
}}
{{GameFile
| Name = QUEST.CFG
| Format = [[HeroQuest Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by HERO.EXE
}}
{{GameFile
| Name = *.EXE
| Format = [[HeroQuest EXE File]]
| KnownFormat = Yes
| Desc = QUEST.EXE contains Program-related text and the EPILOGUE, INTRO.EXE contains the INTRO panels text.
}}
{{GameFile
| Name = GAME&FX.RLD
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = GAME&FX.ALB
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.
* [http://forum.yeoldeinn.com/viewtopic.php?t=5588 Comparison forum topic on Ye Olde Inn] with all the gameplay differences between the computer game and the board game, by kurgan.

[[Category:Turn-Based Strategy]]

HeroQuest Savegame Format

2026-05-20T18:32:44Z

Theruler: /* Spells cast on HERO */

The QUEST.SAV file in [[HeroQuest]] contains the saved character data. Characters can be saved between quests.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Character names, stats, gold, quest object, inventory. various stats
| Games =
{{Game|HeroQuest}}
}}

== Format ==

The file holds the 8 slots for each of the four characters of the game, split into two sections. The first section are the (in-game editable) names of all the characters, the second half contains all the characters' actual information and inventories.

Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

This is how a default savegame looks like in an hex editor:

[[File:Savegame.jpg|320px]]

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Repeats!!Default value!!Description
|-
|0x000||[[char]][17]||8||SIGMAR||Name of the Barbarian
|-
|0x088||[[char]][17]||8||GRUNGI||Name of the Dwarf
|-
|0x110||[[char]][17]||8||LADRIL||Name of the Elf
|-
|0x198||[[char]][17]||8||ZOLTAR||Name of the Wizard
|-
|0x220||[[BYTE]][26]||8||Zeroes||Inventory of the Barbarian
|-
|0x2F0||[[BYTE]][26]||8||Zeroes||Inventory of the Dwarf
|-
|0x3C0||[[BYTE]][26]||8||Zeroes||Inventory of the Elf
|-
|0x490||[[BYTE]][26]||8||Zeroes||Inventory of the Wizard
|}

== Name sections ==

The names are in typical zero-terminated format, and can be a maximum of 16 characters in length. If a savegame is edited to have data in the remaining name part, it will not be read, and the space will be cleared to zeroes when re-saved.

The name normally only accepts uppercase characters. If lowercase characters are edited into the savegame file, it becomes clear that the lowercase range of the font is used for special accented characters. Some characters in the range are completely empty, but they still offer clickable space.

[[File:HeroQuest_savegame_lowercase_name.png]]

If the first byte in a name is set to a 00 byte, the entry becomes unclickable in the user interface, effectively making it permanently unusable. There is a bug in the game where this can occur when you change the name of a character and confirm without filling in anything, and then save the character data.

== Inventory sections ==

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="4"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BAR!!style=width:2em|DWA!!style=width:2em|ELF!!style=width:2em|WIZ
|-
| 0x00 || [[BYTE]]||00||00||00||00||Character game status: 00=in menu FF=in quest
|-
| 0x01 || [[UINT8]][2]||0000||0000||0000||0000||''Placeholder'' for Hero's position on the map XXYY. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x03 || [[UINT8]]||00||00||00||00||''Placeholder'' for Hero's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x04 || [[UINT16LE]]||0000||0000||0000||0000||''Placeholder'' for Memory location of Hero's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 0x06 || [[UINT8]]||08||07||06||04||Body points, 0-9 shows a figure, higher values work but the game shows the rest of the fonts.
|-
| 0x07 || [[UINT8]]||02||03||04||06||Mind points, same as above.
|-
| 0x08 || [[UINT8]]||26||2C||38||44||''Placeholder'' for Hero's facing sprite. See [[HeroQuest Quest Format#Hero Positions|Hero Positions]]
|-
| 0x09 || [[UINT16LE]]||0000||0000||0000||0000||Amount of gold coins in stash (bytes "88 13" = 5000 coins)
|-
| 0x0B || [[BYTE]]||00||00||38||07||''Placeholder'' for spells bit mask during the game (Water and Air); see [[#Spells|Spells]]
|-
| 0x0C || [[BYTE]]||00||00||00||3F||''Placeholder'' for spells bit mask during the game (Fire and Earth); see [[#Spells|Spells]]
|-
| 0x0D || [[BYTE]]||00||00||00||00||Owned special items bit mask; see [[#Special Items|Special Items]].
|-
| 0x0E || [[BYTE]]||00||00||00||00||Owned weapons bit mask; see [[#Weapon Items|Weapon Items]].
|-
| 0x0F || [[BYTE]]||00||80||00||00||Owned armour bit mask; see [[#Armour Items|Armour Items]].
|-
| 0x10 || [[BYTE]]||00||00||00||00||Owned potions bit mask; see [[#Potions|Potions]]
|-
| 0x11 || [[BYTE]]||00||00||00||00||Equipped weapon. Same values as owned weapons, but only one weapon (or special weapon) can be active.
|-
| 0x12 || [[BYTE]]||00||00||00||00||Equipped special items. Same values as owned special items. Combines any equipped special weapon and armour.
|-
| 0x13 || [[BYTE]]||00||00||00||00||Equipped armour. Same values as owned armour.
|-
| 0x14 || [[UINT8]]||03||02||02||01||Base attack dice number
|-
| 0x15 || [[UINT8]]||02||02||02||02||Base defence dice number
|-
| 0x16 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast by HERO|Spells cast by HERO]] during the game
|-
| 0x17 || [[BYTE]]||00||00||00||00||''Placeholder'' for used [[#Potions|Potions]] effect bit mask during the game
|-
| 0x18 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast on HERO|Spells cast on HERO]] bit mask during the game
|-
| 0x19 || [[UINT8]]||00||01||02||03||Character id used for attack animation and map icon (04=Sir Ragnar/Manfred)
|}

Upon loading a slot the equipment is copied in memory at these locations:
0B6B:4663 Barbarian
0B6B:467D Dwarf
0B6B:4697 Elf
0B6B:46B1 Mage
0B6B:46CA Ragnar/Manfred

=== Equipment ===

The equipment is saved in bits, which are combined into full values. So a value of 0x00 means completely empty, and 0xFF means all are enabled. The equipment bits are used for both ownership and to store which items are currently equipped.

There are three classes of equipment: weapons, armour, and special quest items. In terms of equipped items, there are limitations on which bits can effectively be combined together. The player can only equip one helmet on their head and one armour on their body, and can have a light weapon in their primary hand and a shield in their secondary hand, or the Battle Axe taking up both hands. These rules are enforced when the game evaluates the equipped item bits, taking both normal and special items into account.

==== Weapon Items ====

The Weapons follow the order of the equipment on the screen, with the lowest bit indicating the first item, but since they do not include the armour, and the Tool Kit is equipped as weapon, that one takes up the eighth weapon value.

[[File:HeroQuest_equipment.png]]

Weapon items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Staff || Primary hand
|-
| 2 || 00000010 || 0x02 || Short Sword || Primary hand
|-
| 3 || 00000100 || 0x04 || Broad Sword || Primary hand
|-
| 4 || 00001000 || 0x08 || Battle Axe || Primary and secondary hands
|-
| 5 || 00010000 || 0x10 || Crossbow || Primary hand
|-
| 6 || 00100000 || 0x20 || Hand Axe || Primary hand
|-
| 7 || 01000000 || 0x40 || Spear || Primary hand
|-
| 8 || 10000000 || 0x80 || Tool Kit || Primary hand
|}

==== Armour Items ====

Like the weapons, the Armour types follow their order on the inventory screen, with the Shield as the lowest value. The higher bits are used for special situations.

Armour items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Shield || Secondary hand
|-
| 2 || 00000010 || 0x02 || Helmet || Head
|-
| 3 || 00000100 || 0x04 || Chain Mail || Body
|-
| 4 || 00001000 || 0x08 || Plate Armour || Body
|-
| 5 || 00010000 || 0x10 || Unknown / not used ||
|-
| 6 || 00100000 || 0x20 || The hero cannot attack or defend || Used in Mine's gold quest and Manfred's
|-
| 7 || 01000000 || 0x40 || Only one die for movement || Used when carrying treasure chests
|-
| 8 || 10000000 || 0x80 || Dwarf's Tool Kit || Dwarf only (this special item appears during quests but not in armoury)
|-
|}

==== Special Items ====

Like the normal items, special items are saved as single bits that can be combined into a full value. They follow the layout of the special items on screen, with the lowest bit indicating the first item.

[[File:HeroQuest_Special.png]]

The special items are:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on !! Remarks
|-
| 1 || 00000001 || 0x01 || Borin's Armour || Body || Despite showing a helmet as icon, this item is considered body armour and can be combined with the helmet.
|-
| 2 || 00000010 || 0x02 || Wand of Recall || None || Can't be equipped.
|-
| 3 || 00000100 || 0x04 || Talisman of Lore || None || Can't be equipped.
|-
| 4 || 00001000 || 0x08 || Orc's Bane || Primary hand ||
|-
| 5 || 00010000 || 0x10 || Spirit Blade || Primary hand ||
|}

Examples for the ownership bits:

* 00000001 = 01 = Borin's Armour Only
* 00010100 = 14 = Talisman of Lore and Spirit Blade
* 00011111 = 1F = everything

==== Spells ====

Like the other items, spells are saved as single bits that can be combined into a full value. In the save file, though, these bytes are only a placeholders for the spells once the file is loaded into memory. There are two separate 8 bit masks; the first for Water and Air, and the second for Fire and Earth.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! 0x0B Spell name (Type) !! 0x0C Spell name (Type)
|-
| 1 || 00000001 || 0x01 || Veil of mist (Water) || Courage (Fire)
|-
| 2 || 00000010 || 0x02 || Water of healing (Water) || Ball of flame (Fire)
|-
| 3 || 00000100 || 0x04 || Sleep (Water) || Fire of wrath (Fire)
|-
| 4 || 00001000 || 0x08 || Tempest (Air) || Pass through rock (Earth)
|-
| 5 || 00010000 || 0x10 || Swift wind (Air) || Rock skin (Earth)
|-
| 6 || 00100000 || 0x20 || Genie /attack (Air) || Body healing (Earth)
|-
| 7 || 01000000 || 0x40 || not used || Genie /reveal (air)
|-
| 8 || 10000000 || 0x80 || not used || not used
|}

Examples for the ownership bits:

* 00000111 = 07 = all three Water (0B) or Fire (0C) spells
* 00111000 = 38 = all three Air (0B) or Earth (0C) spells
* 00111111 = 3F = all Water and Air (0B) or Fire and Earth (0C) spells
* 00000100 = 04 = only sleep (0B) or fire of wrath (0C) spell

==== Spells cast by HERO ====

This time it doesn't seem to be a bit mask, just plain hex values used to populate the effect slot (0x18), remove the spell in 0x0B or 0x0C and then erased.

{|class="wikitable"
! Hex value !! Spell Name !! Spell effect !! LOS required !! Duration
|-
| 0x01 || Veil of mist (Water) || Invisibility || yes || one monster turn
|-
| 0x02 || Water of healing (Water) || Cure 4 body points || yes || permanent
|-
| 0x03 || Sleep (Water) || Lose N turns || yes || until attacked or if he rolls a 6
|-
| 0x04 || Tempest (Air) || Lose a turn || yes || one monster turn
|-
| 0x05 || Swift wind (Air) || 2x movement || yes || next movement phase
|-
| 0x06 || Genie (Air) || 5 Attack dice || no || hero attack phase
|-
| 0x07 || Courage (Fire) || +2 Attack dice || yes || hero attack phase
|-
| 0x08 || Ball of flame (Fire) || 2 attack dice || yes || hero attack phase
|-
| 0x09 || Fire of wrath (Fire) || 1 Attack dice || no || hero attack phase
|-
| 0x0A || Pass through rock (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0B || Rock skin (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0C || Body healing (Earth) || Cure 4 body points || yes || permanent
|-
| 0x0D || Genie (Air) || Reveal a room || no || hero attack phase
|}

==== Potions ====

Potions follow the same principle of all other bit masks. The only exceptions is they get wiped once you start a new quest. This can be bypassed with a simple hack since the save and load features correctly process that byte.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Potion Name !! Potion effect
|-
| 1 || 00000001 || 0x01 || Potion of Strength || +2 attack dice in the next combat phase
|-
| 2 || 00000010 || 0x02 || Potion of Resilience || +2 defence dice in the next combat phase
|-
| 3 || 00000100 || 0x04 || Potion of Healing || +4 body points
|-
| 4 || 00001000 || 0x08 || Potion of Healing || +4 body points
|-
| 5 || 00010000 || 0x10 || Holy Water || Kills every undead in the room
|-
| 6 || 00100000 || 0x20 || Potion of Speed || 2x movement in the next movement phase
|-
| 7 || 01000000 || 0x40 || Heroic Brew || 2x attack in the next combat phase
|-
| 8 || 10000000 || 0x80 || not used ||
|}

Examples:

* 01111111 = 7F = All potions
* 00001100 = 0C = Two potions of Healing
* 00000011 = 03 = Strength and Resilience

==== Spells cast on HERO ====

Only the effects that last at least one round appear in this bit mask (0x18).
{|class="wikitable"
! Bit !! Binary value !! Hex value !! Spell Name !! Spell effect !! Duration (PC) !! Duration (board game)
|-
| 1 || 00000001 || 0x01 || Veil of mist || Invisibility || next monster phase || next monster phase
|-
| 2 || 00000010 || 0x02 || Sleep || Lose a turn || until you throw a 6|| until you throw a 6 or if attacked
|-
| 3 || 00000100 || 0x04 || Tempest || Lose a turn || next hero phase || next hero phase
|-
| 4 || 00001000 || 0x08 || Swift wind || Double movement || next movement phase || next movement phase
|-
| 5 || 00010000 || 0x10 || Courage || +2 Attack dice || next attack phase || until no monster are visible by the hero anymore
|-
| 6 || 00100000 || 0x20 || Pass through rock || Self explanatory || next movement phase || next movement phase
|-
| 7 || 01000000 || 0x40 || Rock skin || +2 Defense dice || next defense phase || until the hero suffers a wound
|-
| 8 || 10000000 || 0x80 || Pass through rock || delayed effect if casted on the caster || next turn || next movement phase
|}

* Courage, Rock skin and sleep effects differ from the original board game.

HeroQuest Savegame Format

2026-04-30T16:02:52Z

Theruler: /* Inventory sections */

The QUEST.SAV file in [[HeroQuest]] contains the saved character data. Characters can be saved between quests.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Character names, stats, gold, quest object, inventory. various stats
| Games =
{{Game|HeroQuest}}
}}

== Format ==

The file holds the 8 slots for each of the four characters of the game, split into two sections. The first section are the (in-game editable) names of all the characters, the second half contains all the characters' actual information and inventories.

Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

This is how a default savegame looks like in an hex editor:

[[File:Savegame.jpg|320px]]

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Repeats!!Default value!!Description
|-
|0x000||[[char]][17]||8||SIGMAR||Name of the Barbarian
|-
|0x088||[[char]][17]||8||GRUNGI||Name of the Dwarf
|-
|0x110||[[char]][17]||8||LADRIL||Name of the Elf
|-
|0x198||[[char]][17]||8||ZOLTAR||Name of the Wizard
|-
|0x220||[[BYTE]][26]||8||Zeroes||Inventory of the Barbarian
|-
|0x2F0||[[BYTE]][26]||8||Zeroes||Inventory of the Dwarf
|-
|0x3C0||[[BYTE]][26]||8||Zeroes||Inventory of the Elf
|-
|0x490||[[BYTE]][26]||8||Zeroes||Inventory of the Wizard
|}

== Name sections ==

The names are in typical zero-terminated format, and can be a maximum of 16 characters in length. If a savegame is edited to have data in the remaining name part, it will not be read, and the space will be cleared to zeroes when re-saved.

The name normally only accepts uppercase characters. If lowercase characters are edited into the savegame file, it becomes clear that the lowercase range of the font is used for special accented characters. Some characters in the range are completely empty, but they still offer clickable space.

[[File:HeroQuest_savegame_lowercase_name.png]]

If the first byte in a name is set to a 00 byte, the entry becomes unclickable in the user interface, effectively making it permanently unusable. There is a bug in the game where this can occur when you change the name of a character and confirm without filling in anything, and then save the character data.

== Inventory sections ==

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="4"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BAR!!style=width:2em|DWA!!style=width:2em|ELF!!style=width:2em|WIZ
|-
| 0x00 || [[BYTE]]||00||00||00||00||Character game status: 00=in menu FF=in quest
|-
| 0x01 || [[UINT8]][2]||0000||0000||0000||0000||''Placeholder'' for Hero's position on the map XXYY. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x03 || [[UINT8]]||00||00||00||00||''Placeholder'' for Hero's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x04 || [[UINT16LE]]||0000||0000||0000||0000||''Placeholder'' for Memory location of Hero's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 0x06 || [[UINT8]]||08||07||06||04||Body points, 0-9 shows a figure, higher values work but the game shows the rest of the fonts.
|-
| 0x07 || [[UINT8]]||02||03||04||06||Mind points, same as above.
|-
| 0x08 || [[UINT8]]||26||2C||38||44||''Placeholder'' for Hero's facing sprite. See [[HeroQuest Quest Format#Hero Positions|Hero Positions]]
|-
| 0x09 || [[UINT16LE]]||0000||0000||0000||0000||Amount of gold coins in stash (bytes "88 13" = 5000 coins)
|-
| 0x0B || [[BYTE]]||00||00||38||07||''Placeholder'' for spells bit mask during the game (Water and Air); see [[#Spells|Spells]]
|-
| 0x0C || [[BYTE]]||00||00||00||3F||''Placeholder'' for spells bit mask during the game (Fire and Earth); see [[#Spells|Spells]]
|-
| 0x0D || [[BYTE]]||00||00||00||00||Owned special items bit mask; see [[#Special Items|Special Items]].
|-
| 0x0E || [[BYTE]]||00||00||00||00||Owned weapons bit mask; see [[#Weapon Items|Weapon Items]].
|-
| 0x0F || [[BYTE]]||00||80||00||00||Owned armour bit mask; see [[#Armour Items|Armour Items]].
|-
| 0x10 || [[BYTE]]||00||00||00||00||Owned potions bit mask; see [[#Potions|Potions]]
|-
| 0x11 || [[BYTE]]||00||00||00||00||Equipped weapon. Same values as owned weapons, but only one weapon (or special weapon) can be active.
|-
| 0x12 || [[BYTE]]||00||00||00||00||Equipped special items. Same values as owned special items. Combines any equipped special weapon and armour.
|-
| 0x13 || [[BYTE]]||00||00||00||00||Equipped armour. Same values as owned armour.
|-
| 0x14 || [[UINT8]]||03||02||02||01||Base attack dice number
|-
| 0x15 || [[UINT8]]||02||02||02||02||Base defence dice number
|-
| 0x16 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast by HERO|Spells cast by HERO]] during the game
|-
| 0x17 || [[BYTE]]||00||00||00||00||''Placeholder'' for used [[#Potions|Potions]] effect bit mask during the game
|-
| 0x18 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast on HERO|Spells cast on HERO]] bit mask during the game
|-
| 0x19 || [[UINT8]]||00||01||02||03||Character id used for attack animation and map icon (04=Sir Ragnar/Manfred)
|}

Upon loading a slot the equipment is copied in memory at these locations:
0B6B:4663 Barbarian
0B6B:467D Dwarf
0B6B:4697 Elf
0B6B:46B1 Mage
0B6B:46CA Ragnar/Manfred

=== Equipment ===

The equipment is saved in bits, which are combined into full values. So a value of 0x00 means completely empty, and 0xFF means all are enabled. The equipment bits are used for both ownership and to store which items are currently equipped.

There are three classes of equipment: weapons, armour, and special quest items. In terms of equipped items, there are limitations on which bits can effectively be combined together. The player can only equip one helmet on their head and one armour on their body, and can have a light weapon in their primary hand and a shield in their secondary hand, or the Battle Axe taking up both hands. These rules are enforced when the game evaluates the equipped item bits, taking both normal and special items into account.

==== Weapon Items ====

The Weapons follow the order of the equipment on the screen, with the lowest bit indicating the first item, but since they do not include the armour, and the Tool Kit is equipped as weapon, that one takes up the eighth weapon value.

[[File:HeroQuest_equipment.png]]

Weapon items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Staff || Primary hand
|-
| 2 || 00000010 || 0x02 || Short Sword || Primary hand
|-
| 3 || 00000100 || 0x04 || Broad Sword || Primary hand
|-
| 4 || 00001000 || 0x08 || Battle Axe || Primary and secondary hands
|-
| 5 || 00010000 || 0x10 || Crossbow || Primary hand
|-
| 6 || 00100000 || 0x20 || Hand Axe || Primary hand
|-
| 7 || 01000000 || 0x40 || Spear || Primary hand
|-
| 8 || 10000000 || 0x80 || Tool Kit || Primary hand
|}

==== Armour Items ====

Like the weapons, the Armour types follow their order on the inventory screen, with the Shield as the lowest value. The higher bits are used for special situations.

Armour items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Shield || Secondary hand
|-
| 2 || 00000010 || 0x02 || Helmet || Head
|-
| 3 || 00000100 || 0x04 || Chain Mail || Body
|-
| 4 || 00001000 || 0x08 || Plate Armour || Body
|-
| 5 || 00010000 || 0x10 || Unknown / not used ||
|-
| 6 || 00100000 || 0x20 || The hero cannot attack or defend || Used in Mine's gold quest and Manfred's
|-
| 7 || 01000000 || 0x40 || Only one die for movement || Used when carrying treasure chests
|-
| 8 || 10000000 || 0x80 || Dwarf's Tool Kit || Dwarf only (this special item appears during quests but not in armoury)
|-
|}

==== Special Items ====

Like the normal items, special items are saved as single bits that can be combined into a full value. They follow the layout of the special items on screen, with the lowest bit indicating the first item.

[[File:HeroQuest_Special.png]]

The special items are:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on !! Remarks
|-
| 1 || 00000001 || 0x01 || Borin's Armour || Body || Despite showing a helmet as icon, this item is considered body armour and can be combined with the helmet.
|-
| 2 || 00000010 || 0x02 || Wand of Recall || None || Can't be equipped.
|-
| 3 || 00000100 || 0x04 || Talisman of Lore || None || Can't be equipped.
|-
| 4 || 00001000 || 0x08 || Orc's Bane || Primary hand ||
|-
| 5 || 00010000 || 0x10 || Spirit Blade || Primary hand ||
|}

Examples for the ownership bits:

* 00000001 = 01 = Borin's Armour Only
* 00010100 = 14 = Talisman of Lore and Spirit Blade
* 00011111 = 1F = everything

==== Spells ====

Like the other items, spells are saved as single bits that can be combined into a full value. In the save file, though, these bytes are only a placeholders for the spells once the file is loaded into memory. There are two separate 8 bit masks; the first for Water and Air, and the second for Fire and Earth.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! 0x0B Spell name (Type) !! 0x0C Spell name (Type)
|-
| 1 || 00000001 || 0x01 || Veil of mist (Water) || Courage (Fire)
|-
| 2 || 00000010 || 0x02 || Water of healing (Water) || Ball of flame (Fire)
|-
| 3 || 00000100 || 0x04 || Sleep (Water) || Fire of wrath (Fire)
|-
| 4 || 00001000 || 0x08 || Tempest (Air) || Pass through rock (Earth)
|-
| 5 || 00010000 || 0x10 || Swift wind (Air) || Rock skin (Earth)
|-
| 6 || 00100000 || 0x20 || Genie /attack (Air) || Body healing (Earth)
|-
| 7 || 01000000 || 0x40 || not used || Genie /reveal (air)
|-
| 8 || 10000000 || 0x80 || not used || not used
|}

Examples for the ownership bits:

* 00000111 = 07 = all three Water (0B) or Fire (0C) spells
* 00111000 = 38 = all three Air (0B) or Earth (0C) spells
* 00111111 = 3F = all Water and Air (0B) or Fire and Earth (0C) spells
* 00000100 = 04 = only sleep (0B) or fire of wrath (0C) spell

==== Spells cast by HERO ====

This time it doesn't seem to be a bit mask, just plain hex values used to populate the effect slot (0x18), remove the spell in 0x0B or 0x0C and then erased.

{|class="wikitable"
! Hex value !! Spell Name !! Spell effect !! LOS required !! Duration
|-
| 0x01 || Veil of mist (Water) || Invisibility || yes || one monster turn
|-
| 0x02 || Water of healing (Water) || Cure 4 body points || yes || permanent
|-
| 0x03 || Sleep (Water) || Lose N turns || yes || until attacked or if he rolls a 6
|-
| 0x04 || Tempest (Air) || Lose a turn || yes || one monster turn
|-
| 0x05 || Swift wind (Air) || 2x movement || yes || next movement phase
|-
| 0x06 || Genie (Air) || 5 Attack dice || no || hero attack phase
|-
| 0x07 || Courage (Fire) || +2 Attack dice || yes || hero attack phase
|-
| 0x08 || Ball of flame (Fire) || 2 attack dice || yes || hero attack phase
|-
| 0x09 || Fire of wrath (Fire) || 1 Attack dice || no || hero attack phase
|-
| 0x0A || Pass through rock (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0B || Rock skin (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0C || Body healing (Earth) || Cure 4 body points || yes || permanent
|-
| 0x0D || Genie (Air) || Reveal a room || no || hero attack phase
|}

==== Potions ====

Potions follow the same principle of all other bit masks. The only exceptions is they get wiped once you start a new quest. This can be bypassed with a simple hack since the save and load features correctly process that byte.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Potion Name !! Potion effect
|-
| 1 || 00000001 || 0x01 || Potion of Strength || +2 attack dice in the next combat phase
|-
| 2 || 00000010 || 0x02 || Potion of Resilience || +2 defence dice in the next combat phase
|-
| 3 || 00000100 || 0x04 || Potion of Healing || +4 body points
|-
| 4 || 00001000 || 0x08 || Potion of Healing || +4 body points
|-
| 5 || 00010000 || 0x10 || Holy Water || Kills every undead in the room
|-
| 6 || 00100000 || 0x20 || Potion of Speed || 2x movement in the next movement phase
|-
| 7 || 01000000 || 0x40 || Heroic Brew || 2x attack in the next combat phase
|-
| 8 || 10000000 || 0x80 || not used ||
|}

Examples:

* 01111111 = 7F = All potions
* 00001100 = 0C = Two potions of Healing
* 00000011 = 03 = Strength and Resilience

==== Spells cast on HERO ====

Only the effects that last at least one round appear in this bit mask (0x18).
{|class="wikitable"
! Bit !! Binary value !! Hex value !! Spell Name !! Spell effect !! Duration (PC) !! Duration (board game)
|-
| 1 || 00000001 || 0x01 || Veil of mist || Invisibility || next monster phase || next monster phase
|-
| 2 || 00000010 || 0x02 || Sleep || Lose a turn || until you throw a 6|| until you throw a 6 or if attacked
|-
| 3 || 00000100 || 0x04 || Tempest || Lose a turn || next hero phase || next hero phase
|-
| 4 || 00001000 || 0x08 || Swift wind || Double movement || next movement phase || next movement phase
|-
| 5 || 00010000 || 0x10 || Courage || +2 Attack dice || next attack phase || until no monster are visible by the hero anymore
|-
| 6 || 00100000 || 0x20 || Pass through rock || Self explanatory || next movement phase || next movement phase
|-
| 7 || 01000000 || 0x40 || Rock skin || +2 Defense dice || next defense phase || until the hero suffers a wound
|-
| 8 || 10000000 || 0x80 || not used || -- || -- || --
|}

* Courage, Rock skin and sleep effects differ from the original board game.

HeroQuest Savegame Format

2026-04-11T08:25:51Z

Theruler: /* Armour Items */

The QUEST.SAV file in [[HeroQuest]] contains the saved character data. Characters can be saved between quests.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Character names, stats, gold, quest object, inventory. various stats
| Games =
{{Game|HeroQuest}}
}}

== Format ==

The file holds the 8 slots for each of the four characters of the game, split into two sections. The first section are the (in-game editable) names of all the characters, the second half contains all the characters' actual information and inventories.

Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

This is how a default savegame looks like in an hex editor:

[[File:Savegame.jpg|320px]]

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Repeats!!Default value!!Description
|-
|0x000||[[char]][17]||8||SIGMAR||Name of the Barbarian
|-
|0x088||[[char]][17]||8||GRUNGI||Name of the Dwarf
|-
|0x110||[[char]][17]||8||LADRIL||Name of the Elf
|-
|0x198||[[char]][17]||8||ZOLTAR||Name of the Wizard
|-
|0x220||[[BYTE]][26]||8||Zeroes||Inventory of the Barbarian
|-
|0x2F0||[[BYTE]][26]||8||Zeroes||Inventory of the Dwarf
|-
|0x3C0||[[BYTE]][26]||8||Zeroes||Inventory of the Elf
|-
|0x490||[[BYTE]][26]||8||Zeroes||Inventory of the Wizard
|}

== Name sections ==

The names are in typical zero-terminated format, and can be a maximum of 16 characters in length. If a savegame is edited to have data in the remaining name part, it will not be read, and the space will be cleared to zeroes when re-saved.

The name normally only accepts uppercase characters. If lowercase characters are edited into the savegame file, it becomes clear that the lowercase range of the font is used for special accented characters. Some characters in the range are completely empty, but they still offer clickable space.

[[File:HeroQuest_savegame_lowercase_name.png]]

If the first byte in a name is set to a 00 byte, the entry becomes unclickable in the user interface, effectively making it permanently unusable. There is a bug in the game where this can occur when you change the name of a character and confirm without filling in anything, and then save the character data.

== Inventory sections ==

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="4"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BAR!!style=width:2em|DWA!!style=width:2em|ELF!!style=width:2em|WIZ
|-
| 0x00 || [[BYTE]]||00||00||00||00||Character game status: 00=in menu FF=in quest
|-
| 0x01 || [[UINT8]][2]||0000||0000||0000||0000||''Placeholder'' for Hero's position on the map XXYY. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x03 || [[UINT8]]||00||00||00||00||''Placeholder'' for Hero's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x04 || [[UINT16LE]]||0000||0000||0000||0000||''Placeholder'' for Memory location of Hero's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 0x06 || [[UINT8]]||08||07||06||04||Body points, 0-9 shows a figure, higher values work but the game shows the rest of the fonts.
|-
| 0x07 || [[UINT8]]||02||03||04||06||Mind points, same as above.
|-
| 0x08 || [[UINT8]]||26||2C||38||44||''Placeholder'' for Hero's facing sprite. See [[HeroQuest Quest Format#Hero Positions|Hero Positions]]
|-
| 0x09 || [[UINT16LE]]||0000||0000||0000||0000||Amount of gold coins in stash (bytes "88 13" = 5000 coins)
|-
| 0x0B || [[BYTE]]||00||00||38||07||''Placeholder'' for spells bit mask during the game (Water and Air); see [[#Spells|Spells]]
|-
| 0x0C || [[BYTE]]||00||00||00||3F||''Placeholder'' for spells bit mask during the game (Fire and Earth); see [[#Spells|Spells]]
|-
| 0x0D || [[BYTE]]||00||00||00||00||Owned special items bit mask; see [[#Special Items|Special Items]].
|-
| 0x0E || [[BYTE]]||00||00||00||00||Owned weapons bit mask; see [[#Weapon Items|Weapon Items]].
|-
| 0x0F || [[BYTE]]||00||00||00||00||Owned armour bit mask; see [[#Armour Items|Armour Items]].
|-
| 0x10 || [[BYTE]]||00||00||00||00||Owned potions bit mask; see [[#Potions|Potions]]
|-
| 0x11 || [[BYTE]]||00||00||00||00||Equipped weapon. Same values as owned weapons, but only one weapon (or special weapon) can be active.
|-
| 0x12 || [[BYTE]]||00||00||00||00||Equipped special items. Same values as owned special items. Combines any equipped special weapon and armour.
|-
| 0x13 || [[BYTE]]||00||00||00||00||Equipped armour. Same values as owned armour.
|-
| 0x14 || [[UINT8]]||03||02||02||01||Base attack dice number
|-
| 0x15 || [[UINT8]]||02||02||02||02||Base defence dice number
|-
| 0x16 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast by HERO|Spells cast by HERO]] during the game
|-
| 0x17 || [[BYTE]]||00||00||00||00||''Placeholder'' for used [[#Potions|Potions]] effect bit mask during the game
|-
| 0x18 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast on HERO|Spells cast on HERO]] bit mask during the game
|-
| 0x19 || [[UINT8]]||00||01||02||03||Character id used for attack animation and map icon (04=Sir Ragnar/Manfred)
|}

Upon loading a slot the equipment is copied in memory at these locations:
0B6B:4663 Barbarian
0B6B:467D Dwarf
0B6B:4697 Elf
0B6B:46B1 Mage
0B6B:46CA Ragnar/Manfred

=== Equipment ===

The equipment is saved in bits, which are combined into full values. So a value of 0x00 means completely empty, and 0xFF means all are enabled. The equipment bits are used for both ownership and to store which items are currently equipped.

There are three classes of equipment: weapons, armour, and special quest items. In terms of equipped items, there are limitations on which bits can effectively be combined together. The player can only equip one helmet on their head and one armour on their body, and can have a light weapon in their primary hand and a shield in their secondary hand, or the Battle Axe taking up both hands. These rules are enforced when the game evaluates the equipped item bits, taking both normal and special items into account.

==== Weapon Items ====

The Weapons follow the order of the equipment on the screen, with the lowest bit indicating the first item, but since they do not include the armour, and the Tool Kit is equipped as weapon, that one takes up the eighth weapon value.

[[File:HeroQuest_equipment.png]]

Weapon items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Staff || Primary hand
|-
| 2 || 00000010 || 0x02 || Short Sword || Primary hand
|-
| 3 || 00000100 || 0x04 || Broad Sword || Primary hand
|-
| 4 || 00001000 || 0x08 || Battle Axe || Primary and secondary hands
|-
| 5 || 00010000 || 0x10 || Crossbow || Primary hand
|-
| 6 || 00100000 || 0x20 || Hand Axe || Primary hand
|-
| 7 || 01000000 || 0x40 || Spear || Primary hand
|-
| 8 || 10000000 || 0x80 || Tool Kit || Primary hand
|}

==== Armour Items ====

Like the weapons, the Armour types follow their order on the inventory screen, with the Shield as the lowest value. The higher bits are used for special situations.

Armour items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Shield || Secondary hand
|-
| 2 || 00000010 || 0x02 || Helmet || Head
|-
| 3 || 00000100 || 0x04 || Chain Mail || Body
|-
| 4 || 00001000 || 0x08 || Plate Armour || Body
|-
| 5 || 00010000 || 0x10 || Unknown / not used ||
|-
| 6 || 00100000 || 0x20 || The hero cannot attack or defend || Used in Mine's gold quest and Manfred's
|-
| 7 || 01000000 || 0x40 || Only one die for movement || Used when carrying treasure chests
|-
| 8 || 10000000 || 0x80 || Dwarf's Tool Kit || Dwarf only (this special item appears during quests but not in armoury)
|-
|}

==== Special Items ====

Like the normal items, special items are saved as single bits that can be combined into a full value. They follow the layout of the special items on screen, with the lowest bit indicating the first item.

[[File:HeroQuest_Special.png]]

The special items are:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on !! Remarks
|-
| 1 || 00000001 || 0x01 || Borin's Armour || Body || Despite showing a helmet as icon, this item is considered body armour and can be combined with the helmet.
|-
| 2 || 00000010 || 0x02 || Wand of Recall || None || Can't be equipped.
|-
| 3 || 00000100 || 0x04 || Talisman of Lore || None || Can't be equipped.
|-
| 4 || 00001000 || 0x08 || Orc's Bane || Primary hand ||
|-
| 5 || 00010000 || 0x10 || Spirit Blade || Primary hand ||
|}

Examples for the ownership bits:

* 00000001 = 01 = Borin's Armour Only
* 00010100 = 14 = Talisman of Lore and Spirit Blade
* 00011111 = 1F = everything

==== Spells ====

Like the other items, spells are saved as single bits that can be combined into a full value. In the save file, though, these bytes are only a placeholders for the spells once the file is loaded into memory. There are two separate 8 bit masks; the first for Water and Air, and the second for Fire and Earth.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! 0x0B Spell name (Type) !! 0x0C Spell name (Type)
|-
| 1 || 00000001 || 0x01 || Veil of mist (Water) || Courage (Fire)
|-
| 2 || 00000010 || 0x02 || Water of healing (Water) || Ball of flame (Fire)
|-
| 3 || 00000100 || 0x04 || Sleep (Water) || Fire of wrath (Fire)
|-
| 4 || 00001000 || 0x08 || Tempest (Air) || Pass through rock (Earth)
|-
| 5 || 00010000 || 0x10 || Swift wind (Air) || Rock skin (Earth)
|-
| 6 || 00100000 || 0x20 || Genie /attack (Air) || Body healing (Earth)
|-
| 7 || 01000000 || 0x40 || not used || Genie /reveal (air)
|-
| 8 || 10000000 || 0x80 || not used || not used
|}

Examples for the ownership bits:

* 00000111 = 07 = all three Water (0B) or Fire (0C) spells
* 00111000 = 38 = all three Air (0B) or Earth (0C) spells
* 00111111 = 3F = all Water and Air (0B) or Fire and Earth (0C) spells
* 00000100 = 04 = only sleep (0B) or fire of wrath (0C) spell

==== Spells cast by HERO ====

This time it doesn't seem to be a bit mask, just plain hex values used to populate the effect slot (0x18), remove the spell in 0x0B or 0x0C and then erased.

{|class="wikitable"
! Hex value !! Spell Name !! Spell effect !! LOS required !! Duration
|-
| 0x01 || Veil of mist (Water) || Invisibility || yes || one monster turn
|-
| 0x02 || Water of healing (Water) || Cure 4 body points || yes || permanent
|-
| 0x03 || Sleep (Water) || Lose N turns || yes || until attacked or if he rolls a 6
|-
| 0x04 || Tempest (Air) || Lose a turn || yes || one monster turn
|-
| 0x05 || Swift wind (Air) || 2x movement || yes || next movement phase
|-
| 0x06 || Genie (Air) || 5 Attack dice || no || hero attack phase
|-
| 0x07 || Courage (Fire) || +2 Attack dice || yes || hero attack phase
|-
| 0x08 || Ball of flame (Fire) || 2 attack dice || yes || hero attack phase
|-
| 0x09 || Fire of wrath (Fire) || 1 Attack dice || no || hero attack phase
|-
| 0x0A || Pass through rock (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0B || Rock skin (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0C || Body healing (Earth) || Cure 4 body points || yes || permanent
|-
| 0x0D || Genie (Air) || Reveal a room || no || hero attack phase
|}

==== Potions ====

Potions follow the same principle of all other bit masks. The only exceptions is they get wiped once you start a new quest. This can be bypassed with a simple hack since the save and load features correctly process that byte.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Potion Name !! Potion effect
|-
| 1 || 00000001 || 0x01 || Potion of Strength || +2 attack dice in the next combat phase
|-
| 2 || 00000010 || 0x02 || Potion of Resilience || +2 defence dice in the next combat phase
|-
| 3 || 00000100 || 0x04 || Potion of Healing || +4 body points
|-
| 4 || 00001000 || 0x08 || Potion of Healing || +4 body points
|-
| 5 || 00010000 || 0x10 || Holy Water || Kills every undead in the room
|-
| 6 || 00100000 || 0x20 || Potion of Speed || 2x movement in the next movement phase
|-
| 7 || 01000000 || 0x40 || Heroic Brew || 2x attack in the next combat phase
|-
| 8 || 10000000 || 0x80 || not used ||
|}

Examples:

* 01111111 = 7F = All potions
* 00001100 = 0C = Two potions of Healing
* 00000011 = 03 = Strength and Resilience

==== Spells cast on HERO ====

Only the effects that last at least one round appear in this bit mask (0x18).
{|class="wikitable"
! Bit !! Binary value !! Hex value !! Spell Name !! Spell effect !! Duration (PC) !! Duration (board game)
|-
| 1 || 00000001 || 0x01 || Veil of mist || Invisibility || next monster phase || next monster phase
|-
| 2 || 00000010 || 0x02 || Sleep || Lose a turn || until you throw a 6|| until you throw a 6 or if attacked
|-
| 3 || 00000100 || 0x04 || Tempest || Lose a turn || next hero phase || next hero phase
|-
| 4 || 00001000 || 0x08 || Swift wind || Double movement || next movement phase || next movement phase
|-
| 5 || 00010000 || 0x10 || Courage || +2 Attack dice || next attack phase || until no monster are visible by the hero anymore
|-
| 6 || 00100000 || 0x20 || Pass through rock || Self explanatory || next movement phase || next movement phase
|-
| 7 || 01000000 || 0x40 || Rock skin || +2 Defense dice || next defense phase || until the hero suffers a wound
|-
| 8 || 10000000 || 0x80 || not used || -- || -- || --
|}

* Courage, Rock skin and sleep effects differ from the original board game.

HeroQuest Savegame Format

2026-04-11T08:23:14Z

Theruler: /* Armour Items */

The QUEST.SAV file in [[HeroQuest]] contains the saved character data. Characters can be saved between quests.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Character names, stats, gold, quest object, inventory. various stats
| Games =
{{Game|HeroQuest}}
}}

== Format ==

The file holds the 8 slots for each of the four characters of the game, split into two sections. The first section are the (in-game editable) names of all the characters, the second half contains all the characters' actual information and inventories.

Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

This is how a default savegame looks like in an hex editor:

[[File:Savegame.jpg|320px]]

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Repeats!!Default value!!Description
|-
|0x000||[[char]][17]||8||SIGMAR||Name of the Barbarian
|-
|0x088||[[char]][17]||8||GRUNGI||Name of the Dwarf
|-
|0x110||[[char]][17]||8||LADRIL||Name of the Elf
|-
|0x198||[[char]][17]||8||ZOLTAR||Name of the Wizard
|-
|0x220||[[BYTE]][26]||8||Zeroes||Inventory of the Barbarian
|-
|0x2F0||[[BYTE]][26]||8||Zeroes||Inventory of the Dwarf
|-
|0x3C0||[[BYTE]][26]||8||Zeroes||Inventory of the Elf
|-
|0x490||[[BYTE]][26]||8||Zeroes||Inventory of the Wizard
|}

== Name sections ==

The names are in typical zero-terminated format, and can be a maximum of 16 characters in length. If a savegame is edited to have data in the remaining name part, it will not be read, and the space will be cleared to zeroes when re-saved.

The name normally only accepts uppercase characters. If lowercase characters are edited into the savegame file, it becomes clear that the lowercase range of the font is used for special accented characters. Some characters in the range are completely empty, but they still offer clickable space.

[[File:HeroQuest_savegame_lowercase_name.png]]

If the first byte in a name is set to a 00 byte, the entry becomes unclickable in the user interface, effectively making it permanently unusable. There is a bug in the game where this can occur when you change the name of a character and confirm without filling in anything, and then save the character data.

== Inventory sections ==

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="4"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BAR!!style=width:2em|DWA!!style=width:2em|ELF!!style=width:2em|WIZ
|-
| 0x00 || [[BYTE]]||00||00||00||00||Character game status: 00=in menu FF=in quest
|-
| 0x01 || [[UINT8]][2]||0000||0000||0000||0000||''Placeholder'' for Hero's position on the map XXYY. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x03 || [[UINT8]]||00||00||00||00||''Placeholder'' for Hero's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x04 || [[UINT16LE]]||0000||0000||0000||0000||''Placeholder'' for Memory location of Hero's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 0x06 || [[UINT8]]||08||07||06||04||Body points, 0-9 shows a figure, higher values work but the game shows the rest of the fonts.
|-
| 0x07 || [[UINT8]]||02||03||04||06||Mind points, same as above.
|-
| 0x08 || [[UINT8]]||26||2C||38||44||''Placeholder'' for Hero's facing sprite. See [[HeroQuest Quest Format#Hero Positions|Hero Positions]]
|-
| 0x09 || [[UINT16LE]]||0000||0000||0000||0000||Amount of gold coins in stash (bytes "88 13" = 5000 coins)
|-
| 0x0B || [[BYTE]]||00||00||38||07||''Placeholder'' for spells bit mask during the game (Water and Air); see [[#Spells|Spells]]
|-
| 0x0C || [[BYTE]]||00||00||00||3F||''Placeholder'' for spells bit mask during the game (Fire and Earth); see [[#Spells|Spells]]
|-
| 0x0D || [[BYTE]]||00||00||00||00||Owned special items bit mask; see [[#Special Items|Special Items]].
|-
| 0x0E || [[BYTE]]||00||00||00||00||Owned weapons bit mask; see [[#Weapon Items|Weapon Items]].
|-
| 0x0F || [[BYTE]]||00||00||00||00||Owned armour bit mask; see [[#Armour Items|Armour Items]].
|-
| 0x10 || [[BYTE]]||00||00||00||00||Owned potions bit mask; see [[#Potions|Potions]]
|-
| 0x11 || [[BYTE]]||00||00||00||00||Equipped weapon. Same values as owned weapons, but only one weapon (or special weapon) can be active.
|-
| 0x12 || [[BYTE]]||00||00||00||00||Equipped special items. Same values as owned special items. Combines any equipped special weapon and armour.
|-
| 0x13 || [[BYTE]]||00||00||00||00||Equipped armour. Same values as owned armour.
|-
| 0x14 || [[UINT8]]||03||02||02||01||Base attack dice number
|-
| 0x15 || [[UINT8]]||02||02||02||02||Base defence dice number
|-
| 0x16 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast by HERO|Spells cast by HERO]] during the game
|-
| 0x17 || [[BYTE]]||00||00||00||00||''Placeholder'' for used [[#Potions|Potions]] effect bit mask during the game
|-
| 0x18 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast on HERO|Spells cast on HERO]] bit mask during the game
|-
| 0x19 || [[UINT8]]||00||01||02||03||Character id used for attack animation and map icon (04=Sir Ragnar/Manfred)
|}

Upon loading a slot the equipment is copied in memory at these locations:
0B6B:4663 Barbarian
0B6B:467D Dwarf
0B6B:4697 Elf
0B6B:46B1 Mage
0B6B:46CA Ragnar/Manfred

=== Equipment ===

The equipment is saved in bits, which are combined into full values. So a value of 0x00 means completely empty, and 0xFF means all are enabled. The equipment bits are used for both ownership and to store which items are currently equipped.

There are three classes of equipment: weapons, armour, and special quest items. In terms of equipped items, there are limitations on which bits can effectively be combined together. The player can only equip one helmet on their head and one armour on their body, and can have a light weapon in their primary hand and a shield in their secondary hand, or the Battle Axe taking up both hands. These rules are enforced when the game evaluates the equipped item bits, taking both normal and special items into account.

==== Weapon Items ====

The Weapons follow the order of the equipment on the screen, with the lowest bit indicating the first item, but since they do not include the armour, and the Tool Kit is equipped as weapon, that one takes up the eighth weapon value.

[[File:HeroQuest_equipment.png]]

Weapon items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Staff || Primary hand
|-
| 2 || 00000010 || 0x02 || Short Sword || Primary hand
|-
| 3 || 00000100 || 0x04 || Broad Sword || Primary hand
|-
| 4 || 00001000 || 0x08 || Battle Axe || Primary and secondary hands
|-
| 5 || 00010000 || 0x10 || Crossbow || Primary hand
|-
| 6 || 00100000 || 0x20 || Hand Axe || Primary hand
|-
| 7 || 01000000 || 0x40 || Spear || Primary hand
|-
| 8 || 10000000 || 0x80 || Tool Kit || Primary hand
|}

==== Armour Items ====

Like the weapons, the Armour types follow their order on the inventory screen, with the Shield as the lowest value. The higher bits are used for special situations.

Armour items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Shield || Secondary hand
|-
| 2 || 00000010 || 0x02 || Helmet || Head
|-
| 3 || 00000100 || 0x04 || Chain Mail || Body
|-
| 4 || 00001000 || 0x08 || Plate Armour || Body
|-
| 5 || 00010000 || 0x10 || Unknown / not used ||
|-
| 6 || 00100000 || 0x20 || The hero cannot attack or defend ||
|-
| 7 || 01000000 || 0x40 || Only one die for movement ||
|-
| 8 || 10000000 || 0x80 || Dwarf's toolkit || dwarf only (this special toolkit appears during quests but not in armoury)
|-
|}

==== Special Items ====

Like the normal items, special items are saved as single bits that can be combined into a full value. They follow the layout of the special items on screen, with the lowest bit indicating the first item.

[[File:HeroQuest_Special.png]]

The special items are:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on !! Remarks
|-
| 1 || 00000001 || 0x01 || Borin's Armour || Body || Despite showing a helmet as icon, this item is considered body armour and can be combined with the helmet.
|-
| 2 || 00000010 || 0x02 || Wand of Recall || None || Can't be equipped.
|-
| 3 || 00000100 || 0x04 || Talisman of Lore || None || Can't be equipped.
|-
| 4 || 00001000 || 0x08 || Orc's Bane || Primary hand ||
|-
| 5 || 00010000 || 0x10 || Spirit Blade || Primary hand ||
|}

Examples for the ownership bits:

* 00000001 = 01 = Borin's Armour Only
* 00010100 = 14 = Talisman of Lore and Spirit Blade
* 00011111 = 1F = everything

==== Spells ====

Like the other items, spells are saved as single bits that can be combined into a full value. In the save file, though, these bytes are only a placeholders for the spells once the file is loaded into memory. There are two separate 8 bit masks; the first for Water and Air, and the second for Fire and Earth.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! 0x0B Spell name (Type) !! 0x0C Spell name (Type)
|-
| 1 || 00000001 || 0x01 || Veil of mist (Water) || Courage (Fire)
|-
| 2 || 00000010 || 0x02 || Water of healing (Water) || Ball of flame (Fire)
|-
| 3 || 00000100 || 0x04 || Sleep (Water) || Fire of wrath (Fire)
|-
| 4 || 00001000 || 0x08 || Tempest (Air) || Pass through rock (Earth)
|-
| 5 || 00010000 || 0x10 || Swift wind (Air) || Rock skin (Earth)
|-
| 6 || 00100000 || 0x20 || Genie /attack (Air) || Body healing (Earth)
|-
| 7 || 01000000 || 0x40 || not used || Genie /reveal (air)
|-
| 8 || 10000000 || 0x80 || not used || not used
|}

Examples for the ownership bits:

* 00000111 = 07 = all three Water (0B) or Fire (0C) spells
* 00111000 = 38 = all three Air (0B) or Earth (0C) spells
* 00111111 = 3F = all Water and Air (0B) or Fire and Earth (0C) spells
* 00000100 = 04 = only sleep (0B) or fire of wrath (0C) spell

==== Spells cast by HERO ====

This time it doesn't seem to be a bit mask, just plain hex values used to populate the effect slot (0x18), remove the spell in 0x0B or 0x0C and then erased.

{|class="wikitable"
! Hex value !! Spell Name !! Spell effect !! LOS required !! Duration
|-
| 0x01 || Veil of mist (Water) || Invisibility || yes || one monster turn
|-
| 0x02 || Water of healing (Water) || Cure 4 body points || yes || permanent
|-
| 0x03 || Sleep (Water) || Lose N turns || yes || until attacked or if he rolls a 6
|-
| 0x04 || Tempest (Air) || Lose a turn || yes || one monster turn
|-
| 0x05 || Swift wind (Air) || 2x movement || yes || next movement phase
|-
| 0x06 || Genie (Air) || 5 Attack dice || no || hero attack phase
|-
| 0x07 || Courage (Fire) || +2 Attack dice || yes || hero attack phase
|-
| 0x08 || Ball of flame (Fire) || 2 attack dice || yes || hero attack phase
|-
| 0x09 || Fire of wrath (Fire) || 1 Attack dice || no || hero attack phase
|-
| 0x0A || Pass through rock (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0B || Rock skin (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0C || Body healing (Earth) || Cure 4 body points || yes || permanent
|-
| 0x0D || Genie (Air) || Reveal a room || no || hero attack phase
|}

==== Potions ====

Potions follow the same principle of all other bit masks. The only exceptions is they get wiped once you start a new quest. This can be bypassed with a simple hack since the save and load features correctly process that byte.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Potion Name !! Potion effect
|-
| 1 || 00000001 || 0x01 || Potion of Strength || +2 attack dice in the next combat phase
|-
| 2 || 00000010 || 0x02 || Potion of Resilience || +2 defence dice in the next combat phase
|-
| 3 || 00000100 || 0x04 || Potion of Healing || +4 body points
|-
| 4 || 00001000 || 0x08 || Potion of Healing || +4 body points
|-
| 5 || 00010000 || 0x10 || Holy Water || Kills every undead in the room
|-
| 6 || 00100000 || 0x20 || Potion of Speed || 2x movement in the next movement phase
|-
| 7 || 01000000 || 0x40 || Heroic Brew || 2x attack in the next combat phase
|-
| 8 || 10000000 || 0x80 || not used ||
|}

Examples:

* 01111111 = 7F = All potions
* 00001100 = 0C = Two potions of Healing
* 00000011 = 03 = Strength and Resilience

==== Spells cast on HERO ====

Only the effects that last at least one round appear in this bit mask (0x18).
{|class="wikitable"
! Bit !! Binary value !! Hex value !! Spell Name !! Spell effect !! Duration (PC) !! Duration (board game)
|-
| 1 || 00000001 || 0x01 || Veil of mist || Invisibility || next monster phase || next monster phase
|-
| 2 || 00000010 || 0x02 || Sleep || Lose a turn || until you throw a 6|| until you throw a 6 or if attacked
|-
| 3 || 00000100 || 0x04 || Tempest || Lose a turn || next hero phase || next hero phase
|-
| 4 || 00001000 || 0x08 || Swift wind || Double movement || next movement phase || next movement phase
|-
| 5 || 00010000 || 0x10 || Courage || +2 Attack dice || next attack phase || until no monster are visible by the hero anymore
|-
| 6 || 00100000 || 0x20 || Pass through rock || Self explanatory || next movement phase || next movement phase
|-
| 7 || 01000000 || 0x40 || Rock skin || +2 Defense dice || next defense phase || until the hero suffers a wound
|-
| 8 || 10000000 || 0x80 || not used || -- || -- || --
|}

* Courage, Rock skin and sleep effects differ from the original board game.

HeroQuest Savegame Format

2026-04-11T07:37:52Z

Theruler: /* Armour Items */

The QUEST.SAV file in [[HeroQuest]] contains the saved character data. Characters can be saved between quests.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Character names, stats, gold, quest object, inventory. various stats
| Games =
{{Game|HeroQuest}}
}}

== Format ==

The file holds the 8 slots for each of the four characters of the game, split into two sections. The first section are the (in-game editable) names of all the characters, the second half contains all the characters' actual information and inventories.

Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

This is how a default savegame looks like in an hex editor:

[[File:Savegame.jpg|320px]]

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Repeats!!Default value!!Description
|-
|0x000||[[char]][17]||8||SIGMAR||Name of the Barbarian
|-
|0x088||[[char]][17]||8||GRUNGI||Name of the Dwarf
|-
|0x110||[[char]][17]||8||LADRIL||Name of the Elf
|-
|0x198||[[char]][17]||8||ZOLTAR||Name of the Wizard
|-
|0x220||[[BYTE]][26]||8||Zeroes||Inventory of the Barbarian
|-
|0x2F0||[[BYTE]][26]||8||Zeroes||Inventory of the Dwarf
|-
|0x3C0||[[BYTE]][26]||8||Zeroes||Inventory of the Elf
|-
|0x490||[[BYTE]][26]||8||Zeroes||Inventory of the Wizard
|}

== Name sections ==

The names are in typical zero-terminated format, and can be a maximum of 16 characters in length. If a savegame is edited to have data in the remaining name part, it will not be read, and the space will be cleared to zeroes when re-saved.

The name normally only accepts uppercase characters. If lowercase characters are edited into the savegame file, it becomes clear that the lowercase range of the font is used for special accented characters. Some characters in the range are completely empty, but they still offer clickable space.

[[File:HeroQuest_savegame_lowercase_name.png]]

If the first byte in a name is set to a 00 byte, the entry becomes unclickable in the user interface, effectively making it permanently unusable. There is a bug in the game where this can occur when you change the name of a character and confirm without filling in anything, and then save the character data.

== Inventory sections ==

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="4"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BAR!!style=width:2em|DWA!!style=width:2em|ELF!!style=width:2em|WIZ
|-
| 0x00 || [[BYTE]]||00||00||00||00||Character game status: 00=in menu FF=in quest
|-
| 0x01 || [[UINT8]][2]||0000||0000||0000||0000||''Placeholder'' for Hero's position on the map XXYY. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x03 || [[UINT8]]||00||00||00||00||''Placeholder'' for Hero's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 0x04 || [[UINT16LE]]||0000||0000||0000||0000||''Placeholder'' for Memory location of Hero's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 0x06 || [[UINT8]]||08||07||06||04||Body points, 0-9 shows a figure, higher values work but the game shows the rest of the fonts.
|-
| 0x07 || [[UINT8]]||02||03||04||06||Mind points, same as above.
|-
| 0x08 || [[UINT8]]||26||2C||38||44||''Placeholder'' for Hero's facing sprite. See [[HeroQuest Quest Format#Hero Positions|Hero Positions]]
|-
| 0x09 || [[UINT16LE]]||0000||0000||0000||0000||Amount of gold coins in stash (bytes "88 13" = 5000 coins)
|-
| 0x0B || [[BYTE]]||00||00||38||07||''Placeholder'' for spells bit mask during the game (Water and Air); see [[#Spells|Spells]]
|-
| 0x0C || [[BYTE]]||00||00||00||3F||''Placeholder'' for spells bit mask during the game (Fire and Earth); see [[#Spells|Spells]]
|-
| 0x0D || [[BYTE]]||00||00||00||00||Owned special items bit mask; see [[#Special Items|Special Items]].
|-
| 0x0E || [[BYTE]]||00||00||00||00||Owned weapons bit mask; see [[#Weapon Items|Weapon Items]].
|-
| 0x0F || [[BYTE]]||00||00||00||00||Owned armour bit mask; see [[#Armour Items|Armour Items]].
|-
| 0x10 || [[BYTE]]||00||00||00||00||Owned potions bit mask; see [[#Potions|Potions]]
|-
| 0x11 || [[BYTE]]||00||00||00||00||Equipped weapon. Same values as owned weapons, but only one weapon (or special weapon) can be active.
|-
| 0x12 || [[BYTE]]||00||00||00||00||Equipped special items. Same values as owned special items. Combines any equipped special weapon and armour.
|-
| 0x13 || [[BYTE]]||00||00||00||00||Equipped armour. Same values as owned armour.
|-
| 0x14 || [[UINT8]]||03||02||02||01||Base attack dice number
|-
| 0x15 || [[UINT8]]||02||02||02||02||Base defence dice number
|-
| 0x16 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast by HERO|Spells cast by HERO]] during the game
|-
| 0x17 || [[BYTE]]||00||00||00||00||''Placeholder'' for used [[#Potions|Potions]] effect bit mask during the game
|-
| 0x18 || [[BYTE]]||00||00||00||00||''Placeholder'' for [[#Spells cast on HERO|Spells cast on HERO]] bit mask during the game
|-
| 0x19 || [[UINT8]]||00||01||02||03||Character id used for attack animation and map icon (04=Sir Ragnar/Manfred)
|}

Upon loading a slot the equipment is copied in memory at these locations:
0B6B:4663 Barbarian
0B6B:467D Dwarf
0B6B:4697 Elf
0B6B:46B1 Mage
0B6B:46CA Ragnar/Manfred

=== Equipment ===

The equipment is saved in bits, which are combined into full values. So a value of 0x00 means completely empty, and 0xFF means all are enabled. The equipment bits are used for both ownership and to store which items are currently equipped.

There are three classes of equipment: weapons, armour, and special quest items. In terms of equipped items, there are limitations on which bits can effectively be combined together. The player can only equip one helmet on their head and one armour on their body, and can have a light weapon in their primary hand and a shield in their secondary hand, or the Battle Axe taking up both hands. These rules are enforced when the game evaluates the equipped item bits, taking both normal and special items into account.

==== Weapon Items ====

The Weapons follow the order of the equipment on the screen, with the lowest bit indicating the first item, but since they do not include the armour, and the Tool Kit is equipped as weapon, that one takes up the eighth weapon value.

[[File:HeroQuest_equipment.png]]

Weapon items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Staff || Primary hand
|-
| 2 || 00000010 || 0x02 || Short Sword || Primary hand
|-
| 3 || 00000100 || 0x04 || Broad Sword || Primary hand
|-
| 4 || 00001000 || 0x08 || Battle Axe || Primary and secondary hands
|-
| 5 || 00010000 || 0x10 || Crossbow || Primary hand
|-
| 6 || 00100000 || 0x20 || Hand Axe || Primary hand
|-
| 7 || 01000000 || 0x40 || Spear || Primary hand
|-
| 8 || 10000000 || 0x80 || Tool Kit || Primary hand
|}

==== Armour Items ====

Like the weapons, the Armour types follow their order on the inventory screen, with the Shield as the lowest value. The higher bits are used for special situations.

Armour items:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on
|-
| 1 || 00000001 || 0x01 || Shield || Secondary hand
|-
| 2 || 00000010 || 0x02 || Helmet || Head
|-
| 3 || 00000100 || 0x04 || Chain Mail || Body
|-
| 4 || 00001000 || 0x08 || Plate Armour || Body
|-
| 5 || 00010000 || 0x10 || Unknown / not used ||
|-
| 6 || 00100000 || 0x20 || The hero cannot attack or defend ||
|-
| 7 || 01000000 || 0x40 || Only one die for movement ||
|-
| 8 || 10000000 || 0x80 || Dwarf's toolkit ||
|-
|}

==== Special Items ====

Like the normal items, special items are saved as single bits that can be combined into a full value. They follow the layout of the special items on screen, with the lowest bit indicating the first item.

[[File:HeroQuest_Special.png]]

The special items are:

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Item !! Equipped on !! Remarks
|-
| 1 || 00000001 || 0x01 || Borin's Armour || Body || Despite showing a helmet as icon, this item is considered body armour and can be combined with the helmet.
|-
| 2 || 00000010 || 0x02 || Wand of Recall || None || Can't be equipped.
|-
| 3 || 00000100 || 0x04 || Talisman of Lore || None || Can't be equipped.
|-
| 4 || 00001000 || 0x08 || Orc's Bane || Primary hand ||
|-
| 5 || 00010000 || 0x10 || Spirit Blade || Primary hand ||
|}

Examples for the ownership bits:

* 00000001 = 01 = Borin's Armour Only
* 00010100 = 14 = Talisman of Lore and Spirit Blade
* 00011111 = 1F = everything

==== Spells ====

Like the other items, spells are saved as single bits that can be combined into a full value. In the save file, though, these bytes are only a placeholders for the spells once the file is loaded into memory. There are two separate 8 bit masks; the first for Water and Air, and the second for Fire and Earth.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! 0x0B Spell name (Type) !! 0x0C Spell name (Type)
|-
| 1 || 00000001 || 0x01 || Veil of mist (Water) || Courage (Fire)
|-
| 2 || 00000010 || 0x02 || Water of healing (Water) || Ball of flame (Fire)
|-
| 3 || 00000100 || 0x04 || Sleep (Water) || Fire of wrath (Fire)
|-
| 4 || 00001000 || 0x08 || Tempest (Air) || Pass through rock (Earth)
|-
| 5 || 00010000 || 0x10 || Swift wind (Air) || Rock skin (Earth)
|-
| 6 || 00100000 || 0x20 || Genie /attack (Air) || Body healing (Earth)
|-
| 7 || 01000000 || 0x40 || not used || Genie /reveal (air)
|-
| 8 || 10000000 || 0x80 || not used || not used
|}

Examples for the ownership bits:

* 00000111 = 07 = all three Water (0B) or Fire (0C) spells
* 00111000 = 38 = all three Air (0B) or Earth (0C) spells
* 00111111 = 3F = all Water and Air (0B) or Fire and Earth (0C) spells
* 00000100 = 04 = only sleep (0B) or fire of wrath (0C) spell

==== Spells cast by HERO ====

This time it doesn't seem to be a bit mask, just plain hex values used to populate the effect slot (0x18), remove the spell in 0x0B or 0x0C and then erased.

{|class="wikitable"
! Hex value !! Spell Name !! Spell effect !! LOS required !! Duration
|-
| 0x01 || Veil of mist (Water) || Invisibility || yes || one monster turn
|-
| 0x02 || Water of healing (Water) || Cure 4 body points || yes || permanent
|-
| 0x03 || Sleep (Water) || Lose N turns || yes || until attacked or if he rolls a 6
|-
| 0x04 || Tempest (Air) || Lose a turn || yes || one monster turn
|-
| 0x05 || Swift wind (Air) || 2x movement || yes || next movement phase
|-
| 0x06 || Genie (Air) || 5 Attack dice || no || hero attack phase
|-
| 0x07 || Courage (Fire) || +2 Attack dice || yes || hero attack phase
|-
| 0x08 || Ball of flame (Fire) || 2 attack dice || yes || hero attack phase
|-
| 0x09 || Fire of wrath (Fire) || 1 Attack dice || no || hero attack phase
|-
| 0x0A || Pass through rock (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0B || Rock skin (Earth) || +2 Defense dice || yes || next defense phase
|-
| 0x0C || Body healing (Earth) || Cure 4 body points || yes || permanent
|-
| 0x0D || Genie (Air) || Reveal a room || no || hero attack phase
|}

==== Potions ====

Potions follow the same principle of all other bit masks. The only exceptions is they get wiped once you start a new quest. This can be bypassed with a simple hack since the save and load features correctly process that byte.

{|class="wikitable"
! Bit !! Binary value !! Hex value !! Potion Name !! Potion effect
|-
| 1 || 00000001 || 0x01 || Potion of Strength || +2 attack dice in the next combat phase
|-
| 2 || 00000010 || 0x02 || Potion of Resilience || +2 defence dice in the next combat phase
|-
| 3 || 00000100 || 0x04 || Potion of Healing || +4 body points
|-
| 4 || 00001000 || 0x08 || Potion of Healing || +4 body points
|-
| 5 || 00010000 || 0x10 || Holy Water || Kills every undead in the room
|-
| 6 || 00100000 || 0x20 || Potion of Speed || 2x movement in the next movement phase
|-
| 7 || 01000000 || 0x40 || Heroic Brew || 2x attack in the next combat phase
|-
| 8 || 10000000 || 0x80 || not used ||
|}

Examples:

* 01111111 = 7F = All potions
* 00001100 = 0C = Two potions of Healing
* 00000011 = 03 = Strength and Resilience

==== Spells cast on HERO ====

Only the effects that last at least one round appear in this bit mask (0x18).
{|class="wikitable"
! Bit !! Binary value !! Hex value !! Spell Name !! Spell effect !! Duration (PC) !! Duration (board game)
|-
| 1 || 00000001 || 0x01 || Veil of mist || Invisibility || next monster phase || next monster phase
|-
| 2 || 00000010 || 0x02 || Sleep || Lose a turn || until you throw a 6|| until you throw a 6 or if attacked
|-
| 3 || 00000100 || 0x04 || Tempest || Lose a turn || next hero phase || next hero phase
|-
| 4 || 00001000 || 0x08 || Swift wind || Double movement || next movement phase || next movement phase
|-
| 5 || 00010000 || 0x10 || Courage || +2 Attack dice || next attack phase || until no monster are visible by the hero anymore
|-
| 6 || 00100000 || 0x20 || Pass through rock || Self explanatory || next movement phase || next movement phase
|-
| 7 || 01000000 || 0x40 || Rock skin || +2 Defense dice || next defense phase || until the hero suffers a wound
|-
| 8 || 10000000 || 0x80 || not used || -- || -- || --
|}

* Courage, Rock skin and sleep effects differ from the original board game.

Space Crusade Savegame Format

2026-03-21T08:32:39Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play. The very first is the temporary profile.

{|class="wikitable"
!Offset!!SI+Offset!!Data type!!Default value!!Description
|-
| 0x00 || 0x3C || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || 0x3E || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || 0x3F || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || 0x40 || [[BYTE]]||02||armour class
|-
| 0x06 || 0x41 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || 0x42 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || 0x43 || [[BYTE]]||00||80 = temporary flag that states Marine has been killed
|-
| 0x09 || 0x44 || [[BYTE]]||00||80 = ATTACK! order issued
|-
| 0x0A || 0x45 || [[BYTE]]||00||UNKNOWN
|-
| 0x0B || 0x46 || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0C || 0x47 || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0D || 0x48 || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0E || 0x49 || [[BYTE]]||80||Melta bomb selected (adds 2 red dice)
|-
| 0x0F || 0x4A || [[BYTE]]||00||80= Marine is inside the docking bay
|-
| 0x10 || 0x4B || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x11 || 0x4C || [[BYTE]]||00||80=Experimental weapon owned
|-
| 0x12 || 0x4D || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-03-13T09:10:25Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play. The very first is the temporary profile.

{|class="wikitable"
!Offset!!SI+Offset!!Data type!!Default value!!Description
|-
| 0x00 || 0x3C || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || 0x3D || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || 0x3E || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || 0x3F || [[BYTE]]||02||armour class
|-
| 0x06 || 0x41 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || 0x42 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || 0x43 || [[BYTE]]||00||80 = temporary flag that states Marine has been killed
|-
| 0x09 || 0x44 || [[BYTE]]||00||80 = ATTACK! order issued
|-
| 0x0A || 0x45 || [[BYTE]]||00||UNKNOWN
|-
| 0x0B || 0x46 || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0C || 0x47 || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0D || 0x48 || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0E || 0x49 || [[BYTE]]||80||Melta bomb selected (adds 2 red dice)
|-
| 0x0F || 0x4A || [[BYTE]]||00||80= Marine is inside the docking bay
|-
| 0x10 || 0x4B || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x11 || 0x4C || [[BYTE]]||00||80=Experimental weapon owned
|-
| 0x12 || 0x4D || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-03-10T17:56:02Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play. The very first is the temporary profile.

{|class="wikitable"
!Offset!!SI+Offset!!Data type!!Default value!!Description
|-
| 0x00 || 0x3C || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || 0x3D || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || 0x3E || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || 0x3F || [[BYTE]]||02||armour class
|-
| 0x06 || 0x41 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || 0x42 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || 0x43 || [[BYTE]]||00||80 = temporary flag that states Marine has been killed
|-
| 0x09 || 0x44 || [[BYTE]]||00||80 = ATTACK! order issued
|-
| 0x0A || 0x45 || [[BYTE]]||00||UNKNOWN
|-
| 0x0B || 0x46 || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0C || 0x47 || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0D || 0x48 || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0E || 0x49 || [[BYTE]]||80||Melta bomb selected (adds 2 red dice)
|-
| 0x0F || 0x4A || [[BYTE]]||80||UNKNOWN
|-
| 0x10 || 0x4B || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x11 || 0x4C || [[BYTE]]||00||80=Experimental weapon owned
|-
| 0x12 || 0x4D || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-03-09T18:46:16Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play. The very first is the temporary profile.

{|class="wikitable"
!Offset!!SI+Offset!!Data type!!Default value!!Description
|-
| 0x00 || 0x3C || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || 0x3D || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || 0x3E || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || 0x3F || [[BYTE]]||02||armour class
|-
| 0x06 || 0x41 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || 0x42 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || 0x43 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || 0x46 || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || 0x47 || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || 0x48 || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || 0x49 || [[BYTE]]||80||Melta bomb selected (adds 2 red dice)
|-
| 0x10 || 0x4A || [[BYTE]]||80||UNKNOWN
|-
| 0x11 || 0x4B || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x12 || 0x4C || [[BYTE]]||00||80=Experimental weapon owned
|-
| 0x13 || 0x4D || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-18T15:45:24Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||80||UNKNOWN
|-
| 0x11 || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x12 || [[BYTE]]||00||80=Experimental weapon owned
|-
| 0x13 || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-16T14:54:55Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||80||UNKNOWN
|-
| 0x11 || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x12 || [[BYTE]]||00||80=Sperimental weapon owned
|-
| 0x13 || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-16T14:54:30Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||80||UNKNOWN
|-
| 0x11 || [[BYTE]]||0B||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|-
| 0x12 || [[BYTE]]||00||Sperimental weapon owned
|-
| 0x13 || [[BYTE]]||00||UNKNOWN
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T15:36:28Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Genestealer
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T14:20:31Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| 80 = The squad participated in the mission, 00 = did not.
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with higher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T13:48:52Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| Secondary mission completed (80 = yes)
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T10:04:39Z

Theruler: /* Savegame slot sections */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]]||Savegame slot ID||Progressive number
|-
|0x02||[[UINT8]][60]||Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

In code this offset is always referred using SI+X pointer.

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T09:52:49Z

Theruler: /* Weapon types */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x06 || 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x07 || 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine, or Chapter specific equipment to other Chapter. Even change maximum steps, armour class or life points.

Space Crusade Savegame Format

2026-02-12T09:49:28Z

Theruler: /* Space Marine info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x06 || 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x07 || 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points (6 for commanders)
|-
| 0x08 || [[BYTE]][3]||00||UNKNOWN
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps (6 for commanders o light weapon)
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-12T09:46:53Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x06 || 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x07 || 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| played missions (FE1F = all) (this info is not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-11T19:47:03Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]] ||00||00||00|| Primary mission completed (80 = yes)
|-
| 0x06 || 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x07 || 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| Accomplished secondary missions (FE1F = all) (not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-09T13:06:38Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x06 || 0x04 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x07 || 0x05 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| Accomplished secondary missions (FE1F = all) (not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-09T10:28:45Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| Accomplished secondary missions (FE1F = all) (not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| UNKNOWN
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-09T10:20:10Z

Theruler: /* Squad info section */ FIX OFFSETS

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| Accomplished secondary missions (FE1F = all) (not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80|| UNKNOWN
|-
| 0x10 || 0x0E || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT16LE]] ||0000||0000||0000||Last mission score
|-
| 0x13 || 0x11 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x14 || 0x12 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x16 || 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x17 || 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x18 || 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1D || 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1F || 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2C || 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2D || 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2E || 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x32 || 0x30|| [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3C || 0x3A || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3D || 0x3B || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-08T20:14:38Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000|| Accomplished primary missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| Accomplished secondary missions (FE1F = all) (not used)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80||Unknown
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80||Unknown
|-
| 0x10 || 0x0E || [[UINT8]] ||84||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT8]] ||86||00||00||Last mission score
|-
| 0x12 || 0x10 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x14 || 0x12 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || 0x13 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || 0x14 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || 0x15 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || 0x16 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || 0x1B || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || 0x1D || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || 0x2A || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || 0x2E || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || 0x2F || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-08T19:53:04Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00|| UNKNOWN
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000||Accomplished missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT16LE]] ||0000||0000||0000|| UNKNOWN
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80||Unknown
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80||Unknown
|-
| 0x10 || 0x0E || [[UINT8]] ||84||00||00|| UNKNOWN
|-
| 0x11 || 0x0F || [[UINT8]] ||86||00||00||Last mission score
|-
| 0x12 || 0x10 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x14 || 0x12 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || 0x13 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || 0x14 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || 0x15 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || 0x16 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || 0x1B || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || 0x1D || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || 0x2A || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || 0x2E || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || 0x2F || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-08T17:44:44Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||80||80||80||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00||PADDING (?)
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges owned
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000||Accomplished missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT8]][2] ||00||00||00||PADDING (?)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80||Unknown
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80||Unknown
|-
| 0x10 || 0x0E || [[UINT8]] ||84||00||00||PADDING (?)
|-
| 0x11 || 0x0F || [[UINT8]] ||86||00||00||Last mission score
|-
| 0x12 || 0x10 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x14 || 0x12 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || 0x13 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || 0x14 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || 0x15 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || 0x16 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || 0x1B || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || 0x1D || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || 0x2A || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || 0x2E || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || 0x2F || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-08T10:33:43Z

Theruler: /* Squad info section */ ADDED SI+OFFSET CODE REFERENCE

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|SI+x!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || -- || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || 0x00 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || 0x01 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || 0x02 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x05 || 0x03 || [[UINT8]][3] ||00||00||00||PADDING (?)
|-
| 0x08 || 0x06 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x09 || 0x07 || [[UINT16LE]] ||0000||0000||0000||Accomplished missions (FE1F = all)
|-
| 0x0B || 0x09 || [[UINT8]][2] ||00||00||00||PADDING (?)
|-
| 0x0D || 0x0B || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0E || 0x0C || [[UINT8]] ||80||80||80||Unknown
|-
| 0x0F || 0x0D || [[UINT8]] ||80||80||80||Unknown
|-
| 0x10 || 0x0E || [[UINT8]] ||84||00||00||PADDING (?)
|-
| 0x11 || 0x0F || [[UINT8]] ||86||00||00||Last mission score
|-
| 0x12 || 0x10 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x14 || 0x12 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || 0x13 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || 0x14 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || 0x15 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || 0x16 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || 0x17 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || 0x18 || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || 0x19 || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || 0x1A || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || 0x1B || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || 0x1C || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || 0x1D || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || 0x1E || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || 0x1F || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || 0x20 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || 0x21 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || 0x22 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || 0x23 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || 0x24 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || 0x25 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || 0x26 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || 0x27 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || 0x28 || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || 0x29 || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || 0x2A || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || 0x2E || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || 0x2F || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || 0x35 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x38 || 0x36 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x39 || 0x37 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3A || 0x38 || [[UINT8]] ||00||00||00|| UNKNOWN
|-
| 0x3B || 0x39 || [[UINT8]] ||00||00||00|| UNKNOWN
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-01T18:55:45Z

Theruler: /* Squad info section */

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x05 || [[UINT8]][3] ||00||00||00||PADDING (?)
|-
| 0x08 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000||Accomplished missions (FE1F = all)
|-
| 0x0B || [[UINT8]][2] ||00||00||00||PADDING (?)
|-
| 0x0D || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0e || [[UINT8]][2] ||8080||8080||8080||Unknown
|-
| 0x10 || [[UINT8]] ||84||00||00||PADDING (?)
|-
| 0x11 || [[UINT8]] ||86||00||00||Last mission score
|-
| 0x12 || [[UINT16LE]] ||A001||8384||A051|| Unknown
|-
| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| 37-3B to be discovered
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-01T15:41:44Z

Theruler: added more savegame info

The *.SAV file in [[SpaceCrusade]] contains the saved Chapters data. Chapters can be saved between Missions.

{{Playerdata Infobox
| Config = No
| Savegame = Yes
| Where = Hub
| Elements = Rank, medals, inventory, various stats
| Games =
{{Game|SpaceCrusade}}
}}

== Format ==

There are three separate savegames, one for each Chapter, named BA.SAV, IF.SAV and UM.SAV

Each file holds 10 slots. And is composed by the Header and the slot sections. Positions are fixed. If you mess something up you can always delete the file; the game will always generate a default upon saving for the first time.

Each Chapter's slot is loaded in memory at different locations:
* BA DS:5491
* IF DS:557A
* UM DS:5663

The internal format is the following:

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT16LE]][2]||2 Bytes Header||Incremental number, contains the latest slot number that increments upon each save
|-
|0x02||[[char]][1700]||Savegame slots|| There are 10 slots, 170 (0xAA) bytes each
|}

== Savegame slot sections ==

{|class="wikitable"
!Offset!!Data type!!Section name!!Description
|-
|0x00||[[UINT8]][62]||Slot and Squad info||Commander rank, achievements and squad selected equipment
|-
|0x40||[[char]][18]||Last used Space Marine||here is stored the current space marine in use
|-
|0x52||[[char]][18]||Space Marine Commander||Equipment, status, game flags and position on map
|-
|0x64||[[char]][18]||Space Marine 1||Equipment, status, game flags and position on map
|-
|0x76||[[char]][18]||Space Marine 2||Equipment, status, game flags and position on map
|-
|0x88||[[char]][18]||Space Marine 3||Equipment, status, game flags and position on map
|-
|0x9A||[[char]][18]||Space Marine 4||Equipment, status, game flags and position on map
|}

=== Squad info section ===

{|class="wikitable"
!rowspan="2"|Offset!!rowspan="2"|Data type!!colspan="3"|Default values!!rowspan="2"|Description
|-
!style=width:2em|BA!!style=width:2em|IF!!style=width:2em|UM
|-
| 0x00 || [[UINT16LE]] ||00||00||00||savegame progressive number
|-
| 0x02 || [[UINT8]] ||01||02||03||Chapter number, automatically changes the Marine's names and starting positions
|-
| 0x03 || [[UINT8]] ||00||00||00||Commander's rank 01-seargent, 06-supremus
|-
| 0x04 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x05 || [[UINT8]][3] ||00||00||00||PADDING (?)
|-
| 0x08 || [[UINT8]] ||00||00||00||Badges available for trade = 01
|-
| 0x09 || [[UINT16LE]] ||0000||0000||0000||Accomplished missions (FE1F = all)
|-
| 0x0B || [[UINT8]][2] ||00||00||00||PADDING (?)
|-
| 0x0D || [[UINT8]] ||00||00||00||Last mission kills
|-
| 0x0e || [[UINT8]][2] ||8080||8080||8080||Unknown
|-
| 0x10 || [[UINT8]] ||00||00||00||PADDING (?)
|-
| 0x11 || [[UINT8]] ||00||00||00||Last mission score
|-
| 0x12 || [[UINT16LE]] ||A051||8384||00|| Unknown
|-

| 0x14 || [[UINT8]] ||01||01||01|| COMMANDER ORDERS slots available
|-
| 0x15 || [[UINT8]] ||04||04||04|| EQUIPMENT slots avialable
|-
| 0x16 || [[UINT8]] ||00||00||00|| COMMANDER ORDERS slots selected
|-
| 0x17 || [[BYTE]] ||00||00||00|| Fire! order (bitmask with hihìgher bit selected, 80=order selected)
|-
| 0x18 || [[BYTE]] ||00||00||00|| Move it! order
|-
| 0x19 || [[BYTE]] ||00||00||00|| Photon granades
|-
| 0x1A || [[BYTE]] ||00||00||00|| Close assualt order
|-
| 0x1B || [[BYTE]] ||00||00||00|| By sections order
|-
| 0x1C || [[BYTE]] ||00||00||00|| Heavy weapon order
|-
| 0x1D || [[UINT8]] ||00||00||00|| EQUIPMENT slots selected
|-
| 0x1E || [[BYTE]] ||00||00||00|| Targeter 1 (87= targeter on bolt rifle)
|-
| 0x1F || [[BYTE]] ||00||00||00|| Targeter 2 (84= targeter on Assault Cannon)
|-
| 0x20 || [[BYTE]] ||00||00||00|| Blind granades
|-
| 0x21 || [[BYTE]] ||00||00||00|| Bolt pistols
|-
| 0x22 || [[BYTE]] ||00||00||00|| Melta bomb
|-
| 0x23 || [[BYTE]] ||00||00||00|| Bionic arm
|-
| 0x24 || [[BYTE]] ||00||00||00|| Close assault blades
|-
| 0x25 || [[BYTE]] ||00||00||00|| Force field
|-
| 0x26 || [[BYTE]] ||00||00||00|| Bionic eye
|-
| 0x27 || [[BYTE]] ||00||00||00|| Suspensors
|-
| 0x28 || [[BYTE]] ||00||00||00|| Combi-weapon
|-
| 0x29 || [[BYTE]] ||00||00||00|| Bio-scanner
|-
| 0x2A || [[BYTE]] ||00||00||00|| Digital weapons
|-
| 0x2B || [[BYTE]] ||00||00||00|| Medi-kit
|-
| 0x2C || [[BYTE]][4] ||00||00||00|| IN-GAME squad conditions, higher bit is deselected each turn
|-
| 0x30 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Gretchins
|-
| 0x31 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Orcs
|-
| 0x32 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine
|-
| 0x33 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine with heavy weapon
|-
| 0x34 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Chaos Marine Commander
|-
| 0x35 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Androids
|-
| 0x36 || [[UINT8]] ||00||00||00|| Sum of the points collected by killing Dreadnought
|-
| 0x37 || [[UINT8]] ||00||00||00|| 37-3B to be discovered
|}

=== Space Marine info section ===

all six sections have the exact same structure that the game uses to update all the data of the specific space marine during play

{|class="wikitable"
!Offset!!Data type!!Default value!!Description
|-
| 0x00 || [[UINT8]][2]|||0000||X Y position on map grid
|-
| 0x02 || [[BYTE]]||00||2D sprite orientation orthogonals and diagonals, possible values 1-8 (1=nord)
|-
| 0x03 || [[BYTE]]||00||equipped weapon (see [[#Weapon types|Weapon types]])
|-
| 0x04 || [[BYTE]]||02||armour class
|-
| 0x06 || [[BYTE]]||80||marine present on map (alive)
|-
| 0x07 || [[BYTE]]||01||life points
|-
| 0x08 || [[BYTE]][3]||00|| PADDING (?)
|-
| 0x0C || [[BYTE]]||01||Combat action (range or close combat) available (00=performed)
|-
| 0x0D || [[BYTE]]||01||Movement action available (00=performed)
|-
| 0x0E || [[BYTE]]||04||Maximum steps
|-
| 0x0F || [[BYTE]]||80||Marine is targeted (if higher bit is set, the marine is a CC or Range target, 00=not targeted)
|-
| 0x10 || [[BYTE]]||04||UNKNOWN
|-
| 0x11 || [[BYTE]]||04||Various order condition (1=fire twice, 07=a rapporto) see [[Alien Events]]
|}

= Weapon types =

Close combat distance is 1, Ranged combat distance is unlimited but must be in line of sight. Marines and aliens block LOS.

{|class="wikitable"
! Hex value !! Weapon name !! Close combat dice !! Ranged combat dice !! Description !! Available for
|-
| 0x01 || Bolter and Power Axe || 2 RED || 2 WHITE || - || Commander
|-
| 0x02 || Power Glove and Power Sword || 2 RED and 2 WHITE || none || Close combat only || Commander
|-
| 0x03 || Heavy Bolter || 2 WHITE || 2 RED || One target || Commander
|-
| 0x04 || Assault Cannon || 2 WHITE || 2 RED || Result can be splitted among multiple targets || Space Marine
|-
| 0x05 || Missile Launcher || 2 WHITE || 2 RED || Hits an area of 3x3 || Space Marine
|-
| 0x06 || Plasma Gun || 2 WHITE || 2 RED || Shoots only orthogonally or diagonally and hits everything in line || Space Marine
|-
| 0x07 || Bolter 1 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x08 || Bolter 2 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
| 0x09 || Bolter 3 || 2 WHITE || 2 WHITE || One target || Space Marine
|-
|}

Despite the game code restrictions, savegame can be edited to duplicate weapons and assign, for example, a commander only weapon to a marine.

Space Crusade Savegame Format

2026-02-01T11:54:56Z

Theruler: /* Squad info section */

Space Crusade Savegame Format

2026-01-31T14:04:43Z

Theruler:

Space Crusade Savegame Format

2026-01-31T14:02:26Z

Theruler: initial draft

SpaceCrusade

2026-01-31T13:02:41Z

Theruler: /* File formats */

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''Space Crusade''' for DOS was developed and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1992.

Space Crusade is a science fiction strategy game converted from the Games Workshop/Milton Bradley boardgame, in which you control a commander and four marines who are sent on different missions aboard hostile alien starships. Your commander starts off as a sergeant, but he can work his way through the ranks. The game allows three players, each commanding one marine chapter each. The alien team is played by the computer.

The game is a literal conversion of the board game in the same vein as Gremlin's earlier Hero Quest. It can be best described as a turn-based board game in which the player must fulfill the primary and secondary objectives to complete the mission, which usually involves elimination of entire alien force on board or destruction of mothership etc. This game features unique 3D close-ups during the battle scenes, a feature which was later adopted by games like the X-Com series.

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618&hl= GremlinUT]
| Platform = Multi
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = Yes
| sav = No
| exe = No
| notes = A string editor for unnpacked .bin language files by DK (OldGamesItalia)
}}
{{FileFormatTool
| Name = [http://justsolve.archiveteam.org/wiki/Pro-Pack ProPack RNC de/compressor]
| Platform = DOS 16bit
| grp = Yes
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = PPIBM.exe is needed to extract/import VGA/EGA files inside the GRAPH.RNC archive
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in space.exe and they have to be manually exported/imported
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = MAPS.BIN
| Format = [[Space Crusade Map Format]]
| KnownFormat = Yes
| Desc = Binary files that contains all the game Maps
}}
{{GameFile
| Name = *.BIN
| Format = [[Space Crusade Strings Format]]
| KnownFormat = Yes
| Desc = Binary files with in-game text in four languages (ENGLISH, GERMAN, FRENCH, ITALIAN).
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = *.SAV
| Format = [[Space Crusade Savegame Format]]
| KnownFormat = Yes
| Desc = 3 Savegames file created by space.EXE, one for each of the three playable "Chapters"
}}
{{GameFile
| Name = SPACE.CFG
| Format = [[Space Crusade Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by space.exe
}}
{{GameFile
| Name = *.EXE
| Format = [[Space Crusade EXE File]]
| KnownFormat = Yes
| Desc = SPACE.EXE contains Program-related text
}}
{{GameFile
| Name = *.RLD
| Format = [[Space Crusade Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = *.ALB
| Format = [[Space Crusade Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.

[[Category:Turn-Based Strategy]]

SpaceCrusade

2026-01-31T10:59:25Z

Theruler: /* Tools */

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''Space Crusade''' for DOS was developed and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1992.

Space Crusade is a science fiction strategy game converted from the Games Workshop/Milton Bradley boardgame, in which you control a commander and four marines who are sent on different missions aboard hostile alien starships. Your commander starts off as a sergeant, but he can work his way through the ranks. The game allows three players, each commanding one marine chapter each. The alien team is played by the computer.

The game is a literal conversion of the board game in the same vein as Gremlin's earlier Hero Quest. It can be best described as a turn-based board game in which the player must fulfill the primary and secondary objectives to complete the mission, which usually involves elimination of entire alien force on board or destruction of mothership etc. This game features unique 3D close-ups during the battle scenes, a feature which was later adopted by games like the X-Com series.

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618&hl= GremlinUT]
| Platform = Multi
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = Yes
| sav = No
| exe = No
| notes = A string editor for unnpacked .bin language files by DK (OldGamesItalia)
}}
{{FileFormatTool
| Name = [http://justsolve.archiveteam.org/wiki/Pro-Pack ProPack RNC de/compressor]
| Platform = DOS 16bit
| grp = Yes
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = PPIBM.exe is needed to extract/import VGA/EGA files inside the GRAPH.RNC archive
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in space.exe and they have to be manually exported/imported
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = MAPS.BIN
| Format = [[SpaceCrusade Quest Format]]
| KnownFormat = Yes
| Desc = Binary files that contains all the game Maps
}}
{{GameFile
| Name = *.BIN
| Format = [[SpaceCrusade Strings Format]]
| KnownFormat = Yes
| Desc = Binary files with in-game text in four languages (ENGLISH, GERMAN, FRENCH, ITALIAN).
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = *.SAV
| Format = [[SpaceCrusade Savegame Format]]
| KnownFormat = Yes
| Desc = 3 Savegames file created by space.EXE, one for each of the three playable "Chapters"
}}
{{GameFile
| Name = SPACE.CFG
| Format = [[SpaceCrusade Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by space.exe
}}
{{GameFile
| Name = *.EXE
| Format = [[SpaceCrusade EXE File]]
| KnownFormat = Yes
| Desc = SPACE.EXE contains Program-related text
}}
{{GameFile
| Name = *.RLD
| Format = [[SpaceCrusade Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = *.ALB
| Format = [[SpaceCrusade Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.

[[Category:Turn-Based Strategy]]

File:Mod-SpaceCrusade.png

2026-01-31T10:52:10Z

Theruler:

File:SpaceCrusade.png

2026-01-31T10:51:16Z

Theruler:

SpaceCrusade

2026-01-31T10:48:26Z

Theruler: initial draft

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''Space Crusade''' for DOS was developed and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1992.

Space Crusade is a science fiction strategy game converted from the Games Workshop/Milton Bradley boardgame, in which you control a commander and four marines who are sent on different missions aboard hostile alien starships. Your commander starts off as a sergeant, but he can work his way through the ranks. The game allows three players, each commanding one marine chapter each. The alien team is played by the computer.

The game is a literal conversion of the board game in the same vein as Gremlin's earlier Hero Quest. It can be best described as a turn-based board game in which the player must fulfill the primary and secondary objectives to complete the mission, which usually involves elimination of entire alien force on board or destruction of mothership etc. This game features unique 3D close-ups during the battle scenes, a feature which was later adopted by games like the X-Com series.

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618&hl= GremlinUT]
| Platform = Multi
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = Yes
| sav = No
| exe = No
| notes = A string editor for unnpacked .bin language files by DK (OldGamesItalia)
}}
{{FileFormatTool
| Name = [http://justsolve.archiveteam.org/wiki/Pro-Pack ProPack RNC de/compressor]
| Platform = DOS 16bit
| grp = Yes
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = PPIBM.exe is needed to extract/import VGA/EGA files inside the GRAPH.RNC archive
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in space.exe and they have to be manually exported/imported
}}
{{FileFormatTool
| Name = [[Engie File Converter]]
| Platform = Windows
| grp = No
| map = Read
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Quest map viewer
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = MAPS.BIN
| Format = [[SpaceCrusade Quest Format]]
| KnownFormat = Yes
| Desc = Binary files that contains all the game Maps
}}
{{GameFile
| Name = *.BIN
| Format = [[SpaceCrusade Strings Format]]
| KnownFormat = Yes
| Desc = Binary files with in-game text in four languages (ENGLISH, GERMAN, FRENCH, ITALIAN).
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = *.SAV
| Format = [[SpaceCrusade Savegame Format]]
| KnownFormat = Yes
| Desc = 3 Savegames file created by space.EXE, one for each of the three playable "Chapters"
}}
{{GameFile
| Name = SPACE.CFG
| Format = [[SpaceCrusade Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by space.exe
}}
{{GameFile
| Name = *.EXE
| Format = [[SpaceCrusade EXE File]]
| KnownFormat = Yes
| Desc = SPACE.EXE contains Program-related text
}}
{{GameFile
| Name = *.RLD
| Format = [[SpaceCrusade Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = *.ALB
| Format = [[SpaceCrusade Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27618 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.

[[Category:Turn-Based Strategy]]

HeroQuest

2026-01-29T18:03:14Z

Theruler: /* Tools */

{{NeedMoreInfo}}
{{Game Infobox
| Levels = Edit
| Tiles = Edit
| Sprites = Edit
| Fullscreen = Edit
| Sound = No
| Music = No
| Text = Edit
| Story = No
| Interface = Edit
}}

'''HeroQuest''' for DOS was developed by [https://www.mobygames.com/company/3546/221b-software-development/ 221b Software Development] and Published by [https://www.mobygames.com/company/114/infogrames-studios-limited/ Gremlin Graphics Software Limited] in 1991.

It is the earliest computer implementation of the HeroQuest board game published by Milton Bradley Company in association with Games Workshop in 1989 (europe/Australia) and in 1990 (US/Canada), where you take the role of four heroes; a Barbarian, a Dwarf, an Elf and a Mage; and dive deep into the dungeon of the Witch Lord to defeat his army of monsters and finally confront his magic. It consists of 14 quests (the DOS game includes the first expansion with 10 additional quests) where you fight, search for traps or secret passages, and collect special items and gold. Said gold can be spent between missions to buy more powerful equipment.

The base mechanics are mostly the same as the boardgame (moving, attacking, defending, searching, performing magic) with some changes to enhance the gameplay on the new media (see link section).

== Tools ==

{{BeginFileFormatTools|Type=game}}
{{FileFormatTool
| Name = [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) Codec by Shelwien from Encode.su]
| Platform = Windows
| grp = Edit
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Language and Sprite/Graphic files are LZ compressed
}}
{{FileFormatTool
| Name = [https://github.com/BenCastricum/unp UNP by Ben Castricum]
| Platform = DOS
| grp = No
| map = No
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = Edit
| notes = EXE are compressed with EXEPACKER
}}
{{FileFormatTool
| Name = [https://imagej.net/ij/index.html Imagej]
| Platform = Multi
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Java Image editor that can import and export RAW files
}}
{{FileFormatTool
| Name = [[Westwood Font Editor]]
| Platform = Windows
| grp = No
| map = No
| gfx = Edit
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Font resides in intro.exe and quest.exe and they have to be manually exported/imported
}}
{{FileFormatTool
| Name = [[Engie File Converter]]
| Platform = Windows
| grp = No
| map = Read
| gfx = No
| mus = No
| sfx = No
| txt = No
| sav = No
| exe = No
| notes = Quest map viewer
}}
{{EndFileFormatTools}}

==File formats==

The following file formats are used by this game.

{{BeginGameFileList|header=false}}
{{GameFile
| Name = QUESTxx.BIN
| Format = [[HeroQuest Quest Format]]
| KnownFormat = Yes
| Desc = Binary files that contains Map, Monster, Traps layouts and Quest mission text
}}
{{GameFile
| Name = *.BIN
| Format = [[HeroQuest Strings Format]]
| KnownFormat = Yes
| Desc = Binary files with in-game text in five languages (ENGLISH, GERMAN, FRENCH, SPANISH, ITALIAN) and EQUEST.BIN with quest names.
}}
{{GameFile
| Name = *.EGA
| Format = [[Raw EGA data]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 4bpp
}}
{{GameFile
| Name = *.VGA
| Format = [[Raw VGA Image]]
| KnownFormat = Yes
| Desc = Full-screen images (320×200) and sprites RAW 8bpp
}}
{{GameFile
| Name = QUEST.SAV
| Format = [[HeroQuest Savegame Format]]
| KnownFormat = Yes
| Desc = Savegame file created by QUEST.EXE
}}
{{GameFile
| Name = QUEST.CFG
| Format = [[HeroQuest Config Format]]
| KnownFormat = Yes
| Desc = Configuration file created by HERO.EXE
}}
{{GameFile
| Name = *.EXE
| Format = [[HeroQuest EXE File]]
| KnownFormat = Yes
| Desc = QUEST.EXE contains Program-related text and the EPILOGUE, INTRO.EXE contains the INTRO panels text.
}}
{{GameFile
| Name = GAME&FX.RLD
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Roland Sound effects and Music
}}
{{GameFile
| Name = GAME&FX.ALB
| Format = [[HeroQuest Music Format]]
| KnownFormat = No
| Desc = Archive for Adlib Sound effects and Music
}}
{{EndGameFileList}}

==Research credits==

* The decompression program was done by Shelwien from [https://encode.su/threads/4069-HELP-on-a-light-compression-from-an-old-DOS-game-(HEROQUEST) encode.su forum]
* [[user:Theruler|TheRuler]] from the OldGamesItalia translation and modding project mapped the format of the BIN and the savegame files.

==Links==

* [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net forum discussion about the game] where everything started (in Italian), with research and development on the project by TheRuler.
* [http://forum.yeoldeinn.com/viewtopic.php?t=5588 Comparison forum topic on Ye Olde Inn] with all the gameplay differences between the computer game and the board game, by kurgan.

[[Category:Turn-Based Strategy]]

HeroQuest EXE File

2025-12-01T20:07:04Z

Theruler: /* Various */

The original exe is compressed with EXEPACKER, you must decompress with UNP to manipulate it.

{{Executable Infobox
| Interpreted = N
| Platform = MS-DOS
| Code = 16-bit x86
| Games = {{Game|HeroQuest}}
Memory information:''' Code segment = 01EF Data segment = 0B6B Stack segment = 25F2'''
}}

= [CODE SEGMENT] Main Routines =
These are the main routines of the game, disassembled with DOSBOX debugger and annotated.

== in-game main loop ==
01EF:0413 E8E65F call 000063FC ($+5fe6) <---- ???
01EF:0416 E8FA5F call 00006413 ($+5ffa) <---- Checks left mouse button and everityng under it
01EF:0419 C606CC40FF mov byte [40CC],FF ds:[40CC]=DFFF
01EF:041E F606923920 test byte [3992],20 ds:[3992]=9200 <---- Checks if right mouse button has been pressed
01EF:0423 7403 je 00000428 ($+3) (no jmp)
01EF:0425 E82E03 call 00000756 ($+32e) <---- ends the turn if right mouse button pressed
01EF:0428 E85963 call 00006784 ($+6359) <---- ???
01EF:042B E8A202 call 000006D0 ($+2a2) <---- ???
01EF:042E E8E564 call 00006916 ($+64e5) <---- draws in the correct order heroes and forniture
01EF:0431 E84553 call 00005779 ($+5345) <---- same as above?
01EF:0434 E8DD53 call 00005814 ($+53dd) <---- ???
01EF:043A E87B53 call 000057B8 ($+537b) <---- draws heroes, monsters, forniture and doors (not the walls)
01EF:043D E8B454 call 000058F4 ($+54b4) <---- Checks if orthogonal tiles are walkable and updates the directional arrows
01EF:0440 E8A156 call 00005AE4 ($+56a1) <---- Checks if monsters are present in the room and updates search icons
01EF:0443 E81E60 call 00006464 ($+601e) <---- activates attack, magic, treasure, traps icons
01EF:0446 E8CF60 call 00006518 ($+60cf) <---- draws yellow figures on top left
01EF:0449 E8C859 call 00005E14 ($+59c8) <---- draws glove mouse pointer
01EF:044C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0451 7503 jne 00000456 ($+3) (down)
01EF:0453 E88E5C call 000060E4 ($+5c8e) <---- ???
01EF:0456 E87E59 call 00005DD7 ($+597e) <---- Clean the previous mouse sprite
01EF:0459 E85954 call 000058B5 ($+5459) <---- Clean the previous hero sprite
01EF:045C E82100 call 00000480 ($+21) <---- Quest event checks
01EF:045F E8EC13 call 0000184E ($+13ec) <---- Checks if the hero stands on a stair tile
01EF:0462 803E973F00 cmp byte [3F97],00 ds:[3F97]=0000
01EF:0467 7403 je 0000046C ($+3) (no jmp)
01EF:0469 E8BA00 call 00000526 ($+ba) <---- End turn wrap up (resets registers and variables)
01EF:046C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0471 7401 je 00000474 ($+1) (no jmp)
01EF:0473 C3 ret
01EF:0474 803E923940 cmp byte [3992],40 ds:[3992]=9200
01EF:0479 7503 jne 0000047E ($+3) (down)
01EF:047B E94FFE jmp 000002CD ($-1b1) (up)
01EF:047E EB93 jmp short 00000413 ($-6d) (up) <--- goes back on top

== Shooting routine ==
Shooting routine (magic and throwing weapons) is utterly broken in this game. 
The code checks the map tile the projectile is above and determine if the line of sight is blocked or free. 
The way the map is coded resulted in a convoluted code that fails to check LOS. 
'''You can shoot past walls''' and always hit the target if the hero stands in contact with one wall and the target is the adjacent room exactly above or exactly to the right. 
You can also hit the target standing in the perfect diagonal like bishop's movement, and this could happen even if there are no active rooms (solid rock, but marked with 00 like rooms' inner tiles) in between. 
'''LOS is blocked''' by parallel unrevealed secret doors and opened doors. 
 

Weapon check:
01EF:0AB2 32C0 xor al,al
01EF:0AB4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- di+11 is equipped weapon. checks if it is crossbow?
01EF:0AB8 7501 jne 00000ABB ($+1) (no jmp)
01EF:0ABA C3 ret
01EF:0ABB B0FD mov al,FD <-- not crossbow
01EF:0ABD C3 ret
01EF:0ABE 807D1101 cmp byte [di+11],01 ds:[B1A7]=0000 <-- starts here
01EF:0ABF 7D11 jge 00000AD2 ($+11) (down) <-- jump if greater or equal
01EF:0AC1 0174EE add [si-12],si ds:[4DBA]=260D
01EF:0AC4 807D1102 cmp byte [di+11],02 ds:[46A8]=0010 <-- F64511/807D11 are the test/cmp of the equipped weapon
01EF:0AC8 74E8 je 00000AB2 ($-18) (up)
01EF:0ACA 807D1140 cmp byte [di+11],40 ds:[46A8]=0010
01EF:0ACE 74E2 je 00000AB2 ($-1e) (up)
01EF:0AD0 B0FC mov al,FC
01EF:0AD2 EBE0 jmp short 00000AB4 ($-20) (up)
01EF:0AD4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- crossbow
01EF:0AD8 750F jne 00000AE9 ($+f) (no jmp)
01EF:0ADA F6451120 test byte [di+11],20 ds:[46A8]=0010 <-- throwing axe
01EF:0ADE 7509 jne 00000AE9 ($+9) (no jmp)
01EF:0AE0 F6451140 test byte [di+11],40 ds:[46A8]=0010 <-- spear
01EF:0AE4 7503 jne 00000AE9 ($+3) (no jmp)
01EF:0AE6 B0FC mov al,FC
01EF:0AE8 C3 ret

SHOOTING ROUTINE STARTS HERE:
01EF:0AE9 C606B73F01 mov byte [3FB7],01 ds:[3FB7]=0301
01EF:0AEE E82B00 call 00000B1C ($+2b)
01EF:0AF1 32C0 xor al,al
01EF:0AF3 803EA83F01 cmp byte [3FA8],01 ds:[3FA8]=0001 <-- check if LOS is blocked (1)
01EF:0AF8 7401 je 00000AFB ($+1) (down)
01EF:0AFA C3 ret
01EF:0AFB B0FE mov al,FE
01EF:0AFD C606B73F00 mov byte [3FB7],00 ds:[3FB7]=0300
01EF:0B02 C3 ret

01EF:0B1C E81F06 call 0000113E ($+61f)
01EF:0B1F A0A83F mov al,[3FA8] ds:[3FA8]=0001
01EF:0B22 3401 xor al,01
01EF:0B24 A2B23F mov [3FB2],al ds:[3FB2]=0000
01EF:0B27 C3 ret

Set global variables (shooter and target position/distance):
01EF:113E 8B36D43F mov si,[3FD4] ds:[3FD4]=4DC2
01EF:1142 8A7C01 mov bh,[si+01] ds:[4DC3]=0F0A <-- Target X
01EF:1145 8A5C02 mov bl,[si+02] ds:[4DC4]=270F <-- Target Y
01EF:1148 8BCB mov cx,bx
01EF:114A 8B3E3746 mov di,[4637] ds:[4637]=4697
01EF:114E 8A7501 mov dh,[di+01] ds:[4698]=120A <-- Hero X
01EF:1151 8A5502 mov dl,[di+02] ds:[4699]=1212 <-- Hero Y
01EF:1154 8836A53F mov [3FA5],dh ds:[3FA5]=0C0C <-- Hero X saved at 3FA5
01EF:1158 8816A63F mov [3FA6],dl ds:[3FA6]=020C <-- Hero Y saved at 3FA6
01EF:115C C6069F3F00 mov byte [3F9F],00 ds:[3F9F]=0000 <-- reset projectile temp distance (area used for math)
01EF:1161 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0002 <-- reset LOS 0=free, 1=blocked
01EF:1166 B7FF mov bh,FF
01EF:1168 8AC6 mov al,dh
01EF:116A 2AC5 sub al,ch
01EF:116C 7504 jne 00001172 ($+4) (down)
01EF:116E B700 mov bh,00 <-- target is on the RIGHT (>)
01EF:1170 EB06 jmp short 00001178 ($+6) (down)
01EF:1172 7304 jnc 00001178 ($+4) (down)
01EF:1174 F6D8 neg al
01EF:1176 B701 mov bh,01 <-- target is on the LEFT (<)
01EF:1178 A2A13F mov [3FA1],al ds:[3FA1]=0301 <-- horizontal distance shooter-target saved at 3FA1
01EF:117B 8AE8 mov ch,al
01EF:117D B3FF mov bl,FF
01EF:117F 8AC2 mov al,dl
01EF:1181 2AC1 sub al,cl
01EF:1183 7504 jne 00001189 ($+4) (down)
01EF:1185 B300 mov bl,00 <-- target is UNDER (v)
01EF:1187 EB06 jmp short 0000118F ($+6) (down)
01EF:1189 7304 jnc 0000118F ($+4) (down)
01EF:118B F6D8 neg al
01EF:118D B301 mov bl,01 <-- target is ABOVE (^)
01EF:118F A2A23F mov [3FA2],al ds:[3FA2]=0003 <-- vertical distance shooter-target saved at 3FA2
01EF:1192 3AC5 cmp al,ch
01EF:1194 7240 jc 000011D6 ($+40) (no jmp)

bx (bh+bl) registry status based on target/shooter position:
{|class="wikitable"
| 0101 || 0001 || FF01
|-
| 0100 || TRGT || FF00
|-
| 01FF || 00FF || FFFF
|-
|-
|}

VERTICAL shooting routine:
01EF:1196 8ACD mov cl,ch
01EF:1198 8AE8 mov ch,al
01EF:119A 8AD0 mov dl,al
01EF:119C 000E9F3F add [3F9F],cl ds:[3F9F]=0000 <-- update projectile travelled distance
01EF:11A0 38169F3F cmp [3F9F],dl ds:[3F9F]=0000
01EF:11A4 7208 jc 000011AE ($+8) (no jmp)
01EF:11A6 28169F3F sub [3F9F],dl ds:[3F9F]=0000
01EF:11AA 003EA53F add [3FA5],bh ds:[3FA5]=0F0D <-- Temp Projectile X (d 0:F655)
01EF:11AE 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y (d 0:F656)
01EF:11B2 C706E9370000 mov word [37E9],0000 ds:[37E9]=D238 <-- set Vertical flag
01EF:11B8 882EEB37 mov [37EB],ch ds:[37EB]=F1E0 <-- distance between projectile and target
01EF:11BC 80FD01 cmp ch,01
01EF:11BF 7505 jne 000011C6 ($+5) (down)
01EF:11C1 80FBFF cmp bl,FF
01EF:11C4 7403 je 000011C9 ($+3) (no jmp)
01EF:11C6 E84B00 call 00001214 ($+4b)
01EF:11C9 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0000 <-- check if LOS is still free (0), if 1 exits
01EF:11CE 7401 je 000011D1 ($+1) (no jmp)
01EF:11D0 C3 ret
01EF:11D1 FECD dec ch
01EF:11D3 75C7 jne 0000119C ($-39) (up)
01EF:11D5 C3 ret

HORIZONTAL shooting routine:
01EF:11D6 8AD0 mov dl,al
01EF:11D8 8ACD mov cl,ch <-- it moves ch in cl
01EF:11DA 32ED xor ch,ch <-- and puts to 00 ch because uses loop (thus cx) instead of dec ch of vertical routine
01EF:11DC 00169F3F add [3F9F],dl ds:[3F9F]=0001
01EF:11E0 380E9F3F cmp [3F9F],cl ds:[3F9F]=0001
01EF:11E4 7208 jc 000011EE ($+8) (no jmp)
01EF:11E6 280E9F3F sub [3F9F],cl ds:[3F9F]=0001
01EF:11EA 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y
01EF:11EE 003EA53F add [3FA5],bh ds:[3FA5]=0F03 <-- Temp Projectile X
01EF:11F2 C706E9370100 mov word [37E9],0001 ds:[37E9]=0001 <-- set Horizontal flag
01EF:11F8 880EEB37 mov [37EB],cl ds:[37EB]=AA04 <-- distance between projectile and target
01EF:11FC 80F901 cmp cl,01
01EF:11FF 7505 jne 00001206 ($+5) (down)
01EF:1201 80FFFF cmp bh,FF
01EF:1204 7403 je 00001209 ($+3) (no jmp)
01EF:1206 E80B00 call 00001214 ($+b)
01EF:1209 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0001 <-- check if LOS is still free (0), if 1 exits
01EF:120E 7401 je 00001211 ($+1) (no jmp)
01EF:1210 C3 ret
01EF:1211 E2C9 loop 000011DC ($-37)
01EF:1213 C3 ret

Collision check routine on current tile IN WALL/DOORS map (ds:566F):
01EF:1214 53 push bx
01EF:1215 52 push dx
01EF:1216 8A36A63F mov dh,[3FA6] ds:[3FA6]=0839
01EF:121A 8A16A53F mov dl,[3FA5] ds:[3FA5]=3936
01EF:121E E85D4E call 0000607E ($+4e5d)
01EF:1221 80BF6F5600 cmp byte [bx+566F],00 ds:[576C]=8128 <-- Check if tile is 00, if true jumps to the Object map check
01EF:1226 742A je 00001252 ($+2a) (no jmp) at 0B6B:566F is where WALLS/DOORS map is stored
01EF:1228 8A876F56 mov al,[bx+566F] ds:[576C]=8128 <-- mov into al the current TILE (28=is north secret door)
01EF:122C 833EE93701 cmp word [37E9],0001 ds:[37E9]=0001 <-- 1=H, 0=V check for opened door subroutines
01EF:1231 7411 je 00001244 ($+11) (no jmp)

Vertical shoot subroutine that checks for Horizontal walls/doors:
01EF:1233 24AC and al,AC <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1235 0AC0 or al,al AC= 10101100
01EF:1237 7419 je 00001252 ($+19) (no jmp)
01EF:1239 A820 test al,20 <-- if door is Horizontal
01EF:123B 7442 je 0000127F ($+42) (down)
01EF:123D A804 test al,04 <-- if door is opened
01EF:123F 743E je 0000127F ($+3e) (down)
01EF:1241 EB0F jmp short 00001252 ($+f) (down)
01EF:1243 90 nop

Horizontal shoot subroutine that checks for Vertical walls/doors:
01EF:1244 245C and al,5C <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1246 0AC0 or al,al 5C= 01011100
01EF:1248 7408 je 00001252 ($+8) (down)
01EF:124A A810 test al,10 <-- if door is Vertical
01EF:124C 7431 je 0000127F ($+31) (down)
01EF:124E A804 test al,04 <-- if door is opened
01EF:1250 742D je 0000127F ($+2d) (down)

Collision check routine on current tile IN OBJECTS map (ds:586F):
01EF:1252 803EEB3701 cmp byte [37EB],01 ds:[37EB]=6E03 <-- checks if the projectile is about to hit the target
01EF:1257 742B je 00001284 ($+2b) (down)
01EF:1259 80BF6F5800 cmp byte [bx+586F],00 ds:[1576F]=3637 <-- checks if the tile is passable (00)
01EF:125E 740E je 0000126E ($+e) (down)
01EF:1260 8A876F58 mov al,[bx+586F] ds:[1576F]=3637 <-- ds:586F is where OBJECTS map is stored
01EF:1264 BB4649 mov bx,4946 <-- ds:4946 check
01EF:1267 D7 xlat
01EF:1268 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:126B EB17 jmp short 00001284 ($+17) (down)
01EF:126D 90 nop
01EF:126E 8A36A63F mov dh,[3FA6] ds:[3FA6]=004D
01EF:1272 8A16A53F mov dl,[3FA5] ds:[3FA5]=4D4D
01EF:1276 E80E00 call 00001287 ($+e)
01EF:1279 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:127C EB06 jmp short 00001284 ($+6) (down)
01EF:127E 90 nop
01EF:127F C606A83F01 mov byte [3FA8],01 ds:[3FA8]=BA6B <-- sets LOS as blocked (1) and exits
01EF:1284 5A pop dx
01EF:1285 5B pop bx
01EF:1286 C3 ret

Updates with random numbers the first three bytes of heroes' equipment every movement (presumably used as seed for RNG):
01EF:1287 51 push cx
01EF:1288 57 push di
01EF:1289 B90500 mov cx,0005
01EF:128C BF6346 mov di,4663 <-- first byte of Barbarian equipment in memory
01EF:128F 33C0 xor ax,ax
01EF:1291 803D00 cmp byte [di],00 ds:[6CAA]=0000
01EF:1294 740C je 000012A2 ($+c) (down)
01EF:1296 385501 cmp [di+01],dl ds:[6CAB]=0000
01EF:1299 7507 jne 000012A2 ($+7) (no jmp)
01EF:129B 387502 cmp [di+02],dh ds:[6CAC]=0000
01EF:129E 7502 jne 000012A2 ($+2) (no jmp)
01EF:12A0 B001 mov al,01
01EF:12A2 83C71A add di,001A <-- jumps to the following hero's equipment
01EF:12A5 E2EA loop 00001291 ($-16)
01EF:12A7 5F pop di
01EF:12A8 59 pop cx
01EF:12A9 C3 ret

TBD
01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5 <-- ds:5AC5 check
01EF:6088 8B07 mov ax,[bx] ds:[FF00]=3737
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

=== New shooting routine ===
Finally I came up with a proper line of sight mechanism that cover roughly 99% of the "impossible shots". There will always be a particular combiantion of monster-door-hero position that can lead to an "improbable shot", but that's it.

Direction choice routine

1ef:1198: 88 D0 mov al, dl
1ef:119a: 88 CC mov ah, cl
1ef:119c: 05 01 01 add ax, 0x101
1ef:119f: D0 E8 shr al, 1
1ef:11a1: D0 EC shr ah, 1
1ef:11a3: A3 AA 3F mov word ptr [0x3faa], ax <-- save half distance of X and Y

1ef:11a6: 30 C0 xor al, al <-- direction choice routine
1ef:11a8: 3A 0E AB 3F cmp cl, byte ptr [0x3fab] <-- check if X distance reached it's half
1ef:11ac: 74 13 je 0x11c1 <-- if YES reset X half value and change direction
1ef:11ae: 3A 16 AA 3F cmp dl, byte ptr [0x3faa] <-- check if Y distance reached it's half
1ef:11b2: 74 06 je 0x11ba <-- if YES reset Y half value and change direction
1ef:11b4: 38 CA cmp dl, cl
1ef:11b6: 7C 2B jl 0x11e3
1ef:11b8: EB 0C jmp 0x11c6
1ef:11ba: C6 06 AA 3F 00 mov byte ptr [0x3faa], 0
1ef:11bf: EB 22 jmp 0x11e3
1ef:11c1: C6 06 AB 3F 00 mov byte ptr [0x3fab], 0

Vertical
1ef:11c6: 84 D2 test dl, dl <-- vertical routine
1ef:11c8: 74 19 je 0x11e3 <-- if Y distance is zero go to horizontal routine
1ef:11ca: 00 1E A6 3F add byte ptr [0x3fa6], bl
1ef:11ce: B8 00 00 mov ax, 0
1ef:11d1: 80 FB FF cmp bl, 0xff
1ef:11d4: 75 02 jne 0x11d8
1ef:11d6: B4 1A mov ah, 0x1a
1ef:11d8: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11db: FE CA dec dl
1ef:11dd: 88 16 EB 37 mov byte ptr [0x37eb], dl
1ef:11e1: EB 1B jmp 0x11fe

Horizontal
1ef:11e3: 84 C9 test cl, cl <-- horizontal routine
1ef:11e5: 74 DF je 0x11c6 <-- if X distance is zero go to vertical routine
1ef:11e7: 00 3E A5 3F add byte ptr [0x3fa5], bh
1ef:11eb: B8 01 00 mov ax, 1
1ef:11ee: 80 FF FF cmp bh, 0xff
1ef:11f1: 75 02 jne 0x11f5
1ef:11f3: B4 01 mov ah, 1
1ef:11f5: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11f8: FE C9 dec cl
1ef:11fa: 88 0E EB 37 mov byte ptr [0x37eb], cl

1ef:11fe: E8 13 00 call 0x1214 <-- calls wall/object collision check routine
1ef:1201: 80 3E A8 3F 00 cmp byte ptr [0x3fa8], 0 <-- collision flag
1ef:1206: 74 01 je 0x1209
1ef:1208: C3 ret <-- else object or wall was HIT
1ef:1209: 88 C8 mov al, cl
1ef:120b: 00 D0 add al, dl <-- if X+Y distance is not zero
1ef:120d: 75 97 jne 0x11a6 <-- back to direction choice routine
1ef:120f: C3 ret <-- else target was HIT
1ef:1210: 90 nop
1ef:1211: 90 nop
1ef:1212: 90 nop
1ef:1213: 90 nop

Wall/object collision check routine

1ef:1214: 53 push bx
1ef:1215: 52 push dx
1ef:1216: 8A 36 A6 3F mov dh, byte ptr [0x3fa6]
1ef:121a: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:121e: E8 5D 4E call 0x607e
1ef:1221: A0 EA 37 mov al, byte ptr [0x37ea]
1ef:1224: 30 E4 xor ah, ah
1ef:1226: 01 C3 add bx, ax
1ef:1228: 8A 87 6F 56 mov al, byte ptr [bx + 0x566f] <-- checks if the tile is free (00) or occupied (30=rock)
1ef:122c: 3C 00 cmp al, 0
1ef:122e: 74 21 je 0x1251 <-- if occupied jump to specific object check
1ef:1230: 80 3E E9 37 01 cmp byte ptr [0x37e9], 1
1ef:1235: 74 0C je 0x1243
1ef:1237: A8 20 test al, 0x20 <-- Horizontal Door check
1ef:1239: 75 12 jne 0x124d
1ef:123b: A8 80 test al, 0x80 <-- Horizontal Wall check
1ef:123d: 74 12 je 0x1251
1ef:123f: EB 3E jmp 0x127f
1ef:1241: 90 nop
1ef:1242: 90 nop

1ef:1243: A8 10 test al, 0x10 <-- Vertical Door check
1ef:1245: 75 06 jne 0x124d
1ef:1247: A8 40 test al, 0x40 <-- Vertical Wall check
1ef:1249: 74 06 je 0x1251
1ef:124b: EB 32 jmp 0x127f

1ef:124d: A8 04 test al, 4 <-- opened door check
1ef:124f: 74 2E je 0x127f

1ef:1251: 8A 87 6F 58 mov al, byte ptr [bx + 0x586f] <-- specific object check
1ef:1255: BB 86 49 mov bx, 0x4986 <-- bitmask table where object properties are stored
1ef:1258: 51 push cx
1ef:1259: 88 C1 mov cl, al
1ef:125b: C0 E9 03 shr cl, 3
1ef:125e: 01 CB add bx, cx
1ef:1260: 59 pop cx
1ef:1261: 24 07 and al, 7
1ef:1263: 0F A3 07 bt word ptr [bx], ax <-- verify if the object is passable (ie. table) or not (ie. fireplace)
1ef:1266: 72 17 jb 0x127f
1ef:1268: 80 3E EB 37 00 cmp byte ptr [0x37eb], 0 <-- checks if the projectile hit the target
1ef:126d: 74 15 je 0x1284
1ef:126f: 8A 36 A6 3F mov dh, byte ptr [0x3fa6] <-- update projectile's X and Y
1ef:1273: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:1277: E8 0D 00 call 0x1287
1ef:127a: A2 A8 3F mov byte ptr [0x3fa8], al
1ef:127d: EB 05 jmp 0x1284
1ef:127f: C6 06 A8 3F 01 mov byte ptr [0x3fa8], 1
1ef:1284: 5A pop dx
1ef:1285: 5B pop bx
1ef:1286: C3 ret

== Monster attack routine ==
This first block defines the target priority: barbarian - dwarf - elf - wizard - ragnar 
It is possible to revers it forcing the monster to chose the weaker hero first reversing the logic by starting from ragnar profile and then jump backward subtracting 1A. 
See [[#Heroes' default profiles|Heroes' default profiles]] for reference.

01EF:2257 BE6346 mov si,4663 <-- starting profile offset 4663=barbarian
01EF:225A B90500 mov cx,0005 <-- loop repeats 5 times
01EF:225D 51 push cx
01EF:225E 8936D63F mov [3FD6],si ds:[3FD6]=46B1
01EF:2262 8A4419 mov al,[si+19] ds:[46CA]=0003 <-- jumps to hero's ID position
01EF:2265 A2BC3F mov [3FBC],al ds:[3FBC]=0003
01EF:2268 E85800 call 000022C3 ($+58)
01EF:226B 59 pop cx
01EF:226C 8B36D63F mov si,[3FD6] ds:[3FD6]=46B1
01EF:2270 83C61A add si,001A <-- jumps to the next profile
01EF:2273 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0102
01EF:2278 7503 jne 0000227D ($+3) (down)
01EF:227A E95102 jmp 000024CE ($+251) (down)
01EF:227D 803EA83F03 cmp byte [3FA8],03 ds:[3FA8]=0102
01EF:2282 7503 jne 00002287 ($+3) (down)
01EF:2284 E94702 jmp 000024CE ($+247) (down)
01EF:2287 E2D4 loop 0000225D ($-2c)
01EF:2289 C3 ret

01EF:22C3 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000
01EF:22C8 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:22CB 7503 jne 000022D0 ($+3) (no jmp)
01EF:22CD E98101 jmp 00002451 ($+181) (down)
01EF:22D0 8A4403 mov al,[si+03] ds:[4666]=C726 <-- hero's room
01EF:22D3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room
01EF:22D6 7403 je 000022DB ($+3) (down)
01EF:22D8 E97601 jmp 00002451 ($+176) (down)
01EF:22DB F6441801 test byte [si+18],01 ds:[467B]=0000
01EF:22DF 7403 je 000022E4 ($+3) (down)
01EF:22E1 E96D01 jmp 00002451 ($+16d) (down)
01EF:22E4 8B5401 mov dx,[si+01] ds:[4664]=0D06
01EF:22E7 52 push dx
01EF:22E8 57 push di
01EF:22E9 E864F7 call 00001A50 ($-89c)
01EF:22EC 5F pop di
01EF:22ED 57 push di
01EF:22EE E84E02 call 0000253F ($+24e)
01EF:22F1 E8F03D call 000060E4 ($+3df0)
01EF:22F4 B9F401 mov cx,01F4
01EF:22F7 E88D23 call 00004687 ($+238d)
01EF:22FA 5F pop di
01EF:22FB 5A pop dx
01EF:22FC 8816A53F mov [3FA5],dl ds:[3FA5]=1106
01EF:2300 8836A63F mov [3FA6],dh ds:[3FA6]=0411
01EF:2304 BBA240 mov bx,40A2
01EF:2307 891ECA40 mov [40CA],bx ds:[40CA]=40A2
01EF:230B E8703D call 0000607E ($+3d70) <-- if jumped the monster doesn't attack when in contact

01EF:230E 81C36F54 add bx,546F
01EF:2312 8A07 mov al,[bx] ds:[3F28]=4040
01EF:2314 243F and al,3F
01EF:2316 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check. if removed the monster attack through walls and doors
01EF:2319 7403 je 0000231E ($+3) (down)
01EF:231B E93301 jmp 00002451 ($+133) (down)
01EF:231E B501 mov ch,01
01EF:2320 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:2323 2A4501 sub al,[di+01] ds:[4DB9]=0F06
01EF:2326 7504 jne 0000232C ($+4) (no jmp)
01EF:2328 B500 mov ch,00
01EF:232A EB08 jmp short 00002334 ($+8) (down)
01EF:232C 3C80 cmp al,80
01EF:232E 7204 jc 00002334 ($+4) (no jmp)
01EF:2330 F6D8 neg al
01EF:2332 B5FF mov ch,FF
01EF:2334 A2A13F mov [3FA1],al ds:[3FA1]=0100
01EF:2337 882EA33F mov [3FA3],ch ds:[3FA3]=0100
01EF:233B B501 mov ch,01
01EF:233D A0A63F mov al,[3FA6] ds:[3FA6]=0411
01EF:2340 2A4502 sub al,[di+02] ds:[4DBA]=260F
01EF:2343 7504 jne 00002349 ($+4) (no jmp)
01EF:2345 B500 mov ch,00
01EF:2347 EB08 jmp short 00002351 ($+8) (down)
01EF:2349 3C80 cmp al,80
01EF:234B 7204 jc 00002351 ($+4) (no jmp)
01EF:234D F6D8 neg al
01EF:234F B5FF mov ch,FF
01EF:2351 A2A23F mov [3FA2],al ds:[3FA2]=0001
01EF:2354 882EA43F mov [3FA4],ch ds:[3FA4]=0601
01EF:2358 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:235B 89169F3F mov [3F9F],dx ds:[3F9F]=1006
01EF:235F C606A93F00 mov byte [3FA9],00 ds:[3FA9]=0000
01EF:2364 8A5D09 mov bl,[di+09] ds:[4DC1]=8100
01EF:2367 02DB add bl,bl
01EF:2369 02DB add bl,bl
01EF:236B 025D09 add bl,[di+09] ds:[4DC1]=8100
01EF:236E 32FF xor bh,bh
01EF:2370 8A870648 mov al,[bx+4806] [illegal]
01EF:2374 A29C3F mov [3F9C],al ds:[3F9C]=0003
01EF:2377 8A0EA23F mov cl,[3FA2] ds:[3FA2]=0001
01EF:237B A0A13F mov al,[3FA1] ds:[3FA1]=0100
01EF:237E 3AC1 cmp al,cl
01EF:2380 7203 jc 00002385 ($+3) (no jmp)
01EF:2382 EB6A jmp short 000023EE ($+6a) (down)
01EF:2384 90 nop
01EF:2385 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2389 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:238D 7425 je 000023B4 ($+25) (down)
01EF:238F A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:2392 0AC0 or al,al
01EF:2394 741E je 000023B4 ($+1e) (down)
01EF:2396 02F0 add dh,al
01EF:2398 E8DD00 call 00002478 ($+dd)
01EF:239B 3CFF cmp al,FF
01EF:239D 7503 jne 000023A2 ($+3) (no jmp)
01EF:239F E9B500 jmp 00002457 ($+b5) (down)
01EF:23A2 0AC0 or al,al
01EF:23A4 750E jne 000023B4 ($+e) (no jmp)
01EF:23A6 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:23AA E8B000 call 0000245D ($+b0)
01EF:23AD 7303 jnc 000023B2 ($+3) (down)
01EF:23AF E99900 jmp 0000244B ($+99) (down)
01EF:23B2 EBD1 jmp short 00002385 ($-2f) (up)
01EF:23B4 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23B8 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23BB 3AC2 cmp al,dl
01EF:23BD 7503 jne 000023C2 ($+3) (no jmp)
01EF:23BF E98F00 jmp 00002451 ($+8f) (down)
01EF:23C2 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23C5 0AC0 or al,al
01EF:23C7 7503 jne 000023CC ($+3) (no jmp)
01EF:23C9 E98500 jmp 00002451 ($+85) (down)
01EF:23CC 02D0 add dl,al
01EF:23CE E8A700 call 00002478 ($+a7)
01EF:23D1 3CFF cmp al,FF
01EF:23D3 7503 jne 000023D8 ($+3) (no jmp)
01EF:23D5 E97F00 jmp 00002457 ($+7f) (down)
01EF:23D8 0AC0 or al,al
01EF:23DA 7403 je 000023DF ($+3) (down)
01EF:23DC EB73 jmp short 00002451 ($+73) (down)
01EF:23DE 90 nop
01EF:23DF A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23E2 32E4 xor ah,ah
01EF:23E4 E87600 call 0000245D ($+76)
01EF:23E7 7303 jnc 000023EC ($+3) (down)
01EF:23E9 EB60 jmp short 0000244B ($+60) (down)
01EF:23EB 90 nop
01EF:23EC EB97 jmp short 00002385 ($-69) (up)
01EF:23EE 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23F2 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23F5 3AC2 cmp al,dl
01EF:23F7 7426 je 0000241F ($+26) (down)
01EF:23F9 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23FC 0AC0 or al,al
01EF:23FE 741F je 0000241F ($+1f) (down)
01EF:2400 02D0 add dl,al
01EF:2402 E87300 call 00002478 ($+73)
01EF:2405 3CFF cmp al,FF
01EF:2407 7503 jne 0000240C ($+3) (no jmp)
01EF:2409 EB4C jmp short 00002457 ($+4c) (down)
01EF:240B 90 nop
01EF:240C 0AC0 or al,al
01EF:240E 750F jne 0000241F ($+f) (no jmp)
01EF:2410 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:2413 32E4 xor ah,ah
01EF:2415 E84500 call 0000245D ($+45)
01EF:2418 7303 jnc 0000241D ($+3) (down)
01EF:241A EB2F jmp short 0000244B ($+2f) (down)
01EF:241C 90 nop
01EF:241D EBCF jmp short 000023EE ($-31) (up)
01EF:241F 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2423 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:2427 7428 je 00002451 ($+28) (down)
01EF:2429 A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:242C 0AC0 or al,al
01EF:242E 7421 je 00002451 ($+21) (down)
01EF:2430 02F0 add dh,al
01EF:2432 E84300 call 00002478 ($+43)
01EF:2435 3CFF cmp al,FF
01EF:2437 741E je 00002457 ($+1e) (down)
01EF:2439 0AC0 or al,al
01EF:243B 7514 jne 00002451 ($+14) (no jmp)
01EF:243D 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:2441 E81900 call 0000245D ($+19)
01EF:2444 7303 jnc 00002449 ($+3) (down)
01EF:2446 EB03 jmp short 0000244B ($+3) (down)
01EF:2448 90 nop
01EF:2449 EBA3 jmp short 000023EE ($-5d) (up)
01EF:244B C606A83F01 mov byte [3FA8],01 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2450 C3 ret
01EF:2451 C606A83F02 mov byte [3FA8],02 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2456 C3 ret
01EF:2457 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000 <-- hero is reachable
01EF:245C C3 ret

01EF:245D 89169F3F mov [3F9F],dx ds:[3F9F]=1006 <-- called only when the monster needs to move
01EF:2461 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:2465 8807 mov [bx],al ds:[3F28]=6148
01EF:2467 886701 mov [bx+01],ah ds:[3F29]=0061
01EF:246A 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:246F FE06A93F inc byte [3FA9] ds:[3FA9]=0000
01EF:2473 FE0E9C3F dec byte [3F9C] ds:[3F9C]=0003
01EF:2477 C3 ret

01EF:2478 A0BC3F mov al,[3FBC] ds:[3FBC]=0000
01EF:247B E80139 call 00005D7F ($+3901)
01EF:247E 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:2481 7408 je 0000248B ($+8) (down)
01EF:2483 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:2486 7503 jne 0000248B ($+3) (no jmp)
01EF:2488 B0FF mov al,FF
01EF:248A C3 ret

01EF:248B B500 mov ch,00
01EF:248D 382EBC3F cmp [3FBC],ch ds:[3FBC]=0000
01EF:2491 7412 je 000024A5 ($+12) (down)
01EF:2493 8AC5 mov al,ch
01EF:2495 E8E738 call 00005D7F ($+38e7)
01EF:2498 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:249B 7408 je 000024A5 ($+8) (down)
01EF:249D 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:24A0 7503 jne 000024A5 ($+3) (no jmp)
01EF:24A2 B001 mov al,01
01EF:24A4 C3 ret
01EF:24A5 FEC5 inc ch
01EF:24A7 80FD04 cmp ch,04
01EF:24AA 75E1 jne 0000248D ($-1f) (no jmp)
01EF:24AC 52 push dx
01EF:24AD E8CE3B call 0000607E ($+3bce)
01EF:24B0 5A pop dx
01EF:24B1 81C36F58 add bx,586F
01EF:24B5 803F00 cmp byte [bx],00 ds:[3F28]=6148
01EF:24B8 7403 je 000024BD ($+3) (down)
01EF:24BA B002 mov al,02
01EF:24BC C3 ret
01EF:24BD 8A8700FC mov al,[bx-0400] ds:[3B28]=E04B
01EF:24C1 243F and al,3F
01EF:24C3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check.
01EF:24C6 7503 jne 000024CB ($+3) (no jmp)
01EF:24C8 32C0 xor al,al
01EF:24CA C3 ret
01EF:24CB B003 mov al,03
01EF:24CD C3 ret

01EF:24CE 893ED43F mov [3FD4],di ds:[3FD4]=4DB8
01EF:24D2 8A0EA93F mov cl,[3FA9] ds:[3FA9]=0001
01EF:24D6 0AC9 or cl,cl
01EF:24D8 7455 je 0000252F ($+55) (down)
01EF:24DA 32ED xor ch,ch
01EF:24DC BBA240 mov bx,40A2
01EF:24DF 891ECA40 mov [40CA],bx ds:[40CA]=40A4
01EF:24E3 51 push cx
01EF:24E4 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:24E8 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24EB E8903B call 0000607E ($+3b90)
01EF:24EE 8A8F6F58 mov cl,[bx+586F] ds:[59FB]=0000
01EF:24F2 C6876F5800 mov byte [bx+586F],00 ds:[59FB]=0000
01EF:24F7 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:24FB 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24FE 0217 add dl,[bx] ds:[018C]=1149
01EF:2500 027701 add dh,[bx+01] ds:[018D]=0611
01EF:2503 895501 mov [di+01],dx ds:[4DB9]=0F06
01EF:2506 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:250B E8703B call 0000607E ($+3b70)
01EF:250E 888F6F58 mov [bx+586F],cl ds:[AE50]=0A16
01EF:2512 81C36F54 add bx,546F
01EF:2516 895D04 mov [di+04],bx ds:[4DBC]=55E1
01EF:2519 E834F5 call 00001A50 ($-acc)
01EF:251C 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:2520 E81C00 call 0000253F ($+1c)
01EF:2523 E8BE3B call 000060E4 ($+3bbe)
01EF:2526 B9F401 mov cx,01F4
01EF:2529 E85B21 call 00004687 ($+215b) <-- 500.000 nop cycles, to slow down monster's animation
01EF:252C 59 pop cx
01EF:252D E2B4 loop 000024E3 ($-4c)
01EF:252F 51 push cx
01EF:2530 B93200 mov cx,0032
01EF:2533 E86A11 call 000036A0 ($+116a) <-- more nops
01EF:2536 E2FB loop 00002533 ($-5)
01EF:2538 59 pop cx
01EF:2539 E853F8 call 00001D8F ($-7ad) <-- here the monster attacks whein in contact with the hero
01EF:253C E99131 jmp 000056D0 ($+3191) (down)
01EF:253F 8A4502 mov al,[di+02] ds:[EF42]=3736
01EF:2542 32E4 xor ah,ah
01EF:2544 BA000A mov dx,0A00
01EF:2547 F7E2 mul dx
01EF:2549 8BD8 mov bx,ax

01EF:4687 51 push cx
01EF:4688 E820EF call 000035AB ($-10e0)
01EF:468B 59 pop cx
01EF:468C E2F9 loop 00004687 ($-7)
01EF:468E C3 ret

01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5
01EF:6088 8B07 mov ax,[bx] ds:[0130]=0101
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

== Hero's pathfinding routine ==
The pathfinder algorithm the programmer chose was a simple variation of the A*, and is perfectly implemented. You can click on any tiles on the screen even on the invisible ones outside the room. If there is a clean path, the hero will reach that tile.

01EF:6449 E8E2D4 call 0000392E ($-2b1e)
01EF:644C E85800 call 000064A7 ($+58)
01EF:644F 833CFF cmp word [si],FFFF ds:[3911]=0000
01EF:6452 7503 jne 00006457 ($+3) (down)
01EF:6454 E95F03 jmp 000067B6 ($+35f) (down)

01EF:67B6 8B16E747 mov dx,[47E7] ds:[47E7]=0087
01EF:67BA 8B2EE947 mov bp,[47E9] ds:[47E9]=0097
01EF:67BE BB2D40 mov bx,402D
01EF:67C1 BE1941 mov si,4119
01EF:67C4 B93400 mov cx,0034
01EF:67C7 51 push cx
01EF:67C8 8B4402 mov ax,[si+02] ds:[491E]=01C0
01EF:67CB 051800 add ax,0018
01EF:67CE 2BC2 sub ax,dx
01EF:67D0 7302 jnc 000067D4 ($+2) (down)
01EF:67D0 7302 jnc 000067D4 ($+2) (no jmp)
01EF:67D2 F7D8 neg ax
01EF:67D4 D1E8 shr ax,1
01EF:67D6 8B0C mov cx,[si] ds:[4119]=0044
01EF:67D8 83C108 add cx,0008
01EF:67DB 2BCD sub cx,bp
01EF:67DD 7302 jnc 000067E1 ($+2) (no jmp)
01EF:67DF F7D9 neg cx
01EF:67E1 03C1 add ax,cx
01EF:67E3 D1E8 shr ax,1
01EF:67E5 8907 mov [bx],ax ds:[402D]=0000
01EF:67E7 83C302 add bx,0002
01EF:67EA 83C604 add si,0004
01EF:67ED 59 pop cx
01EF:67EE E2D7 loop 000067C7 ($-29)
01EF:67F0 BB2D40 mov bx,402D
01EF:67F3 B8FFFF mov ax,FFFF
01EF:67F6 B93400 mov cx,0034
01EF:67F9 3B07 cmp ax,[bx] ds:[402D]=0000
01EF:67FB 7204 jc 00006801 ($+4) (down)
01EF:67FD 8B07 mov ax,[bx] ds:[4095]=0000
01EF:67FF 8BD1 mov dx,cx
01EF:6801 83C302 add bx,0002
01EF:6804 E2F3 loop 000067F9 ($-d)
01EF:6806 3D0800 cmp ax,0008
01EF:6809 7201 jc 0000680C ($+1) (no jmp)
01EF:680B C3 ret
01EF:680C BB3400 mov bx,0034
01EF:680F 2BDA sub bx,dx
01EF:6811 83FB2D cmp bx,002D
01EF:6814 720B jc 00006821 ($+b) (down)
01EF:6816 83EB2D sub bx,002D
01EF:6819 D1E3 shl bx,1
01EF:681B 8B8F034A mov cx,[bx+4A03] ds:[4A14]=0E09
01EF:681F EB06 jmp short 00006827 ($+6) (down)
01EF:6821 8A8FD649 mov cl,[bx+49D6] ds:[49E7]=1E37
01EF:6825 32ED xor ch,ch
01EF:6827 A1E43F mov ax,[3FE4] ds:[3FE4]=5574
01EF:682A 03C1 add ax,cx
01EF:682C 2D6F54 sub ax,546F
01EF:682F 8BD8 mov bx,ax
01EF:6831 81C36F56 add bx,566F
01EF:6835 3B1E110E cmp bx,[0E11] ds:[0E11]=FFFF
01EF:6839 7501 jne 0000683C ($+1) (down)
01EF:683B C3 ret
01EF:683C 8BD8 mov bx,ax
01EF:683E B500 mov ch,00
01EF:6840 3D1A00 cmp ax,001A
01EF:6843 7207 jc 0000684C ($+7) (down)
01EF:6845 2D1A00 sub ax,001A
01EF:6848 FEC5 inc ch
01EF:684A EBF4 jmp short 00006840 ($-c) (up)
01EF:684C 8AC8 mov cl,al
01EF:684E 8A876F54 mov al,[bx+546F] ds:[AC1A]=0200
01EF:6852 243F and al,3F
01EF:6854 7501 jne 00006857 ($+1) (down)
01EF:6856 C3 ret
01EF:6857 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:685C 7503 jne 00006861 ($+3) (down)
01EF:685E EB11 jmp short 00006871 ($+11) (down)
01EF:6860 90 nop
01EF:6861 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:6866 7501 jne 00006869 ($+1) (down)
01EF:6868 C3 ret
01EF:6869 80BF6F5840 cmp byte [bx+586F],40 ds:[B01A]=0101
01EF:686E 7201 jc 00006871 ($+1) (down)
01EF:6870 C3 ret
01EF:6871 8BD1 mov dx,cx
01EF:6873 51 push cx
01EF:6874 E810AA call 00001287 ($-55f0)
01EF:6877 59 pop cx
01EF:6878 0AC0 or al,al
01EF:687A 7401 je 0000687D ($+1) (down)
01EF:687C C3 ret
01EF:687D 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:6881 880EF03F mov [3FF0],cl ds:[3FF0]=0000
01EF:6885 882EF13F mov [3FF1],ch ds:[3FF1]=0000
01EF:6889 8A4501 mov al,[di+01] ds:[3913]=0000
01EF:688C A2EE3F mov [3FEE],al ds:[3FEE]=0000
01EF:688F A2F53F mov [3FF5],al ds:[3FF5]=0C02
01EF:6892 8A4502 mov al,[di+02] ds:[4665]=200C
01EF:6895 A2EF3F mov [3FEF],al ds:[3FEF]=040C
01EF:6898 A2F63F mov [3FF6],al ds:[3FF6]=000C
01EF:689B E80EC5 call 00002DAC ($-3af2)
01EF:689E 803EC83F00 cmp byte [3FC8],00 ds:[3FC8]=0000
01EF:68A3 7501 jne 000068A6 ($+1) (no jmp)
01EF:68A5 C3 ret
01EF:68A6 BB1340 mov bx,4013
01EF:68A9 891ECC3F mov [3FCC],bx ds:[3FCC]=0000
01EF:68AD C3 ret

01EF:2DAC A0EE3F mov al,[3FEE] ds:[3FEE]=0000
01EF:2DAF 2A06F03F sub al,[3FF0] ds:[3FF0]=1515
01EF:2DB3 7902 jns 00002DB7 ($+2) (no jmp)
01EF:2DB5 F6D8 neg al
01EF:2DB7 8A26EF3F mov ah,[3FEF] ds:[3FEF]=1500
01EF:2DBB 2A26F13F sub ah,[3FF1] ds:[3FF1]=3915
01EF:2DBF 7902 jns 00002DC3 ($+2) (no jmp)
01EF:2DC1 F6DC neg ah
01EF:2DC3 02C4 add al,ah
01EF:2DC5 A2E937 mov [37E9],al ds:[37E9]=3737
01EF:2DC8 A09C3F mov al,[3F9C] ds:[3F9C]=3A3A
01EF:2DCB 32E4 xor ah,ah
01EF:2DCD A3F93F mov [3FF9],ax ds:[3FF9]=3F3E
01EF:2DD0 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=3A3A
01EF:2DD5 C606C83F00 mov byte [3FC8],00 ds:[3FC8]=1515
01EF:2DDA C706F33F0000 mov word [3FF3],0000 ds:[3FF3]=1515
01EF:2DE0 C706CC3F0000 mov word [3FCC],0000 ds:[3FCC]=3B3C

Starting from memory location 0B6B:0A0E the subsequent 512 bytes are set to 1A1A x100h (256 times) by this function:
01EF:2DE6 BF0E0A mov di,0A0E
01EF:2DE9 B90001 mov cx,0100
01EF:2DEC 50 push ax
01EF:2DED B86B0B mov ax,0B6B
01EF:2DF0 8EC0 mov es,ax
01EF:2DF2 58 pop ax
01EF:2DF3 B81A1A mov ax,1A1A
01EF:2DF6 F3AB repe stosw

The code then creates a map with all possible paths of the hero:
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 07 08 09 -- 09 08
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 06 09 0A 09 08 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 05 0A 0B 0A 09 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 04 0B -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 02 01 02 01 02 03 04
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 02 -- -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 03 -- -- -- -- 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 04 -- -- -- -- 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

01EF:2DF8 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:2DFC EB74 jmp short 00002E72 ($+74) (down)
01EF:2DFE 90 nop
01EF:2DFF A0F23F mov al,[3FF2] ds:[3FF2]=0000
01EF:2E02 8B1EF33F mov bx,[3FF3] ds:[3FF3]=0000
01EF:2E06 8887FB3F mov [bx+3FFB],al ds:[411D]=0050
01EF:2E0A 43 inc bx
01EF:2E0B 3B1EF93F cmp bx,[3FF9] ds:[3FF9]=0009
01EF:2E0F 7601 jbe 00002E12 ($+1) (no jmp)
01EF:2E11 C3 ret
01EF:2E12 891EF33F mov [3FF3],bx ds:[3FF3]=0001
01EF:2E16 8A26F93F mov ah,[3FF9] ds:[3FF9]=0009
01EF:2E1A 2AE3 sub ah,bl
01EF:2E1C A0F03F mov al,[3FF0] ds:[3FF0]=0B04
01EF:2E1F 2A06F53F sub al,[3FF5] ds:[3FF5]=0B04
01EF:2E23 7902 jns 00002E27 ($+2) (down)
01EF:2E25 F6D8 neg al
01EF:2E27 3AC4 cmp al,ah
01EF:2E29 7603 jbe 00002E2E ($+3) (down)
01EF:2E2B E98400 jmp 00002EB2 ($+84) (down)
01EF:2E2E A0F13F mov al,[3FF1] ds:[3FF1]=000B
01EF:2E31 2A06F63F sub al,[3FF6] ds:[3FF6]=000B
01EF:2E35 7902 jns 00002E39 ($+2) (down)
01EF:2E37 F6D8 neg al
01EF:2E39 3AC4 cmp al,ah
01EF:2E3B 7775 ja 00002EB2 ($+75) (no jmp)
01EF:2E3D E87700 call 00002EB7 ($+77)
01EF:2E40 7270 jc 00002EB2 ($+70) (no jmp)
01EF:2E42 3E885E00 mov ds:[bp],bl ds:[007A]=0002
01EF:2E46 A0F53F mov al,[3FF5] ds:[3FF5]=0B04
01EF:2E49 3A06F03F cmp al,[3FF0] ds:[3FF0]=0B04
01EF:2E4D 7523 jne 00002E72 ($+23) (no jmp)
01EF:2E4F A0F63F mov al,[3FF6] ds:[3FF6]=000B
01EF:2E52 3A06F13F cmp al,[3FF1] ds:[3FF1]=000B
01EF:2E56 751A jne 00002E72 ($+1a) (no jmp)
01EF:2E58 881EC83F mov [3FC8],bl ds:[3FC8]=0000
01EF:2E5C 57 push di
01EF:2E5D BF1340 mov di,4013
01EF:2E60 BEFB3F mov si,3FFB
01EF:2E63 8A0EC83F mov cl,[3FC8] ds:[3FC8]=0000
01EF:2E67 32ED xor ch,ch
01EF:2E69 890EF93F mov [3FF9],cx ds:[3FF9]=0001
01EF:2E6D F3A4 repe movsb
01EF:2E6F 5F pop di
01EF:2E70 EB40 jmp short 00002EB2 ($+40) (down)
01EF:2E72 C606F23F00 mov byte [3FF2],00 ds:[3FF2]=0100
01EF:2E77 FE0EF63F dec byte [3FF6] ds:[3FF6]=000B

part of 2DF8 routine this writes the temporary math:
01EF:2E7B E881FF call 00002DFF ($-7f) <-- call itself again
01EF:2E7E FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E82 C606F23F01 mov byte [3FF2],01 ds:[3FF2]=0000
01EF:2E87 FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2E8B E871FF call 00002DFF ($-8f) <-- call itself again
01EF:2E8E FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2E92 C606F23F02 mov byte [3FF2],02 ds:[3FF2]=0000
01EF:2E97 FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E9B E861FF call 00002DFF ($-9f) <-- call itself again
01EF:2E9E FE0EF63F dec byte [3FF6] ds:[3FF6]=000B
01EF:2EA2 C606F23F03 mov byte [3FF2],03 ds:[3FF2]=0000
01EF:2EA7 FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2EAB E851FF call 00002DFF ($-af) <-- call itself again
01EF:2EAE FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2EB2 FF0EF33F dec word [3FF3] ds:[3FF3]=0000
01EF:2EB6 C3 ret

== Notable Memory locations for hero's and monster's movement ==

3F92 = CURRENT QUEST
3F93 = Hero's current tile (see tilemap below)
3F94 = ACTIVE HERO'S ROOM

3F99 =
3F9A = END TURN FLAG
3F9B = action performed?
3F9C = REMAINING STEPS
3F9D =
3F9E =
3F9F = MONSTER'S X position
3FA0 = MONSTER'S Y position
3FA1 = Horizontal distance Monster-hero
3FA2 = Vertical distance Monster-hero
3FA3-3FA4 (word) = next monster's step (see 40A2)
3FA5 = HERO'S X position
3FA6 = HERO'S Y position
3FA7 = Active hero
3FA8 = LOS 00=start 01=blocked 02=free
3FA9 = steps to take to reach the hero?
3FB5 = Target Hero ID (FF=Monster)
3FB9 = current total defense dice of the active hero during DEFENSE
3FC5 = Quest specific hero counter (usually identical to 3FC6) modified by 26E8 call
3FC5 = hero counter (complementar) 1111 = 0F = all heroes OUT modified by 26E2 call

3FD0 = WORD map ID (temporary for the quest) offset of ATTACKED monster in map memory (586F)
3FD2 = BYTE rolled skulls (by monsters or heroes)
3FD3 = BYTE rolled shields (by monsters or heroes)
3FD4 = WORD monster's profile location (during attacks)
3FD6 = WORD hero's profile location (during attacks)

3FE7 = QUEST specific OBJECTIVE (1=ACCOMPLISHED)

Memory locations for hero's movement (pathfindig)
3FEE = HERO'S X STARTING POSITION
3FEF = HERO'S Y STARTING POSITION
3FF0 = mouse click X position (X stop)
3FF1 = mouse click Y position (Y stop)
3FF2 = 03
3FF3 = FF
3FF4 = FF
3FF5 = HERO'S X POSITION (copy)
3FF6 = HERO'S Y POSITION (copy)
3FF9 = rolled movement
3FFB - 4012 = math locations that varies among 00,01,02,03, at the end every byte is set to 03 (bytes here are never cleared)
4013 -> locations with definitive hero's path (bytes here are never cleared)

hero's directional movement values:
00 = up
01 = right
02 = down
03 = left
The hero's moving animation is then delegated to the main loop routines that starts reading from 4013 till [3FF9].

4097 = infinite actions if set to a number different from 00
402C = Wand of recall extra action 00=no 01=yes
4BBC = location where TRAP special event number is put upon entering the room (FF=Searched)

40A2 = here is stored the path the monster will follow by 607E (?) call. A sequence of words that specify directional movement
00 01 = down
00 FF = up
FF 00 = left
01 00 = right
40CA = last location of the path to follow. (A640 = 2 moves)

Screen tiles layout. The tile under the current hero is saved in [3F93]
/\
/00\
/\ /\
/01\/02\
/\ /\ /\
/03\/04\/05\
/\ /\ /\ /\
/06\/07\/08\/09\
/\ /\ /\ /\ /\
/0A\/0B\/0C\/0D\/0E\
\ /\ /\ /\ /\ /\
\/0F\/10\/11\/12\/13\
\ /\ /\ /\ /\ /
\/14\/15\/16\/17\/
\ /\ /\ /\ /
\/18\/19\/1A\/
\ /\ /\ /
\/1B\/1C\/
\ /\ /
\/1D\/
\ /
\/

The hero's moving animation is delegated to the in-game main loop routines.

= [DATA SEGMENT] Main Pointers =

The file inside the exe that represents the Data Segment (every byte that is not strictly CODE) starts at offset '''0x9BE0'''. Every pointer is relative to this address. 

== Heroes' default profiles ==

offset mem pointer BP MP EQ AD DD ID
0xE243 0B6B:4663 00 00 00 00 00 00 08 02 1D 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00 00 00 Barbarian
0xE25D 0B6B:467D 00 00 00 00 00 00 07 03 32 00 00 00 00 00 00 80 00 00 00 00 02 02 00 00 00 01 Dwarf
0xE277 0B6B:4697 00 00 00 00 00 00 06 04 35 00 00 00 00 00 00 00 00 00 00 00 02 02 00 00 00 02 Elf
0xE291 0B6B:46B1 00 00 00 00 00 00 04 06 4A 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 03 Wizard
0xE2AB 0B6B:46CB 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 04 Ragnar

The byte positions are the same of [[HeroQuest Savegame Format]]. Load and save operations read and write at these addreses.

When initializing the heroes the default values are resetted by the function 01EF:78D3 that resets all values to zero and Body and Mind points to default
0x00DF74 0B6B:4394 08 07 06 04 02 Default Body point values (last one is Ragnar's)
0x0148FB 0B6B:AD1B 02 03 04 06 00 Default Mind point values

Character initialization code:
01EF:78D3 8A1E9E40 mov bl,[409E] ds:[409E]=0002
01EF:78D7 B700 mov bh,00
01EF:78D9 8B879443 mov ax,[bx+4394] ds:[4396]=0406
01EF:78DD 884406 mov [si+06],al ds:[469D]=0406 <-- sets default body points
01EF:78E0 8A871BAD mov al,[bx-52E5] ds:[FFFFAD1D]=EC8B
01EF:78E4 884407 mov [si+07],al ds:[469E]=3804 <-- sets default mind points
01EF:78E7 C6440E00 mov byte [si+0E],00 ds:[46A5]=0000 <-- resets Owned weapon
01EF:78EB C6440F00 mov byte [si+0F],00 ds:[46A6]=0000 <-- resets Owned armour
01EF:78EF C6440D00 mov byte [si+0D],00 ds:[46A4]=0000 <-- resets Owned special items
01EF:78F3 C744090000 mov word [si+09],0000 ds:[46A0]=000A <-- resets GOLD
01EF:78F8 C6441100 mov byte [si+11],00 ds:[46A8]=0000 <-- resets Equipped weapon
01EF:78FC C6441200 mov byte [si+12],00 ds:[46A9]=0000 <-- resets Equipped special item
01EF:7900 C6441300 mov byte [si+13],00 ds:[46AA]=0200 <-- resets Equipped armour
01EF:7904 885C19 mov [si+19],bl ds:[46B0]=0002 <-- refresh hero's ID
01EF:7907 803E9E4001 cmp byte [409E],01 ds:[409E]=0002 <-- if dwarf
01EF:790C 7504 jne 00007912 ($+4) (down)
01EF:790E 804C0E80 or byte [si+0E],80 ds:[46A5]=0000 <-- gives him the toolkit
01EF:7912 BB0800 mov bx,0008 <-- "The character is renewed" string
01EF:7915 E8D50F call 000088ED ($+fd5) <-- draws the scroll

== Searched room table ==

The game keeps track of the ''searched'' room by storing the value FF into two tables (treasure and traps searches) using the room number as relative offset (''bx''). 
Room numbers go from 00 to 2A so each table is 2B bytes long and every byte of the table is set to 00 at the beginnng of the quest. 
The code that puts FF into the table: 
mov byte ptr [bx+4B70h], 0FFh [0B6B:4B70] starting address of TREASURE search
mov byte ptr [bx+4B9Bh], 0FFh [0B6B:4B9B] starting address of TRAPS/SECRET PASSAGES search
NOTE: upon starting a quest, every Special event ID is put into these tables replacing the 00.

== Equipment screen ==
With ''position on screen'' is intended the string header 11XXYY

0x014863 Hero's classes label (ie. Barbarian) position on screen
0x00DF2B pointers block to default Hero's classes (5 pointers)
0x00DF35 default Hero's classes labels (5 Labels)

0x014873 Hero's name label (ie. Sigmar) position on screen
0x00E1B7 pointers block to default Hero's names
0x00E1C5 default Hero's names labels (5 Labels)

0x0141A4 first epilogue panel text (its pointer '''A5C4''' is written inside the code at offset 0x0649)
0x0143A2 second epilogue panel text (its pointer '''A7C2''' is written inside the code at offset 0x0658)

0x0147F7 actual gear prices (hexadecimal) - 4x12 = 30 Bytes (2 bytes for equipment bit mask and 2 bytes for default price, little endian)
0x01482B pointers block to single gear costs - 2xC = 18 Bytes
0x014843 price (in decimal) labels - 1F Bytes

0x01486F "GOLD" label position on screen
0x014867 gold amount position on screen (default is 0000)
0x014877 equipment names position on screen
0x01487B pointers block to the pointers in [language].bin where the item names are - 0x18 Bytes

== Various ==
Every WORD offsets are hexadecimal, little endian values.

0x00CDF3: Game font (2F0h bytes long). 8x8 - 94 chars, can be edited with Nyerguds' Westwood font editor.

0x00DCB5: Sequence of 20 bytes (4 groups of 5 bytes) with facing codes of the heroe's sprites in the 4 directions (S-E-W-N).
0x00DCC9: 4 words for sprite direction codification FF00=South ecc..
0x00DF95: Sequence of 11 groups of 4 bytes used for teleportation in "castle of mistery" quest (Room, X, Y, door direction that could be 00,01,1A)
0x00DFDC: Sequence of 21 groups of 6 words used to define furniture (first word: X,Y dimension of the frame - second word: Y,X offset in pixels from the origin tile - third word: offset of the frame in FURN.VGA)
0x00E05B: Group of 4 offsets for the walls graphics in graphics.vga (2 wariations of the left wall and 2 of the right wall).
0x00E062: 26 bytes (00 or 01) used for wall variations based on ROOM tile position number (see diamond scheme above). Basically each position has its own fixed wall texture that is displayed only if a wall is present.
0x00E3E6: List of 28 (1Ch) Groups of 5 bytes each representing Movement (BYTE), Attack (BYTE), Defense (BYTE) and Death special event offset (WORD) of each monster (00-1B).
0x00E8E8: 32 pointers (words) to the monster profiles in game.
0x00E92A: Monster's profiles location. Monsters are numbered in-game from 00 to 20h (maximum) and profiles (10 bytes) are stored starting from here (0x4D4A in memory).
0x00ED28: Sequence of 256 BYTES used as index for drawing the 2D map walls, listing all possible states of wall and doors (values from 00 to FF that refer to the graphic slot IDs inside MAPS.VGA).
0x00F64F: List of 12 pointers to magic spells specific routines into code segment.
0x00F669: List of 30 pointers to special events specific routines into code segment.
0x00F6A5: List of 30 pointers to monster's profiles location in memory (each pointer is 1A from the other).
0x00F703: VGA Palette - 300h bytes as RGB 256 colours
0x00FB9D: Position on screen of the object's name in 2D map (monsters, furniture, heroes etc...)

0x013CDD: List of 31 (words) offsets of the HEROES frame animation (attack, defense, death) in MEN.VGA
0x013D1B: List of 31 (words) frame dimensions (X,Y) of the previous corresponding frames in MEN.VGA
0x013D59: List of 31 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the previous corresponding frames in MEN.VGA
0x013D97: List of 8 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the monster animation frames in MONSTERS.VGA
0x014125: Sequence of 42 offsets (84 bytes) to the tile graphic of the rooms and corridors of isometric map (01-13 points all to 1F80, the tile for the corridors)
0x014179: Sequence of 2A bytes that are indexes of the tile graphic of the rooms and corridors of 2D map (01-13 are all 01, the index tile for the corridors)

0x014920: position on screen of a bar filled with 20h char used to delete the equipment names while moving the mouse over the icons
0x014924: Text colour (1F is white)
0x014925: Background colour (14 is transparent)
0x014943: equipment names position on screen during a quest (the subsequent 28 zeroes are the placeholder)

0x014A42: Sequence of 7 pointers in language.bin of the potion effect texts
0x00E472: Sequence of 5 pointers in language.bin of the potion finding texts (all but holy water and heroic brew, that has direct pointers inside the code)
0x00E4FE: Sequence of 1Ch pointers in language.bin of the monsters names (2D map)
0x00E536: Sequence of 30h index in maps.vga that assign names of the object (01=fallen rock, 00=all traps or hidden objects with no name, 03=Stairs) in OBJECT BLOCK order.
0x00E566: 23h bitmasks that define which object is passable by projectiles
0x00EE2D: Offsets (12) sequence of object icons in maps.vga (from ID 30 to 3B, 00D1 = fallen rock, goblin) 00D1
0x00EE45: Offsets sequence of monster's icons in maps.vga (ID 00 = 40D3 = goblin)

== Intro Sequence ==
Every text panel of the intro resides into '''INTRO.EXE''' and they're in English only. 
In order to translate them (or change the lenght of the text) you have to uncompress the exe first, then Locate every pointers of each panel. 
The data segment inside the exe starts at '''0x01C0'''. Every pointer is relative to this address. 

{|class="wikitable"
! Panel # !! default pointer value !! pointer exe offset
|-
| 1 || 0603 || 0x0212
|-
| 2 || F203 || 0x0214
|-
| 3 || 9B04 || 0x0216
|-
| 4 || 8706 || 0x0218
|-
| 5 || 7008 || 0x021A
|-
| 6 || CA0A || 0x021C
|}
The panels layout follows the same rules described under [[HeroQuest Strings Format]]

0x001675 Game font, this is the exact copy of the font in quest.exe (See various offests section above).

= Protection screen =
to restore shield protection in UNCOMPRESSED QUEST.EXE modify
offset 0x0541 from 90 90 90 to E8 DC FE (if you modify these bytes only the shield screen stays and regardless of page entered the game starts anyway)
offset 0x0549 from EB to 74

HeroQuest Quest Format

2025-11-17T17:46:27Z

Theruler: /* List of Quests */

{{Map Infobox
| Type = 2D cell-based
| Layers = N/A
| Cell dimensions = 26×19 (isometric)
| Cell viewport = max 6×5 (one single room)
| Viewport = 320×200
| Games =
{{Game|HeroQuest}}
}}

This page describes the mapping of the QUEST##.BIN files in [[HeroQuest]], which are used to describe one mission level. These files contain everything that is needed to generate a quest. The maps of the game, like in the board game, are always laid out as 26×19 squares.

In theory, with this information, it could be possible to create a mission editor for the game. The only known restrictions are to stick with the Special events list, since it is hard-coded, and that no new missions can be added (at the moment) to the 2-page in-game list. So to add missions, you need to overwrite the original quests. Since the second page is for the "Return of the Witch Lord" expansion, a new expansion (fan made, or based on official expansions like "Kellar's Keep") could be added as patch.

== Format quirks ==

* The game crashes if the file exceeds 2760h (10KB) in length.
* Some special event are hard coded in the engine, and not in the file.


== Overall structure ==

The overall structure of the file is the following:

{|class="wikitable"
!Offset!!Description & Notes
|-
| 0x000 || Map layer for rooms layout
|-
| 0x200 || Map layer for walls layout
|-
| 0x400 || Hero positions for all four heroes
|-
| 0x40C || Special Events per room for treasures
|-
| 0x437 || Special Events per room for traps and hidden doors
|-
| 0x462 || Population block, with Monsters, Objects and Quest Text
|}

The following sections will describe each of these in detail.

== Map Layers ==

The file starts with two layers specifying different properties of the same map tiles; first the rooms layout, then the walls layout, with each block using one byte per tile. These blocks only need 26*19 bytes to contain all their data, but are padded to blocks of 0x200 bytes each.

=== Rooms Layout ===

This block starts at the beginning of the file. The rooms layout determines which area on the map is part of which room. Since the game is limited to showing rooms with a maximum dimension of 6x5, all paths are chopped up into different 'rooms' as well. Rooms have numbers from 0 to 42. A value of 0 means the room is not used. Rooms 1 to 20 (0x14) are the pathways. The remaining range, from 21 to 42 (0x15 to 0x2A), are the main rooms.

The default rooms layout with coordinates:

<pre>
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19

00 01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
02 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
03 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
04 01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
05 06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 18 18 18 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
07 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
08 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
09 06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0A 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0B 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0C 0B 20 20 20 20 21 21 22 22 0C 0D 0D 0D 0D 0D 0D 0E 23 23 23 23 24 24 24 24 0F
0D 0B 20 20 20 20 26 26 26 26 27 27 27 0D 0D 28 28 28 28 23 23 23 24 24 24 24 0F
0E 0B 25 25 25 25 26 26 26 26 27 27 27 0D 0D 28 28 28 28 29 29 29 2A 2A 2A 2A 0F
0F 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
10 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
11 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
12 10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

The game only seems to accept 32 different rooms on one quest map. If a map exceeds this amount, the higher ones after 32 are used are displayed on the overhead map, and you can enter them, but no tiles are displayed. This is probably an engine limitation. Because of this, any inaccessible areas in the quest map are cleared to room 0. The numbers of the used rooms don't need to be consecutive, though, so the actual layout of the numbers is generally not changed. The few changes to room layout definitions that exist in the files all seem to be map errors. Some maps do have corridors that are shortened because of an obstruction, and in such cases the room type is generally also cleared to cut it off at that point.

Example of the first level, "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout. You can see that room 0x12 was cut off towards the north.

<pre>
01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 -- -- -- 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- -- -- -- -- 0D 0D 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 26 26 26 26 -- -- -- -- -- 28 28 28 28 23 23 23 -- -- -- -- 0F
0B -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 0F
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

=== Walls Layout ===

This block starts at offset 0x200, and, like the room IDs, is one byte per tile. The values determine the walls around each tile, any doors set in them, and any special properties of these walls or doors. South and East walls and doors are not defined, since you can get the same effect by placing a North or West ones in the adjacent room, and the southern and eastern border of the entire map are automatically walls.

Note that the perspective is isometric, so only the west (top left) and north (top right) walls are visible while playing. Because of this, some maps have errors where there are missing walls on openings that seem to lead to unused areas with room ID 00 when going to the east or south. In reality, the game will never indicate openings towards room 00 as passable, so the lack of wall makes no difference.

Each byte in this block is made up of bit flags that can be combined. However, these bits are not just settings interpreted by the code; the full value made up of these bits also creates the index used to look up the corresponding sprite graphics. Because of this, the unused bit 0x02 can be used to mod alternate graphics into wall tiles, even if it has no real meaning to the game. Here are the meanings of each separate bit:

{|class="wikitable"
! Bin value !! Hex Value !! Effect
|-
| 00000000 || 0x00 || None
|-
| 00000001 || 0x01 || Do not draw this wall. Doors show up as a frame only. This is done with walls when the area goes around a corner behind the walls, to prevent them from overlapping the floor tiles.
|-
| 00000010 || 0x02 || Not used (only appears once in Quest 3) can be used in conjunction with 4th bit to change graphic for opened secret door
|-
| 00000100 || 0x04 || The door is Open (can't be applied if secret)
|-
| 00001000 || 0x08 || The door is Secret (can't be applied if open)
|-
| 00010000 || 0x10 || Door to the West
|-
| 00100000 || 0x20 || Door to the North
|-
| 01000000 || 0x40 || Wall to the West
|-
| 10000000 || 0x80 || Wall to the North
|}

Example of the first level "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout:

<pre>
C0 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80
40 C0 80 80 80 C0 80 80 80 C0 20 80 41 -- C0 80 80 80 80 80 80 80 80 80 80 41
40 40 -- -- -- 40 -- -- -- 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 10 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 C0 80 80 80 C0 80 80 80 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 18 -- -- 40 -- 40 -- -- C0 80 80 80 90 80 80 80 40
40 40 -- -- -- 10 -- -- -- C0 80 80 -- -- 81 81 80 40 -- -- -- 40 -- -- -- 10
40 40 -- -- -- 40 -- -- -- 40 C0 80 80 80 80 80 40 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 40 -- -- -- -- -- 40 40 -- -- -- 40 -- -- -- 40
40 81 81 29 80 80 80 80 80 -- 10 -- -- -- -- -- 10 81 81 21 81 81 80 80 80 00
40 C0 80 80 80 68 80 C0 80 C0 40 -- -- -- -- -- 40 C0 80 80 20 C0 80 80 80 40
40 40 -- -- -- 40 -- 10 -- 40 40 -- -- -- -- -- 40 18 -- -- -- 40 -- -- -- 40
40 10 -- -- -- 40 -- 40 -- 40 80 80 80 80 C0 80 -- 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 60 80 80 80 40 -- -- -- -- C0 80 80 20 41 -- -- 40 -- -- -- 40
40 C0 80 80 80 40 -- -- -- 40 -- -- -- -- 40 -- -- -- C0 80 80 -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 81 81 81 80 80 20 80 80 80 80 80 80 80 80 20 80 80 80 80 80 80 80 80 80 00
</pre>

Visualised as image, you get this:

[[File:HeroQuest-Quest1.png|624px]]

Different rooms are indicated in different colours, with shades of grey used for the corridor 'rooms', and the room 0 (disabled) areas indicated in black. Doors are shown as white, secret doors as purple, drawn walls as dark red, and walls with the draw-suppression bit enabled are orange. To show the whole grid structure,
walls that are not enabled at all are indicated as dark purple.

== Hero Positions ==

At 0x400, after the two map layers, starts the hero positioning info. This gives the following structure for each hero:

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT8]]||HeroX||Cell position X-coordinate of the barbarian
|-
|0x01||[[UINT8]]||HeroY||Cell position Y-coordinate of the barbarian
|-
|0x02||[[UINT8]]||HeroFacing|| Animation frame for the hero, determining the facing.
|}

This structure occurs four times, in this order: Barbarian, Dwarf, Elf, Wizard.

This table gives the facing frames for each hero:

{|class="wikitable"
!Hero!!North!!East!!South!!West
|-
| Barbarian || 0x23 || 0x1D || 0x20 || 0x26
|-
| Dwarf || 0x2F || 0x29 || 0x2C || 0x32
|-
| Elf || 0x3B || 0x35 || 0x38 || 0x3E
|-
| Wizard || 0x47 || 0x41 || 0x44 || 0x4A
|}

== Special Events ==

The next sections, starting at 0x040C, are the Special Events. There are two of these: one for treasure searching (at 0x040C), and one for searching for traps and hidden doors (at 0x0437). They each take up 43 bytes, one for each of the room numbers specified in the [[#Rooms Layout|Rooms Layout]]. The lists seem to include the unused room 0.

The list of special events:

{|class="wikitable"
!Hex ID !! Dec ID !! Where !! Event
|-
| 0x00 || 00 || None || No event.
|-
| 0x01 || 01 || Chest || Trapped, you disarm it
|-
| 0x02 || 02 || Chest || Trapped, -1 body point
|-
| 0x03 || 03 || Cupboard || 30 coins + potion of healing
|-
| 0x04 || 04 || Chest || Trapped, -1 body point, +100 coins
|-
| 0x05 || 05 || Weapon rack || Spear
|-
| 0x06 || 06 || Chest || 50 coins + potion of healing
|-
| 0x07 || 07 || Chest || 250 coins of prince magnus, the weight slows you
|-
| 0x08 || 08 || Throne || Melar's key
|-
| 0x09 || 09 || Generic || Talisman of lore
|-
| 0x0A || 10 || Generic || Borin's armour
|-
| 0x0B || 11 || Chest || Karlen's 200 coins
|-
| 0x0C || 12 || Chest || 150 coins + wand of recall
|-
| 0x0D || 13 || Chest || 100 coins (and the chest vanishes)
|-
| 0x0E || 14 || Generic || Shield
|-
| 0x0F || 15 || Chest || Trapped, beware
|-
| 0x10 || 16 || Chest || Trapped, gargoyle awakes
|-
| 0x11 || 17 || Generic || Spirit blade
|-
| 0x12 || 18 || Chest || 200 coins
|-
| 0x13 || 19 || Chest || 200 coins
|-
| 0x14 || 20 || Chest || 300 coins
|-
| 0x15 || 21 || Chest || 100 coins + potion of healing
|-
| 0x16 || 22 || Chest || Trapped, -1 body point
|-
| 0x17 || 23 || Chest || Trapped, you disarm it
|-
| 0x18 || 24 || Table || Agrain's keys (100 coins)
|-
| 0x19 || 25 || 2 Chests || 200 coins x2
|-
| 0x1A || 26 || Chest || 350 coins
|-
| 0x1B || 27 || Chest || 250 coins
|-
| 0x1C || 28 || Throne || 500 coins
|-
| 0x1D || 29 || Chest || Potion of healing
|-
| 0x1E || 30 || Generic || Mine entrance + 5000 coins, cannot attack (Coins are fake only in the "Castle of Mystery" mission)
|}

For example, in QUEST17.BIN, the (hexadecimal) event contents are the following. Again, 00 bytes have been replaced by "--" to more clearly show the data.
<pre>
Room ID: 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A
Treasure -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- -- -- -- -- --
Traps -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 17 -- -- -- -- -- -- -- -- --
</pre>

== Population ==

The population block, starting at 0x462, takes up the rest of the file. It has a header that specifies for each section where the data can be found. All pointers in this section are relative to the start of the population block.

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT16LE]]||TextBlockStart||Relative pointer to where the [[#Quest Text Block|Quest Text Block]] starts. This is normally put at the end of the file.
|-
|0x02||[[UINT16LE]]||TextBlockSize||Size of the text block.
|-
|0x04||[[UINT16LE]]||MonstersBlockStart||Relative pointer to the [[#Monsters Block|Monsters Block]]. Each block is 10 bytes. This is normally put directly behind this header, at offset 0C.
|-
|0x06||[[UINT16LE]]||MonstersBlockSize||Size of the Monsters block. Divide by 10 to get the amount of monsters.
|-
|0x08||[[UINT16LE]]||ObjectsBlockStart||Relative pointer to the [[#Objects Block|Objects Block]].
|-
|0x0A||[[UINT16LE]]||NrOfObjects||Number of objects in the Objects Block.
|}

After this come the sections, normally in the following order:

* Monsters Block
* Objects block
* Quest Text Block
* A padding 0x00 byte. This is sometimes two bytes. Might be needed to serve as end of the last text item.

=== Monsters Block ===

Typically starts at offset 0x46E. Each monster block takes 10 bytes. The length of the full block is specified in the header in <tt>MonstersBlockSize</tt>. Divide it by 10 to know the amount of monsters.

The maximum amount of monsters the game can handle is 32, so that's most likely also the maximum amount that can be stored in this block.

==== Monster Layout ====

The monster layout is the following:

{|class="wikitable" style="width: 100%"
!Offset!!Data type!!Description & Notes
|-
| style="width:70px" | 00
| style="width:70px" | [[UINT8]]
|| Seems to be a set of bit flags. It apparently needs to be 0x81 to have a properly functioning monster. If it is set to 0x00, the monster does not appear on the map at all. If it is set to just 0x80 or just 0x01, the monster can't be attacked except by spells. Only the Death Mist on Quest 17 uses value 0x01, but its special scripted code means it can not be interacted with at all.
|-
| 01 || [[UINT8]] || X starting position, from 0x00 to 0x19. Changes during the game as the monster moves.
|-
| 02 || [[UINT8]] || Y starting position, from 0x00 to 0x12. Changes during the game as the monster moves.
|-
| 03 || [[UINT8]] || ''Placeholder'' for Monsters's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 04 || [[UINT16LE]] || ''Placeholder'' for Memory location of Monster's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 06 || [[UINT8]] || Monster condition bits, including spell effects. 0x00 = dead, 0x01 = alive, 0x02 = tempest, 0x04 = sleep. The Death Mist on Quest 17 has the highest bit (0x80) enabled.
|-
| 07 || [[UINT8]] || Higher 4 bits are for the Body points, and the lower 4 are for the Mind points, i.e. 0x13 = 1 BP, 3 MP. Changing BP doesn't affect the game though.
|-
| 08 || [[UINT8]] || Shown monster type; see monster types table below. This determines the graphics and name of the monster.
|-
| 09 || [[UINT8]] || Monster type stats; see monster types table below. This determines the Attack and Defense of the monster. This usually uses the same type as what it is shown as, but it can be changed to make the monster weaker or stronger than a monster of that type normally is. This also changes the Death Event of the monster.
|}

The first monster in the list is used as the "wandering monster" that might show up when you search a room. Its first byte is usually put to 0, so it won't show up on the map and acts purely as wandering monster template. However, it is perfectly possible to have a monster both serve as wandering monster ''and'' appear as physical entity on the map.

==== Monster Types ====

The list of monster types can be divided into four ranges:

* The 00-0C range are the normal monsters.
* The 0D-13 range are special monsters only referenced in QUEST11.BIN. These are not actually used as monsters in Quest 11, but their stats are applied to the normal monsters by putting them in the "monster type stats" field. The stats themselves are actually unchanged, but this also makes them use the special death event of these new types, triggering the quest's gold reward. The Witch Lord from this range is not used.
* The 14-1B range contains the new monsters from the expansion.
* The last monster (1B), is a dummy entry containing a copy of the Orc, which is never used.

As indicated in the previous section, the Body and Mind points can be individually changed in the monsters' profiles in each QUESTXX.BIN file. The Movement, Attack, Defense and Death special event offset listed here are hardcoded in [[HeroQuest EXE File|QUEST.EXE]].

{|class="wikitable" style="width: 100%"
! Hex ID !! Dec ID !! Monster !! Graphic !! Body !! Mind !! Movement !! Attack !! Defense !! Death special event
|-
| 0x00 || 00 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 0000
|-
| 0x01 || 01 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 0000
|-
| 0x02 || 02 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 0000
|-
| 0x03 || 03 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 0000
|-
| 0x04 || 04 || Skeleton || Skeleton || 01 || 00 || 06 || 02 || 02 || 0000
|-
| 0x05 || 05 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 0000
|-
| 0x06 || 06 || Mummy || Mummy || 02 || 00 || 04 || 03 || 04 || 0000
|-
| 0x07 || 07 || Gargoyle || Gargoyle || 03 || 04 || 06 || 04 || 04 || 0000
|-
| 0x08 || 08 || Orc Warlord Ulag || Gargoyle || 02 || 03 || 0A || 04 || 05 || 200C
|-
| 0x09 || 09 || Orc Lord Grak || Orc || 03 || 03 || 08 || 04 || 04 || 0000
|-
| 0x0A || 10 || Balur the Fire Mage || Gargoyle || 03 || 07 || 08 || 02 || 05 || 2C0C
|-
| 0x0B || 11 || Stone Chaos Warrior || Gargoyle || 01 || 01 || 01 || 02 || 06 || 0000
|-
| 0x0C || 12 || The Witch Lord || Gargoyle || 04 || 06 || 0A || 05 || 06 || 0000
|-
| 0x0D || 13 || The Witch Lord || Gargoyle || 04 || 06 || 06 || 03 || 05 || 0000
|-
| 0x0E || 14 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 4A0C
|-
| 0x0F || 15 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 520C
|-
| 0x10 || 16 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 7B0C
|-
| 0x11 || 17 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 7B0C
|-
| 0x12 || 18 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 6F0C
|-
| 0x13 || 19 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 820C
|-
| 0x14 || 20 || Spirit Rider || Chaos warrior || 03 || 03 || 08 || 04 || 03 || 0000
|-
| 0x15 || 21 || Death Mist|| No graphics || || || 06 || 04 || 03 || 0000
|-
| 0x16 || 22 || Bellthor || Gargoyle || || || 06 || 04 || 06 || B82B
|-
| 0x17 || 23 || Skulmar || Gargoyle || || || 08 || 05 || 06 || 0000
|-
| 0x18 || 24 || Doomguard || Gargoyle || || || 06 || 04 || 06 || 0000
|-
| 0x19 || 25 || Witch Kessandria || Gargoyle || || || 06 || 04 || 06 || 0000
|-
| 0x1A || 26 || The Witch Lord || Gargoyle || || || 0A || 05 || 06 || DC2B
|-
| 0x1B || 27 || Orc || Orc || || || 08 || 03 || 02 || 0000
|}

=== Objects Block ===

Each object block takes 3 bytes. The length of the list of objects is specified in the header in <tt>NrOfObjects</tt>. The full block length is <tt>NrOfObjects * 3</tt>.

The object layout is the following:

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| 00 || [[UINT8]] || X position, from 0x00 to 0x19.
|-
| 01 || [[UINT8]] || Y position, from 0x00 to 0x12.
|-
| 02 || [[UINT8]] || Object type; see table below.
|}

Objects appear to be stored in order of their ID, though it is unknown if this is a requirement.

Multi-cell objects are made up of a defining indicator on the north-west origin-cell of the object, and filler objects on the other cells. These fillers are technically invisible objects, but they are important to ensure the entire object is considered impassable by the game. Each type has its own filler type; e.g. the tables in both directions both use the "table filler block". It is important to use the correct type, since this determines the name that shows up when holding your mouse over these cells on the minimap. For example, Quest 5 has an Alchemy Table with Fireplace filler blocks, and the minimap will indeed show the wrong name on all tiles except the top left one.

The Stairs that indicate the end (and sometimes start) of the Quest map are a special case in this; each of the cells is specifically defined.

Here is the full list of known object types. Types indicated with (*) are unused in the game levels, but might exist in-game for other reasons (e.g. sprung traps).

IDs outside the range indicated in this list usually spawn bugged monsters which won't move or attack, and can't be attacked with normal weapons because they are always deemed "out of range".

{|class="wikitable"
! Hex ID !! Dec ID !! Object
|-
| 30 || 48 || Rock
|-
| 31 || 49 || Rock(*)
|-
| 32 || 50 || Pit Trap - Hidden
|-
| 33 || 51 || Pit Trap - Opened(*)
|-
| 34 || 52 || Falling Rock Trap
|-
| 35 || 53 || ?
|-
| 36 || 54 || Spear Trap
|-
| 37 || 55 || Teleport
|-
| 38 || 56 || Stairs Block 1 (NW)
|-
| 39 || 57 || Stairs Block 2 (SW)
|-
| 3A || 58 || Stairs Block 3 (NE)
|-
| 3B || 59 || Stairs Block 4 (SE)
|-
| 3C || 60 || ?
|-
| 3D || 61 || ?
|-
| 3E || 62 || ?
|-
| 3F || 63 || ?
|-
| 40 || 64 || ?
|-
| 41 || 65 || ?
|-
| 42 || 66 || Table (Filler)
|-
| 43 || 67 || ?
|-
| 44 || 68 || Torture Table (Filler)
|-
| 45 || 69 || Tomb (Filler)
|-
| 46 || 70 || Alchemy Table (Filler)
|-
| 47 || 71 || Fireplace (Filler)
|-
| 48 || 72 || Closet (Filler)
|-
| 49 || 73 || Library (Filler)
|-
| 4A || 74 || Armour Rack (Filler)
|-
| 4B || 75 || Table 2x3 (Origin)
|-
| 4C || 76 || Table 3x2 (Origin)
|-
| 4D || 77 || Torture 3x2 (Origin)
|-
| 4E || 78 || Torture 2x3 (Origin)
|-
| 4F || 79 || Alchemy 2x3 (Origin)
|-
| 50 || 80 || Alchemy 3x2 (Origin)
|-
| 51 || 81 || ?
|-
| 52 || 82 || ?
|-
| 53 || 83 || Tomb 3x2 (Origin)
|-
| 54 || 84 || Closet 1x3 (Origin)
|-
| 55 || 85 || Armour Rack 3x1 (Origin)
|-
| 56 || 86 || Library 1x3 (Origin)
|-
| 57 || 87 || Fireplace 3x1 (Origin)
|-
| 58 || 88 || Library 3x1 (Origin)
|-
| 59 || 89 || Fireplace 1x3 (Origin)
|-
| 5A || 90 || Closet 3x1 (Origin)
|-
| 5B || 91 || Armour Rack 1x3 (Origin)
|-
| 5C || 92 || Chest (South)
|-
| 5D || 93 || Chest (East)
|-
| 5E || 94 || Throne (South)
|-
| 5F || 95 || Throne (East)
|}

=== Quest Text Block ===

This block contains the briefing at the start of the Quest. Its X and Y positions are offsets on the scroll on which the text is shown.

The full block consists of any number of text chunks, without any bytes in between the chunks. The 00 byte behind the last text chunk seems to serve as end point. If this 00 byte is not present, the game will ignore the length set in the header and will keep on reading and interpreting text entries. The 00 byte is not included in the text block length in the header.

Each text chunk contained in this block is preceded by a small header consisting of an entry separator value and the X and Y coordinates.

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| [[UINT8]] || Separator || Always 0x11. Is probably used to detect where the previous entry ends.
|-
| [[UINT8]] || Y position || Y position in the scroll's matrix offsets; effectively the line number.
|-
| [[UINT8]] || X position || X position in the scroll's matrix offsets, to nicely center the text.
|}

This header is immediately followed by the text.

== List of Quests ==

The following list contains PC game specific information and differences with the boardgame version of the same quest. Quest 15-24 are from the "Return of the Witch Lord" expansion. All PC maps have a different layout than the boardgame. "Fixed" column refers to the current modding project carried out by [[User:theruler|theruler]] on [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net] (italian).

{|class="wikitable"
! Dec ID !! Hex ID !! Quest name !! Quest specific rules differences with the boardgame !! Fixed
|-
| 01 || 00 || The Maze || ||
|-
| 02 || 01 || The Rescue of Sir Ragnar || <s>The content of the rooms is revealed but the doors remain closed.</s> || Yes
|-
| 03 || 02 || Lair of the Orc Warlord || ||
|-
| 04 || 03 || Prince Magnus' Gold || ||
|-
| 05 || 04 || Melar's Maze || <s>The Stone Gargoyle trap is not implemented</s> || Yes
|-
| 06 || 05 || Legacy of the Orc Warlord || <s>The equipment is correctly removed from the heroes, but they still keep the benefits.</s> || Yes
|-
| 07 || 06 || The Lost Wizard || ||
|-
| 08 || 07 || The Fire Mage || <s>Balurs is a normal monster, doesn't have the ability to use fire magic or escape spell.</s> || Yes
|-
| 09 || 08 || Race Against Time || ||
|-
| 10 || 09 || Castle of Mystery || <s>Wandering monster instead of Ollar's text</s> / <s>inability to drop the mine gold</s> / <s>Only one hero can take the gold</s> / <s>monsters cannot step in front of doors</s> || Yes
|-
| 11 || 0A || Bastion of Chaos || ||
|-
| 12 || 0B || Barak Tor - Barrow of the Witch Lord || <s>The WL has standard movement instead of 1</s> / <s>the fake doors are not present.</s>|| Yes
|-
| 13 || 0C || Quest for the Spirit Blade || <s>The special fallen rock that blocks the backtrack of the heroes is not present.</s> || Yes
|-
| 14 || 0D || Return to Barak Tor || <s>The WL can be killed by magic rather than being totally immune</s> / <s>epilogue text is missing</s> || Yes
|-
| 15 || 0E || The Gate of Doom || <s>The doors do not automatically open upon entering the first room / there are no fake doors.</s> || Yes
|-
| 16 || 0F || The Cold Halls || Spirit raiders are weaker / and scattered on the map instead of inside their tombs || No
|-
| 17 || 10 || The Silent Passages || The Myst cannot be killed / and have a fixed movement of 6 tiles || No
|-
| 18 || 11 || The Halls of Vision || <s>Keys of Agrain are found the very room before the stairs, the mummies are normal monsters and the doors do not disappear.</s> || Yes
|-
| 19 || 12 || The Gate of Bellthor || The Bellthor is a normal monster, start attacking and doesn't wait till the last hero has entered the room, doesn't explode upon death and doesn't drain mind points. The door doesn't disappear || No
|-
| 20 || 13 || Halls of the Dead || <s>All 4 heroes are not captured and start together with all the equipment</s> / <s>WL is not present and doesn't curse the heroes when entering the central room.</s> || Yes
|-
| 21 || 14 || The Forgotten Legion || The legion is not frozen in the central room, but scattered on the map as normal monsters || No
|-
| 22 || 15 || The Forbidden Caverns || <s>There are no random monsters on the Xs</s> / no already opened doors at the beginning || Partial
|-
| 23 || 15 || The Last Gate || Kessandria is a normal monster and does not escape if attacked / doesn't cast spells / <s>is not immune to magic</s> || Partial
|-
| 24 || 17 || The Court of the Witch Lord || <s>Doomguards are normal Chaos warriors</s> / <s>Heroes start in the WL's room instead at the stairs</s> / <s>the WL is affected by all magic not only fire</s> / <s>WL doesn't summon monsters</s> / <s>Stone orcs are normal orcs.</s> || Yes
|}

HeroQuest Quest Format

2025-11-17T17:44:34Z

Theruler: /* List of Quests */

{{Map Infobox
| Type = 2D cell-based
| Layers = N/A
| Cell dimensions = 26×19 (isometric)
| Cell viewport = max 6×5 (one single room)
| Viewport = 320×200
| Games =
{{Game|HeroQuest}}
}}

This page describes the mapping of the QUEST##.BIN files in [[HeroQuest]], which are used to describe one mission level. These files contain everything that is needed to generate a quest. The maps of the game, like in the board game, are always laid out as 26×19 squares.

In theory, with this information, it could be possible to create a mission editor for the game. The only known restrictions are to stick with the Special events list, since it is hard-coded, and that no new missions can be added (at the moment) to the 2-page in-game list. So to add missions, you need to overwrite the original quests. Since the second page is for the "Return of the Witch Lord" expansion, a new expansion (fan made, or based on official expansions like "Kellar's Keep") could be added as patch.

== Format quirks ==

* The game crashes if the file exceeds 2760h (10KB) in length.
* Some special event are hard coded in the engine, and not in the file.


== Overall structure ==

The overall structure of the file is the following:

{|class="wikitable"
!Offset!!Description & Notes
|-
| 0x000 || Map layer for rooms layout
|-
| 0x200 || Map layer for walls layout
|-
| 0x400 || Hero positions for all four heroes
|-
| 0x40C || Special Events per room for treasures
|-
| 0x437 || Special Events per room for traps and hidden doors
|-
| 0x462 || Population block, with Monsters, Objects and Quest Text
|}

The following sections will describe each of these in detail.

== Map Layers ==

The file starts with two layers specifying different properties of the same map tiles; first the rooms layout, then the walls layout, with each block using one byte per tile. These blocks only need 26*19 bytes to contain all their data, but are padded to blocks of 0x200 bytes each.

=== Rooms Layout ===

This block starts at the beginning of the file. The rooms layout determines which area on the map is part of which room. Since the game is limited to showing rooms with a maximum dimension of 6x5, all paths are chopped up into different 'rooms' as well. Rooms have numbers from 0 to 42. A value of 0 means the room is not used. Rooms 1 to 20 (0x14) are the pathways. The remaining range, from 21 to 42 (0x15 to 0x2A), are the main rooms.

The default rooms layout with coordinates:

<pre>
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19

00 01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
02 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
03 01 15 15 15 15 16 16 16 16 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
04 01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 18 18 18 19 19 19 19 1A 1A 1A 1A 05
05 06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 18 18 18 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
07 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
08 06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
09 06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0A 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0B 0B 20 20 20 20 21 21 22 22 0C 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 24 24 24 24 0F
0C 0B 20 20 20 20 21 21 22 22 0C 0D 0D 0D 0D 0D 0D 0E 23 23 23 23 24 24 24 24 0F
0D 0B 20 20 20 20 26 26 26 26 27 27 27 0D 0D 28 28 28 28 23 23 23 24 24 24 24 0F
0E 0B 25 25 25 25 26 26 26 26 27 27 27 0D 0D 28 28 28 28 29 29 29 2A 2A 2A 2A 0F
0F 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
10 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
11 10 25 25 25 25 26 26 26 26 27 27 27 12 12 28 28 28 28 29 29 29 2A 2A 2A 2A 14
12 10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

The game only seems to accept 32 different rooms on one quest map. If a map exceeds this amount, the higher ones after 32 are used are displayed on the overhead map, and you can enter them, but no tiles are displayed. This is probably an engine limitation. Because of this, any inaccessible areas in the quest map are cleared to room 0. The numbers of the used rooms don't need to be consecutive, though, so the actual layout of the numbers is generally not changed. The few changes to room layout definitions that exist in the files all seem to be map errors. Some maps do have corridors that are shortened because of an obstruction, and in such cases the room type is generally also cleared to cut it off at that point.

Example of the first level, "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout. You can see that room 0x12 was cut off towards the north.

<pre>
01 01 01 01 02 02 02 02 02 02 03 03 03 03 03 03 04 04 04 04 04 04 05 05 05 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 -- -- -- -- 16 16 16 16 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
01 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 03 03 -- -- -- -- -- -- -- -- -- -- -- 05
06 1B 1B 1B 1B 1C 1C 1C 1C 17 17 17 08 08 -- -- -- 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 08 08 08 08 08 08 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 1B 1B 1B 1B 1C 1C 1C 1C 07 1F 1F 1F 1F 1F 1F 09 1D 1D 1D 1D 1E 1E 1E 1E 0A
06 06 06 06 07 07 07 07 07 07 1F 1F 1F 1F 1F 1F 09 09 09 09 09 09 0A 0A 0A 0A
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- 1F 1F 1F 1F 1F 1F 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 21 21 22 22 -- -- -- -- -- 0D 0D 0E 23 23 23 23 -- -- -- -- 0F
0B 20 20 20 20 26 26 26 26 -- -- -- -- -- 28 28 28 28 23 23 23 -- -- -- -- 0F
0B -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 0F
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 -- -- -- -- 26 26 26 26 -- -- -- -- -- 28 28 28 28 -- -- -- -- -- -- -- 14
10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14
</pre>

=== Walls Layout ===

This block starts at offset 0x200, and, like the room IDs, is one byte per tile. The values determine the walls around each tile, any doors set in them, and any special properties of these walls or doors. South and East walls and doors are not defined, since you can get the same effect by placing a North or West ones in the adjacent room, and the southern and eastern border of the entire map are automatically walls.

Note that the perspective is isometric, so only the west (top left) and north (top right) walls are visible while playing. Because of this, some maps have errors where there are missing walls on openings that seem to lead to unused areas with room ID 00 when going to the east or south. In reality, the game will never indicate openings towards room 00 as passable, so the lack of wall makes no difference.

Each byte in this block is made up of bit flags that can be combined. However, these bits are not just settings interpreted by the code; the full value made up of these bits also creates the index used to look up the corresponding sprite graphics. Because of this, the unused bit 0x02 can be used to mod alternate graphics into wall tiles, even if it has no real meaning to the game. Here are the meanings of each separate bit:

{|class="wikitable"
! Bin value !! Hex Value !! Effect
|-
| 00000000 || 0x00 || None
|-
| 00000001 || 0x01 || Do not draw this wall. Doors show up as a frame only. This is done with walls when the area goes around a corner behind the walls, to prevent them from overlapping the floor tiles.
|-
| 00000010 || 0x02 || Not used (only appears once in Quest 3) can be used in conjunction with 4th bit to change graphic for opened secret door
|-
| 00000100 || 0x04 || The door is Open (can't be applied if secret)
|-
| 00001000 || 0x08 || The door is Secret (can't be applied if open)
|-
| 00010000 || 0x10 || Door to the West
|-
| 00100000 || 0x20 || Door to the North
|-
| 01000000 || 0x40 || Wall to the West
|-
| 10000000 || 0x80 || Wall to the North
|}

Example of the first level "The Maze". 00 bytes have been replaced by "--" to more clearly show the layout:

<pre>
C0 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80
40 C0 80 80 80 C0 80 80 80 C0 20 80 41 -- C0 80 80 80 80 80 80 80 80 80 80 41
40 40 -- -- -- 40 -- -- -- 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 10 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 C0 80 80 80 C0 80 80 80 40 -- -- 41 -- 40 -- -- -- -- -- -- -- -- -- -- 41
40 40 -- -- -- 40 -- -- -- 18 -- -- 40 -- 40 -- -- C0 80 80 80 90 80 80 80 40
40 40 -- -- -- 10 -- -- -- C0 80 80 -- -- 81 81 80 40 -- -- -- 40 -- -- -- 10
40 40 -- -- -- 40 -- -- -- 40 C0 80 80 80 80 80 40 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 40 -- -- -- -- -- 40 40 -- -- -- 40 -- -- -- 40
40 81 81 29 80 80 80 80 80 -- 10 -- -- -- -- -- 10 81 81 21 81 81 80 80 80 00
40 C0 80 80 80 68 80 C0 80 C0 40 -- -- -- -- -- 40 C0 80 80 20 C0 80 80 80 40
40 40 -- -- -- 40 -- 10 -- 40 40 -- -- -- -- -- 40 18 -- -- -- 40 -- -- -- 40
40 10 -- -- -- 40 -- 40 -- 40 80 80 80 80 C0 80 -- 40 -- -- -- 40 -- -- -- 40
40 40 -- -- -- 60 80 80 80 40 -- -- -- -- C0 80 80 20 41 -- -- 40 -- -- -- 40
40 C0 80 80 80 40 -- -- -- 40 -- -- -- -- 40 -- -- -- C0 80 80 -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 40 -- -- -- 40 -- -- -- 40 -- -- -- -- 40 -- -- -- 40 -- -- -- -- -- -- 40
40 81 81 81 80 80 20 80 80 80 80 80 80 80 80 20 80 80 80 80 80 80 80 80 80 00
</pre>

Visualised as image, you get this:

[[File:HeroQuest-Quest1.png|624px]]

Different rooms are indicated in different colours, with shades of grey used for the corridor 'rooms', and the room 0 (disabled) areas indicated in black. Doors are shown as white, secret doors as purple, drawn walls as dark red, and walls with the draw-suppression bit enabled are orange. To show the whole grid structure,
walls that are not enabled at all are indicated as dark purple.

== Hero Positions ==

At 0x400, after the two map layers, starts the hero positioning info. This gives the following structure for each hero:

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT8]]||HeroX||Cell position X-coordinate of the barbarian
|-
|0x01||[[UINT8]]||HeroY||Cell position Y-coordinate of the barbarian
|-
|0x02||[[UINT8]]||HeroFacing|| Animation frame for the hero, determining the facing.
|}

This structure occurs four times, in this order: Barbarian, Dwarf, Elf, Wizard.

This table gives the facing frames for each hero:

{|class="wikitable"
!Hero!!North!!East!!South!!West
|-
| Barbarian || 0x23 || 0x1D || 0x20 || 0x26
|-
| Dwarf || 0x2F || 0x29 || 0x2C || 0x32
|-
| Elf || 0x3B || 0x35 || 0x38 || 0x3E
|-
| Wizard || 0x47 || 0x41 || 0x44 || 0x4A
|}

== Special Events ==

The next sections, starting at 0x040C, are the Special Events. There are two of these: one for treasure searching (at 0x040C), and one for searching for traps and hidden doors (at 0x0437). They each take up 43 bytes, one for each of the room numbers specified in the [[#Rooms Layout|Rooms Layout]]. The lists seem to include the unused room 0.

The list of special events:

{|class="wikitable"
!Hex ID !! Dec ID !! Where !! Event
|-
| 0x00 || 00 || None || No event.
|-
| 0x01 || 01 || Chest || Trapped, you disarm it
|-
| 0x02 || 02 || Chest || Trapped, -1 body point
|-
| 0x03 || 03 || Cupboard || 30 coins + potion of healing
|-
| 0x04 || 04 || Chest || Trapped, -1 body point, +100 coins
|-
| 0x05 || 05 || Weapon rack || Spear
|-
| 0x06 || 06 || Chest || 50 coins + potion of healing
|-
| 0x07 || 07 || Chest || 250 coins of prince magnus, the weight slows you
|-
| 0x08 || 08 || Throne || Melar's key
|-
| 0x09 || 09 || Generic || Talisman of lore
|-
| 0x0A || 10 || Generic || Borin's armour
|-
| 0x0B || 11 || Chest || Karlen's 200 coins
|-
| 0x0C || 12 || Chest || 150 coins + wand of recall
|-
| 0x0D || 13 || Chest || 100 coins (and the chest vanishes)
|-
| 0x0E || 14 || Generic || Shield
|-
| 0x0F || 15 || Chest || Trapped, beware
|-
| 0x10 || 16 || Chest || Trapped, gargoyle awakes
|-
| 0x11 || 17 || Generic || Spirit blade
|-
| 0x12 || 18 || Chest || 200 coins
|-
| 0x13 || 19 || Chest || 200 coins
|-
| 0x14 || 20 || Chest || 300 coins
|-
| 0x15 || 21 || Chest || 100 coins + potion of healing
|-
| 0x16 || 22 || Chest || Trapped, -1 body point
|-
| 0x17 || 23 || Chest || Trapped, you disarm it
|-
| 0x18 || 24 || Table || Agrain's keys (100 coins)
|-
| 0x19 || 25 || 2 Chests || 200 coins x2
|-
| 0x1A || 26 || Chest || 350 coins
|-
| 0x1B || 27 || Chest || 250 coins
|-
| 0x1C || 28 || Throne || 500 coins
|-
| 0x1D || 29 || Chest || Potion of healing
|-
| 0x1E || 30 || Generic || Mine entrance + 5000 coins, cannot attack (Coins are fake only in the "Castle of Mystery" mission)
|}

For example, in QUEST17.BIN, the (hexadecimal) event contents are the following. Again, 00 bytes have been replaced by "--" to more clearly show the data.
<pre>
Room ID: 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A
Treasure -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- -- -- -- -- --
Traps -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 17 -- -- -- -- -- -- -- -- --
</pre>

== Population ==

The population block, starting at 0x462, takes up the rest of the file. It has a header that specifies for each section where the data can be found. All pointers in this section are relative to the start of the population block.

{|class="wikitable"
!Offset!!Data type!!Block Name!!Description & Notes
|-
|0x00||[[UINT16LE]]||TextBlockStart||Relative pointer to where the [[#Quest Text Block|Quest Text Block]] starts. This is normally put at the end of the file.
|-
|0x02||[[UINT16LE]]||TextBlockSize||Size of the text block.
|-
|0x04||[[UINT16LE]]||MonstersBlockStart||Relative pointer to the [[#Monsters Block|Monsters Block]]. Each block is 10 bytes. This is normally put directly behind this header, at offset 0C.
|-
|0x06||[[UINT16LE]]||MonstersBlockSize||Size of the Monsters block. Divide by 10 to get the amount of monsters.
|-
|0x08||[[UINT16LE]]||ObjectsBlockStart||Relative pointer to the [[#Objects Block|Objects Block]].
|-
|0x0A||[[UINT16LE]]||NrOfObjects||Number of objects in the Objects Block.
|}

After this come the sections, normally in the following order:

* Monsters Block
* Objects block
* Quest Text Block
* A padding 0x00 byte. This is sometimes two bytes. Might be needed to serve as end of the last text item.

=== Monsters Block ===

Typically starts at offset 0x46E. Each monster block takes 10 bytes. The length of the full block is specified in the header in <tt>MonstersBlockSize</tt>. Divide it by 10 to know the amount of monsters.

The maximum amount of monsters the game can handle is 32, so that's most likely also the maximum amount that can be stored in this block.

==== Monster Layout ====

The monster layout is the following:

{|class="wikitable" style="width: 100%"
!Offset!!Data type!!Description & Notes
|-
| style="width:70px" | 00
| style="width:70px" | [[UINT8]]
|| Seems to be a set of bit flags. It apparently needs to be 0x81 to have a properly functioning monster. If it is set to 0x00, the monster does not appear on the map at all. If it is set to just 0x80 or just 0x01, the monster can't be attacked except by spells. Only the Death Mist on Quest 17 uses value 0x01, but its special scripted code means it can not be interacted with at all.
|-
| 01 || [[UINT8]] || X starting position, from 0x00 to 0x19. Changes during the game as the monster moves.
|-
| 02 || [[UINT8]] || Y starting position, from 0x00 to 0x12. Changes during the game as the monster moves.
|-
| 03 || [[UINT8]] || ''Placeholder'' for Monsters's current room. See [[HeroQuest Quest Format#Rooms Layout|Rooms Layout]]
|-
| 04 || [[UINT16LE]] || ''Placeholder'' for Memory location of Monster's position on the [[HeroQuest Quest Format#Walls Layout|Walls Layout]] in memory at [0B6B:546F]
|-
| 06 || [[UINT8]] || Monster condition bits, including spell effects. 0x00 = dead, 0x01 = alive, 0x02 = tempest, 0x04 = sleep. The Death Mist on Quest 17 has the highest bit (0x80) enabled.
|-
| 07 || [[UINT8]] || Higher 4 bits are for the Body points, and the lower 4 are for the Mind points, i.e. 0x13 = 1 BP, 3 MP. Changing BP doesn't affect the game though.
|-
| 08 || [[UINT8]] || Shown monster type; see monster types table below. This determines the graphics and name of the monster.
|-
| 09 || [[UINT8]] || Monster type stats; see monster types table below. This determines the Attack and Defense of the monster. This usually uses the same type as what it is shown as, but it can be changed to make the monster weaker or stronger than a monster of that type normally is. This also changes the Death Event of the monster.
|}

The first monster in the list is used as the "wandering monster" that might show up when you search a room. Its first byte is usually put to 0, so it won't show up on the map and acts purely as wandering monster template. However, it is perfectly possible to have a monster both serve as wandering monster ''and'' appear as physical entity on the map.

==== Monster Types ====

The list of monster types can be divided into four ranges:

* The 00-0C range are the normal monsters.
* The 0D-13 range are special monsters only referenced in QUEST11.BIN. These are not actually used as monsters in Quest 11, but their stats are applied to the normal monsters by putting them in the "monster type stats" field. The stats themselves are actually unchanged, but this also makes them use the special death event of these new types, triggering the quest's gold reward. The Witch Lord from this range is not used.
* The 14-1B range contains the new monsters from the expansion.
* The last monster (1B), is a dummy entry containing a copy of the Orc, which is never used.

As indicated in the previous section, the Body and Mind points can be individually changed in the monsters' profiles in each QUESTXX.BIN file. The Movement, Attack, Defense and Death special event offset listed here are hardcoded in [[HeroQuest EXE File|QUEST.EXE]].

{|class="wikitable" style="width: 100%"
! Hex ID !! Dec ID !! Monster !! Graphic !! Body !! Mind !! Movement !! Attack !! Defense !! Death special event
|-
| 0x00 || 00 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 0000
|-
| 0x01 || 01 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 0000
|-
| 0x02 || 02 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 0000
|-
| 0x03 || 03 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 0000
|-
| 0x04 || 04 || Skeleton || Skeleton || 01 || 00 || 06 || 02 || 02 || 0000
|-
| 0x05 || 05 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 0000
|-
| 0x06 || 06 || Mummy || Mummy || 02 || 00 || 04 || 03 || 04 || 0000
|-
| 0x07 || 07 || Gargoyle || Gargoyle || 03 || 04 || 06 || 04 || 04 || 0000
|-
| 0x08 || 08 || Orc Warlord Ulag || Gargoyle || 02 || 03 || 0A || 04 || 05 || 200C
|-
| 0x09 || 09 || Orc Lord Grak || Orc || 03 || 03 || 08 || 04 || 04 || 0000
|-
| 0x0A || 10 || Balur the Fire Mage || Gargoyle || 03 || 07 || 08 || 02 || 05 || 2C0C
|-
| 0x0B || 11 || Stone Chaos Warrior || Gargoyle || 01 || 01 || 01 || 02 || 06 || 0000
|-
| 0x0C || 12 || The Witch Lord || Gargoyle || 04 || 06 || 0A || 05 || 06 || 0000
|-
| 0x0D || 13 || The Witch Lord || Gargoyle || 04 || 06 || 06 || 03 || 05 || 0000
|-
| 0x0E || 14 || Goblin || Goblin || 01 || 01 || 0A || 02 || 01 || 4A0C
|-
| 0x0F || 15 || Orc || Orc || 01 || 02 || 08 || 03 || 02 || 520C
|-
| 0x10 || 16 || Fimir || Fimir || 02 || 03 || 06 || 03 || 03 || 7B0C
|-
| 0x11 || 17 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 7B0C
|-
| 0x12 || 18 || Chaos Warrior || Chaos Warrior || 03 || 03 || 06 || 03 || 04 || 6F0C
|-
| 0x13 || 19 || Zombie || Zombie || 01 || 00 || 04 || 02 || 03 || 820C
|-
| 0x14 || 20 || Spirit Rider || Chaos warrior || 03 || 03 || 08 || 04 || 03 || 0000
|-
| 0x15 || 21 || Death Mist|| No graphics || || || 06 || 04 || 03 || 0000
|-
| 0x16 || 22 || Bellthor || Gargoyle || || || 06 || 04 || 06 || B82B
|-
| 0x17 || 23 || Skulmar || Gargoyle || || || 08 || 05 || 06 || 0000
|-
| 0x18 || 24 || Doomguard || Gargoyle || || || 06 || 04 || 06 || 0000
|-
| 0x19 || 25 || Witch Kessandria || Gargoyle || || || 06 || 04 || 06 || 0000
|-
| 0x1A || 26 || The Witch Lord || Gargoyle || || || 0A || 05 || 06 || DC2B
|-
| 0x1B || 27 || Orc || Orc || || || 08 || 03 || 02 || 0000
|}

=== Objects Block ===

Each object block takes 3 bytes. The length of the list of objects is specified in the header in <tt>NrOfObjects</tt>. The full block length is <tt>NrOfObjects * 3</tt>.

The object layout is the following:

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| 00 || [[UINT8]] || X position, from 0x00 to 0x19.
|-
| 01 || [[UINT8]] || Y position, from 0x00 to 0x12.
|-
| 02 || [[UINT8]] || Object type; see table below.
|}

Objects appear to be stored in order of their ID, though it is unknown if this is a requirement.

Multi-cell objects are made up of a defining indicator on the north-west origin-cell of the object, and filler objects on the other cells. These fillers are technically invisible objects, but they are important to ensure the entire object is considered impassable by the game. Each type has its own filler type; e.g. the tables in both directions both use the "table filler block". It is important to use the correct type, since this determines the name that shows up when holding your mouse over these cells on the minimap. For example, Quest 5 has an Alchemy Table with Fireplace filler blocks, and the minimap will indeed show the wrong name on all tiles except the top left one.

The Stairs that indicate the end (and sometimes start) of the Quest map are a special case in this; each of the cells is specifically defined.

Here is the full list of known object types. Types indicated with (*) are unused in the game levels, but might exist in-game for other reasons (e.g. sprung traps).

IDs outside the range indicated in this list usually spawn bugged monsters which won't move or attack, and can't be attacked with normal weapons because they are always deemed "out of range".

{|class="wikitable"
! Hex ID !! Dec ID !! Object
|-
| 30 || 48 || Rock
|-
| 31 || 49 || Rock(*)
|-
| 32 || 50 || Pit Trap - Hidden
|-
| 33 || 51 || Pit Trap - Opened(*)
|-
| 34 || 52 || Falling Rock Trap
|-
| 35 || 53 || ?
|-
| 36 || 54 || Spear Trap
|-
| 37 || 55 || Teleport
|-
| 38 || 56 || Stairs Block 1 (NW)
|-
| 39 || 57 || Stairs Block 2 (SW)
|-
| 3A || 58 || Stairs Block 3 (NE)
|-
| 3B || 59 || Stairs Block 4 (SE)
|-
| 3C || 60 || ?
|-
| 3D || 61 || ?
|-
| 3E || 62 || ?
|-
| 3F || 63 || ?
|-
| 40 || 64 || ?
|-
| 41 || 65 || ?
|-
| 42 || 66 || Table (Filler)
|-
| 43 || 67 || ?
|-
| 44 || 68 || Torture Table (Filler)
|-
| 45 || 69 || Tomb (Filler)
|-
| 46 || 70 || Alchemy Table (Filler)
|-
| 47 || 71 || Fireplace (Filler)
|-
| 48 || 72 || Closet (Filler)
|-
| 49 || 73 || Library (Filler)
|-
| 4A || 74 || Armour Rack (Filler)
|-
| 4B || 75 || Table 2x3 (Origin)
|-
| 4C || 76 || Table 3x2 (Origin)
|-
| 4D || 77 || Torture 3x2 (Origin)
|-
| 4E || 78 || Torture 2x3 (Origin)
|-
| 4F || 79 || Alchemy 2x3 (Origin)
|-
| 50 || 80 || Alchemy 3x2 (Origin)
|-
| 51 || 81 || ?
|-
| 52 || 82 || ?
|-
| 53 || 83 || Tomb 3x2 (Origin)
|-
| 54 || 84 || Closet 1x3 (Origin)
|-
| 55 || 85 || Armour Rack 3x1 (Origin)
|-
| 56 || 86 || Library 1x3 (Origin)
|-
| 57 || 87 || Fireplace 3x1 (Origin)
|-
| 58 || 88 || Library 3x1 (Origin)
|-
| 59 || 89 || Fireplace 1x3 (Origin)
|-
| 5A || 90 || Closet 3x1 (Origin)
|-
| 5B || 91 || Armour Rack 1x3 (Origin)
|-
| 5C || 92 || Chest (South)
|-
| 5D || 93 || Chest (East)
|-
| 5E || 94 || Throne (South)
|-
| 5F || 95 || Throne (East)
|}

=== Quest Text Block ===

This block contains the briefing at the start of the Quest. Its X and Y positions are offsets on the scroll on which the text is shown.

The full block consists of any number of text chunks, without any bytes in between the chunks. The 00 byte behind the last text chunk seems to serve as end point. If this 00 byte is not present, the game will ignore the length set in the header and will keep on reading and interpreting text entries. The 00 byte is not included in the text block length in the header.

Each text chunk contained in this block is preceded by a small header consisting of an entry separator value and the X and Y coordinates.

{|class="wikitable"
!Offset!!Data type!!Description & Notes
|-
| [[UINT8]] || Separator || Always 0x11. Is probably used to detect where the previous entry ends.
|-
| [[UINT8]] || Y position || Y position in the scroll's matrix offsets; effectively the line number.
|-
| [[UINT8]] || X position || X position in the scroll's matrix offsets, to nicely center the text.
|}

This header is immediately followed by the text.

== List of Quests ==

The following list contains PC game specific information and differences with the boardgame version of the same quest. Quest 15-24 are from the "Return of the Witch Lord" expansion. All PC maps have a different layout than the boardgame. "Fixed" column refers to the current modding project carried out by [[User:theruler|theruler]] on [https://www.oldgamesitalia.net/forum/index.php?showtopic=27582 OldGamesItalia.net] (italian).

{|class="wikitable"
! Dec ID !! Hex ID !! Quest name !! Quest specific rules differences with the boardgame !! Fixed
|-
| 01 || 00 || The Maze || ||
|-
| 02 || 01 || The Rescue of Sir Ragnar || ||
|-
| 03 || 02 || Lair of the Orc Warlord || ||
|-
| 04 || 03 || Prince Magnus' Gold || ||
|-
| 05 || 04 || Melar's Maze || <s>The Stone Gargoyle trap is not implemented</s> || Yes
|-
| 06 || 05 || Legacy of the Orc Warlord || <s>The equipment is correctly removed from the heroes, but they still keep the benefits.</s> || Yes
|-
| 07 || 06 || The Lost Wizard || ||
|-
| 08 || 07 || The Fire Mage || <s>Balurs is a normal monster, doesn't have the ability to use fire magic or escape spell.</s> || Yes
|-
| 09 || 08 || Race Against Time || ||
|-
| 10 || 09 || Castle of Mystery || <s>Wandering monster instead of Ollar's text</s> / <s>inability to drop the mine gold</s> / <s>Only one hero can take the gold</s> / <s>monsters cannot step in front of doors</s> || Yes
|-
| 11 || 0A || Bastion of Chaos || ||
|-
| 12 || 0B || Barak Tor - Barrow of the Witch Lord || <s>The WL has standard movement instead of 1</s> / <s>the fake doors are not present.</s>|| Yes
|-
| 13 || 0C || Quest for the Spirit Blade || <s>The special fallen rock that blocks the backtrack of the heroes is not present.</s> || Yes
|-
| 14 || 0D || Return to Barak Tor || <s>The WL can be killed by magic rather than being totally immune</s> / <s>epilogue text is missing</s> || Yes
|-
| 15 || 0E || The Gate of Doom || <s>The doors do not automatically open upon entering the first room / there are no fake doors.</s> || Yes
|-
| 16 || 0F || The Cold Halls || Spirit raiders are weaker / and scattered on the map instead of inside their tombs || No
|-
| 17 || 10 || The Silent Passages || The Myst cannot be killed / and have a fixed movement of 6 tiles || No
|-
| 18 || 11 || The Halls of Vision || <s>Keys of Agrain are found the very room before the stairs, the mummies are normal monsters and the doors do not disappear.</s> || Yes
|-
| 19 || 12 || The Gate of Bellthor || The Bellthor is a normal monster, start attacking and doesn't wait till the last hero has entered the room, doesn't explode upon death and doesn't drain mind points. The door doesn't disappear || No
|-
| 20 || 13 || Halls of the Dead || <s>All 4 heroes are not captured and start together with all the equipment</s> / <s>WL is not present and doesn't curse the heroes when entering the central room.</s> || Yes
|-
| 21 || 14 || The Forgotten Legion || The legion is not frozen in the central room, but scattered on the map as normal monsters || No
|-
| 22 || 15 || The Forbidden Caverns || <s>There are no random monsters on the Xs</s> / no already opened doors at the beginning || Partial
|-
| 23 || 15 || The Last Gate || Kessandria is a normal monster and does not escape if attacked / doesn't cast spells / <s>is not immune to magic</s> || Partial
|-
| 24 || 17 || The Court of the Witch Lord || <s>Doomguards are normal Chaos warriors</s> / <s>Heroes start in the WL's room instead at the stairs</s> / <s>the WL is affected by all magic not only fire</s> / <s>WL doesn't summon monsters</s> / <s>Stone orcs are normal orcs.</s> || Yes
|}

HeroQuest EXE File

2025-11-16T08:38:44Z

Theruler: /* Various */

The original exe is compressed with EXEPACKER, you must decompress with UNP to manipulate it.

{{Executable Infobox
| Interpreted = N
| Platform = MS-DOS
| Code = 16-bit x86
| Games = {{Game|HeroQuest}}
Memory information:''' Code segment = 01EF Data segment = 0B6B Stack segment = 25F2'''
}}

= [CODE SEGMENT] Main Routines =
These are the main routines of the game, disassembled with DOSBOX debugger and annotated.

== in-game main loop ==
01EF:0413 E8E65F call 000063FC ($+5fe6) <---- ???
01EF:0416 E8FA5F call 00006413 ($+5ffa) <---- Checks left mouse button and everityng under it
01EF:0419 C606CC40FF mov byte [40CC],FF ds:[40CC]=DFFF
01EF:041E F606923920 test byte [3992],20 ds:[3992]=9200 <---- Checks if right mouse button has been pressed
01EF:0423 7403 je 00000428 ($+3) (no jmp)
01EF:0425 E82E03 call 00000756 ($+32e) <---- ends the turn if right mouse button pressed
01EF:0428 E85963 call 00006784 ($+6359) <---- ???
01EF:042B E8A202 call 000006D0 ($+2a2) <---- ???
01EF:042E E8E564 call 00006916 ($+64e5) <---- draws in the correct order heroes and forniture
01EF:0431 E84553 call 00005779 ($+5345) <---- same as above?
01EF:0434 E8DD53 call 00005814 ($+53dd) <---- ???
01EF:043A E87B53 call 000057B8 ($+537b) <---- draws heroes, monsters, forniture and doors (not the walls)
01EF:043D E8B454 call 000058F4 ($+54b4) <---- Checks if orthogonal tiles are walkable and updates the directional arrows
01EF:0440 E8A156 call 00005AE4 ($+56a1) <---- Checks if monsters are present in the room and updates search icons
01EF:0443 E81E60 call 00006464 ($+601e) <---- activates attack, magic, treasure, traps icons
01EF:0446 E8CF60 call 00006518 ($+60cf) <---- draws yellow figures on top left
01EF:0449 E8C859 call 00005E14 ($+59c8) <---- draws glove mouse pointer
01EF:044C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0451 7503 jne 00000456 ($+3) (down)
01EF:0453 E88E5C call 000060E4 ($+5c8e) <---- ???
01EF:0456 E87E59 call 00005DD7 ($+597e) <---- Clean the previous mouse sprite
01EF:0459 E85954 call 000058B5 ($+5459) <---- Clean the previous hero sprite
01EF:045C E82100 call 00000480 ($+21) <---- Quest event checks
01EF:045F E8EC13 call 0000184E ($+13ec) <---- Checks if the hero stands on a stair tile
01EF:0462 803E973F00 cmp byte [3F97],00 ds:[3F97]=0000
01EF:0467 7403 je 0000046C ($+3) (no jmp)
01EF:0469 E8BA00 call 00000526 ($+ba) <---- End turn wrap up (resets registers and variables)
01EF:046C 803E9A3F00 cmp byte [3F9A],00 ds:[3F9A]=0000
01EF:0471 7401 je 00000474 ($+1) (no jmp)
01EF:0473 C3 ret
01EF:0474 803E923940 cmp byte [3992],40 ds:[3992]=9200
01EF:0479 7503 jne 0000047E ($+3) (down)
01EF:047B E94FFE jmp 000002CD ($-1b1) (up)
01EF:047E EB93 jmp short 00000413 ($-6d) (up) <--- goes back on top

== Shooting routine ==
Shooting routine (magic and throwing weapons) is utterly broken in this game. 
The code checks the map tile the projectile is above and determine if the line of sight is blocked or free. 
The way the map is coded resulted in a convoluted code that fails to check LOS. 
'''You can shoot past walls''' and always hit the target if the hero stands in contact with one wall and the target is the adjacent room exactly above or exactly to the right. 
You can also hit the target standing in the perfect diagonal like bishop's movement, and this could happen even if there are no active rooms (solid rock, but marked with 00 like rooms' inner tiles) in between. 
'''LOS is blocked''' by parallel unrevealed secret doors and opened doors. 
 

Weapon check:
01EF:0AB2 32C0 xor al,al
01EF:0AB4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- di+11 is equipped weapon. checks if it is crossbow?
01EF:0AB8 7501 jne 00000ABB ($+1) (no jmp)
01EF:0ABA C3 ret
01EF:0ABB B0FD mov al,FD <-- not crossbow
01EF:0ABD C3 ret
01EF:0ABE 807D1101 cmp byte [di+11],01 ds:[B1A7]=0000 <-- starts here
01EF:0ABF 7D11 jge 00000AD2 ($+11) (down) <-- jump if greater or equal
01EF:0AC1 0174EE add [si-12],si ds:[4DBA]=260D
01EF:0AC4 807D1102 cmp byte [di+11],02 ds:[46A8]=0010 <-- F64511/807D11 are the test/cmp of the equipped weapon
01EF:0AC8 74E8 je 00000AB2 ($-18) (up)
01EF:0ACA 807D1140 cmp byte [di+11],40 ds:[46A8]=0010
01EF:0ACE 74E2 je 00000AB2 ($-1e) (up)
01EF:0AD0 B0FC mov al,FC
01EF:0AD2 EBE0 jmp short 00000AB4 ($-20) (up)
01EF:0AD4 F6451110 test byte [di+11],10 ds:[46A8]=0010 <-- crossbow
01EF:0AD8 750F jne 00000AE9 ($+f) (no jmp)
01EF:0ADA F6451120 test byte [di+11],20 ds:[46A8]=0010 <-- throwing axe
01EF:0ADE 7509 jne 00000AE9 ($+9) (no jmp)
01EF:0AE0 F6451140 test byte [di+11],40 ds:[46A8]=0010 <-- spear
01EF:0AE4 7503 jne 00000AE9 ($+3) (no jmp)
01EF:0AE6 B0FC mov al,FC
01EF:0AE8 C3 ret

SHOOTING ROUTINE STARTS HERE:
01EF:0AE9 C606B73F01 mov byte [3FB7],01 ds:[3FB7]=0301
01EF:0AEE E82B00 call 00000B1C ($+2b)
01EF:0AF1 32C0 xor al,al
01EF:0AF3 803EA83F01 cmp byte [3FA8],01 ds:[3FA8]=0001 <-- check if LOS is blocked (1)
01EF:0AF8 7401 je 00000AFB ($+1) (down)
01EF:0AFA C3 ret
01EF:0AFB B0FE mov al,FE
01EF:0AFD C606B73F00 mov byte [3FB7],00 ds:[3FB7]=0300
01EF:0B02 C3 ret

01EF:0B1C E81F06 call 0000113E ($+61f)
01EF:0B1F A0A83F mov al,[3FA8] ds:[3FA8]=0001
01EF:0B22 3401 xor al,01
01EF:0B24 A2B23F mov [3FB2],al ds:[3FB2]=0000
01EF:0B27 C3 ret

Set global variables (shooter and target position/distance):
01EF:113E 8B36D43F mov si,[3FD4] ds:[3FD4]=4DC2
01EF:1142 8A7C01 mov bh,[si+01] ds:[4DC3]=0F0A <-- Target X
01EF:1145 8A5C02 mov bl,[si+02] ds:[4DC4]=270F <-- Target Y
01EF:1148 8BCB mov cx,bx
01EF:114A 8B3E3746 mov di,[4637] ds:[4637]=4697
01EF:114E 8A7501 mov dh,[di+01] ds:[4698]=120A <-- Hero X
01EF:1151 8A5502 mov dl,[di+02] ds:[4699]=1212 <-- Hero Y
01EF:1154 8836A53F mov [3FA5],dh ds:[3FA5]=0C0C <-- Hero X saved at 3FA5
01EF:1158 8816A63F mov [3FA6],dl ds:[3FA6]=020C <-- Hero Y saved at 3FA6
01EF:115C C6069F3F00 mov byte [3F9F],00 ds:[3F9F]=0000 <-- reset projectile temp distance (area used for math)
01EF:1161 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0002 <-- reset LOS 0=free, 1=blocked
01EF:1166 B7FF mov bh,FF
01EF:1168 8AC6 mov al,dh
01EF:116A 2AC5 sub al,ch
01EF:116C 7504 jne 00001172 ($+4) (down)
01EF:116E B700 mov bh,00 <-- target is on the RIGHT (>)
01EF:1170 EB06 jmp short 00001178 ($+6) (down)
01EF:1172 7304 jnc 00001178 ($+4) (down)
01EF:1174 F6D8 neg al
01EF:1176 B701 mov bh,01 <-- target is on the LEFT (<)
01EF:1178 A2A13F mov [3FA1],al ds:[3FA1]=0301 <-- horizontal distance shooter-target saved at 3FA1
01EF:117B 8AE8 mov ch,al
01EF:117D B3FF mov bl,FF
01EF:117F 8AC2 mov al,dl
01EF:1181 2AC1 sub al,cl
01EF:1183 7504 jne 00001189 ($+4) (down)
01EF:1185 B300 mov bl,00 <-- target is UNDER (v)
01EF:1187 EB06 jmp short 0000118F ($+6) (down)
01EF:1189 7304 jnc 0000118F ($+4) (down)
01EF:118B F6D8 neg al
01EF:118D B301 mov bl,01 <-- target is ABOVE (^)
01EF:118F A2A23F mov [3FA2],al ds:[3FA2]=0003 <-- vertical distance shooter-target saved at 3FA2
01EF:1192 3AC5 cmp al,ch
01EF:1194 7240 jc 000011D6 ($+40) (no jmp)

bx (bh+bl) registry status based on target/shooter position:
{|class="wikitable"
| 0101 || 0001 || FF01
|-
| 0100 || TRGT || FF00
|-
| 01FF || 00FF || FFFF
|-
|-
|}

VERTICAL shooting routine:
01EF:1196 8ACD mov cl,ch
01EF:1198 8AE8 mov ch,al
01EF:119A 8AD0 mov dl,al
01EF:119C 000E9F3F add [3F9F],cl ds:[3F9F]=0000 <-- update projectile travelled distance
01EF:11A0 38169F3F cmp [3F9F],dl ds:[3F9F]=0000
01EF:11A4 7208 jc 000011AE ($+8) (no jmp)
01EF:11A6 28169F3F sub [3F9F],dl ds:[3F9F]=0000
01EF:11AA 003EA53F add [3FA5],bh ds:[3FA5]=0F0D <-- Temp Projectile X (d 0:F655)
01EF:11AE 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y (d 0:F656)
01EF:11B2 C706E9370000 mov word [37E9],0000 ds:[37E9]=D238 <-- set Vertical flag
01EF:11B8 882EEB37 mov [37EB],ch ds:[37EB]=F1E0 <-- distance between projectile and target
01EF:11BC 80FD01 cmp ch,01
01EF:11BF 7505 jne 000011C6 ($+5) (down)
01EF:11C1 80FBFF cmp bl,FF
01EF:11C4 7403 je 000011C9 ($+3) (no jmp)
01EF:11C6 E84B00 call 00001214 ($+4b)
01EF:11C9 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0000 <-- check if LOS is still free (0), if 1 exits
01EF:11CE 7401 je 000011D1 ($+1) (no jmp)
01EF:11D0 C3 ret
01EF:11D1 FECD dec ch
01EF:11D3 75C7 jne 0000119C ($-39) (up)
01EF:11D5 C3 ret

HORIZONTAL shooting routine:
01EF:11D6 8AD0 mov dl,al
01EF:11D8 8ACD mov cl,ch <-- it moves ch in cl
01EF:11DA 32ED xor ch,ch <-- and puts to 00 ch because uses loop (thus cx) instead of dec ch of vertical routine
01EF:11DC 00169F3F add [3F9F],dl ds:[3F9F]=0001
01EF:11E0 380E9F3F cmp [3F9F],cl ds:[3F9F]=0001
01EF:11E4 7208 jc 000011EE ($+8) (no jmp)
01EF:11E6 280E9F3F sub [3F9F],cl ds:[3F9F]=0001
01EF:11EA 001EA63F add [3FA6],bl ds:[3FA6]=020F <-- Temp Projectile Y
01EF:11EE 003EA53F add [3FA5],bh ds:[3FA5]=0F03 <-- Temp Projectile X
01EF:11F2 C706E9370100 mov word [37E9],0001 ds:[37E9]=0001 <-- set Horizontal flag
01EF:11F8 880EEB37 mov [37EB],cl ds:[37EB]=AA04 <-- distance between projectile and target
01EF:11FC 80F901 cmp cl,01
01EF:11FF 7505 jne 00001206 ($+5) (down)
01EF:1201 80FFFF cmp bh,FF
01EF:1204 7403 je 00001209 ($+3) (no jmp)
01EF:1206 E80B00 call 00001214 ($+b)
01EF:1209 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0001 <-- check if LOS is still free (0), if 1 exits
01EF:120E 7401 je 00001211 ($+1) (no jmp)
01EF:1210 C3 ret
01EF:1211 E2C9 loop 000011DC ($-37)
01EF:1213 C3 ret

Collision check routine on current tile IN WALL/DOORS map (ds:566F):
01EF:1214 53 push bx
01EF:1215 52 push dx
01EF:1216 8A36A63F mov dh,[3FA6] ds:[3FA6]=0839
01EF:121A 8A16A53F mov dl,[3FA5] ds:[3FA5]=3936
01EF:121E E85D4E call 0000607E ($+4e5d)
01EF:1221 80BF6F5600 cmp byte [bx+566F],00 ds:[576C]=8128 <-- Check if tile is 00, if true jumps to the Object map check
01EF:1226 742A je 00001252 ($+2a) (no jmp) at 0B6B:566F is where WALLS/DOORS map is stored
01EF:1228 8A876F56 mov al,[bx+566F] ds:[576C]=8128 <-- mov into al the current TILE (28=is north secret door)
01EF:122C 833EE93701 cmp word [37E9],0001 ds:[37E9]=0001 <-- 1=H, 0=V check for opened door subroutines
01EF:1231 7411 je 00001244 ($+11) (no jmp)

Vertical shoot subroutine that checks for Horizontal walls/doors:
01EF:1233 24AC and al,AC <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1235 0AC0 or al,al AC= 10101100
01EF:1237 7419 je 00001252 ($+19) (no jmp)
01EF:1239 A820 test al,20 <-- if door is Horizontal
01EF:123B 7442 je 0000127F ($+42) (down)
01EF:123D A804 test al,04 <-- if door is opened
01EF:123F 743E je 0000127F ($+3e) (down)
01EF:1241 EB0F jmp short 00001252 ($+f) (down)
01EF:1243 90 nop

Horizontal shoot subroutine that checks for Vertical walls/doors:
01EF:1244 245C and al,5C <-- binary AND check if Horizontal walls/doors are present (block LOS)
01EF:1246 0AC0 or al,al 5C= 01011100
01EF:1248 7408 je 00001252 ($+8) (down)
01EF:124A A810 test al,10 <-- if door is Vertical
01EF:124C 7431 je 0000127F ($+31) (down)
01EF:124E A804 test al,04 <-- if door is opened
01EF:1250 742D je 0000127F ($+2d) (down)

Collision check routine on current tile IN OBJECTS map (ds:586F):
01EF:1252 803EEB3701 cmp byte [37EB],01 ds:[37EB]=6E03 <-- checks if the projectile is about to hit the target
01EF:1257 742B je 00001284 ($+2b) (down)
01EF:1259 80BF6F5800 cmp byte [bx+586F],00 ds:[1576F]=3637 <-- checks if the tile is passable (00)
01EF:125E 740E je 0000126E ($+e) (down)
01EF:1260 8A876F58 mov al,[bx+586F] ds:[1576F]=3637 <-- ds:586F is where OBJECTS map is stored
01EF:1264 BB4649 mov bx,4946 <-- ds:4946 check
01EF:1267 D7 xlat
01EF:1268 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:126B EB17 jmp short 00001284 ($+17) (down)
01EF:126D 90 nop
01EF:126E 8A36A63F mov dh,[3FA6] ds:[3FA6]=004D
01EF:1272 8A16A53F mov dl,[3FA5] ds:[3FA5]=4D4D
01EF:1276 E80E00 call 00001287 ($+e)
01EF:1279 A2A83F mov [3FA8],al ds:[3FA8]=0000
01EF:127C EB06 jmp short 00001284 ($+6) (down)
01EF:127E 90 nop
01EF:127F C606A83F01 mov byte [3FA8],01 ds:[3FA8]=BA6B <-- sets LOS as blocked (1) and exits
01EF:1284 5A pop dx
01EF:1285 5B pop bx
01EF:1286 C3 ret

Updates with random numbers the first three bytes of heroes' equipment every movement (presumably used as seed for RNG):
01EF:1287 51 push cx
01EF:1288 57 push di
01EF:1289 B90500 mov cx,0005
01EF:128C BF6346 mov di,4663 <-- first byte of Barbarian equipment in memory
01EF:128F 33C0 xor ax,ax
01EF:1291 803D00 cmp byte [di],00 ds:[6CAA]=0000
01EF:1294 740C je 000012A2 ($+c) (down)
01EF:1296 385501 cmp [di+01],dl ds:[6CAB]=0000
01EF:1299 7507 jne 000012A2 ($+7) (no jmp)
01EF:129B 387502 cmp [di+02],dh ds:[6CAC]=0000
01EF:129E 7502 jne 000012A2 ($+2) (no jmp)
01EF:12A0 B001 mov al,01
01EF:12A2 83C71A add di,001A <-- jumps to the following hero's equipment
01EF:12A5 E2EA loop 00001291 ($-16)
01EF:12A7 5F pop di
01EF:12A8 59 pop cx
01EF:12A9 C3 ret

TBD
01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5 <-- ds:5AC5 check
01EF:6088 8B07 mov ax,[bx] ds:[FF00]=3737
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

=== New shooting routine ===
Finally I came up with a proper line of sight mechanism that cover roughly 99% of the "impossible shots". There will always be a particular combiantion of monster-door-hero position that can lead to an "improbable shot", but that's it.

Direction choice routine

1ef:1198: 88 D0 mov al, dl
1ef:119a: 88 CC mov ah, cl
1ef:119c: 05 01 01 add ax, 0x101
1ef:119f: D0 E8 shr al, 1
1ef:11a1: D0 EC shr ah, 1
1ef:11a3: A3 AA 3F mov word ptr [0x3faa], ax <-- save half distance of X and Y

1ef:11a6: 30 C0 xor al, al <-- direction choice routine
1ef:11a8: 3A 0E AB 3F cmp cl, byte ptr [0x3fab] <-- check if X distance reached it's half
1ef:11ac: 74 13 je 0x11c1 <-- if YES reset X half value and change direction
1ef:11ae: 3A 16 AA 3F cmp dl, byte ptr [0x3faa] <-- check if Y distance reached it's half
1ef:11b2: 74 06 je 0x11ba <-- if YES reset Y half value and change direction
1ef:11b4: 38 CA cmp dl, cl
1ef:11b6: 7C 2B jl 0x11e3
1ef:11b8: EB 0C jmp 0x11c6
1ef:11ba: C6 06 AA 3F 00 mov byte ptr [0x3faa], 0
1ef:11bf: EB 22 jmp 0x11e3
1ef:11c1: C6 06 AB 3F 00 mov byte ptr [0x3fab], 0

Vertical
1ef:11c6: 84 D2 test dl, dl <-- vertical routine
1ef:11c8: 74 19 je 0x11e3 <-- if Y distance is zero go to horizontal routine
1ef:11ca: 00 1E A6 3F add byte ptr [0x3fa6], bl
1ef:11ce: B8 00 00 mov ax, 0
1ef:11d1: 80 FB FF cmp bl, 0xff
1ef:11d4: 75 02 jne 0x11d8
1ef:11d6: B4 1A mov ah, 0x1a
1ef:11d8: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11db: FE CA dec dl
1ef:11dd: 88 16 EB 37 mov byte ptr [0x37eb], dl
1ef:11e1: EB 1B jmp 0x11fe

Horizontal
1ef:11e3: 84 C9 test cl, cl <-- horizontal routine
1ef:11e5: 74 DF je 0x11c6 <-- if X distance is zero go to vertical routine
1ef:11e7: 00 3E A5 3F add byte ptr [0x3fa5], bh
1ef:11eb: B8 01 00 mov ax, 1
1ef:11ee: 80 FF FF cmp bh, 0xff
1ef:11f1: 75 02 jne 0x11f5
1ef:11f3: B4 01 mov ah, 1
1ef:11f5: A3 E9 37 mov word ptr [0x37e9], ax
1ef:11f8: FE C9 dec cl
1ef:11fa: 88 0E EB 37 mov byte ptr [0x37eb], cl

1ef:11fe: E8 13 00 call 0x1214 <-- calls wall/object collision check routine
1ef:1201: 80 3E A8 3F 00 cmp byte ptr [0x3fa8], 0 <-- collision flag
1ef:1206: 74 01 je 0x1209
1ef:1208: C3 ret <-- else object or wall was HIT
1ef:1209: 88 C8 mov al, cl
1ef:120b: 00 D0 add al, dl <-- if X+Y distance is not zero
1ef:120d: 75 97 jne 0x11a6 <-- back to direction choice routine
1ef:120f: C3 ret <-- else target was HIT
1ef:1210: 90 nop
1ef:1211: 90 nop
1ef:1212: 90 nop
1ef:1213: 90 nop

Wall/object collision check routine

1ef:1214: 53 push bx
1ef:1215: 52 push dx
1ef:1216: 8A 36 A6 3F mov dh, byte ptr [0x3fa6]
1ef:121a: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:121e: E8 5D 4E call 0x607e
1ef:1221: A0 EA 37 mov al, byte ptr [0x37ea]
1ef:1224: 30 E4 xor ah, ah
1ef:1226: 01 C3 add bx, ax
1ef:1228: 8A 87 6F 56 mov al, byte ptr [bx + 0x566f] <-- checks if the tile is free (00) or occupied (30=rock)
1ef:122c: 3C 00 cmp al, 0
1ef:122e: 74 21 je 0x1251 <-- if occupied jump to specific object check
1ef:1230: 80 3E E9 37 01 cmp byte ptr [0x37e9], 1
1ef:1235: 74 0C je 0x1243
1ef:1237: A8 20 test al, 0x20 <-- Horizontal Door check
1ef:1239: 75 12 jne 0x124d
1ef:123b: A8 80 test al, 0x80 <-- Horizontal Wall check
1ef:123d: 74 12 je 0x1251
1ef:123f: EB 3E jmp 0x127f
1ef:1241: 90 nop
1ef:1242: 90 nop

1ef:1243: A8 10 test al, 0x10 <-- Vertical Door check
1ef:1245: 75 06 jne 0x124d
1ef:1247: A8 40 test al, 0x40 <-- Vertical Wall check
1ef:1249: 74 06 je 0x1251
1ef:124b: EB 32 jmp 0x127f

1ef:124d: A8 04 test al, 4 <-- opened door check
1ef:124f: 74 2E je 0x127f

1ef:1251: 8A 87 6F 58 mov al, byte ptr [bx + 0x586f] <-- specific object check
1ef:1255: BB 86 49 mov bx, 0x4986 <-- bitmask table where object properties are stored
1ef:1258: 51 push cx
1ef:1259: 88 C1 mov cl, al
1ef:125b: C0 E9 03 shr cl, 3
1ef:125e: 01 CB add bx, cx
1ef:1260: 59 pop cx
1ef:1261: 24 07 and al, 7
1ef:1263: 0F A3 07 bt word ptr [bx], ax <-- verify if the object is passable (ie. table) or not (ie. fireplace)
1ef:1266: 72 17 jb 0x127f
1ef:1268: 80 3E EB 37 00 cmp byte ptr [0x37eb], 0 <-- checks if the projectile hit the target
1ef:126d: 74 15 je 0x1284
1ef:126f: 8A 36 A6 3F mov dh, byte ptr [0x3fa6] <-- update projectile's X and Y
1ef:1273: 8A 16 A5 3F mov dl, byte ptr [0x3fa5]
1ef:1277: E8 0D 00 call 0x1287
1ef:127a: A2 A8 3F mov byte ptr [0x3fa8], al
1ef:127d: EB 05 jmp 0x1284
1ef:127f: C6 06 A8 3F 01 mov byte ptr [0x3fa8], 1
1ef:1284: 5A pop dx
1ef:1285: 5B pop bx
1ef:1286: C3 ret

== Monster attack routine ==
This first block defines the target priority: barbarian - dwarf - elf - wizard - ragnar 
It is possible to revers it forcing the monster to chose the weaker hero first reversing the logic by starting from ragnar profile and then jump backward subtracting 1A. 
See [[#Heroes' default profiles|Heroes' default profiles]] for reference.

01EF:2257 BE6346 mov si,4663 <-- starting profile offset 4663=barbarian
01EF:225A B90500 mov cx,0005 <-- loop repeats 5 times
01EF:225D 51 push cx
01EF:225E 8936D63F mov [3FD6],si ds:[3FD6]=46B1
01EF:2262 8A4419 mov al,[si+19] ds:[46CA]=0003 <-- jumps to hero's ID position
01EF:2265 A2BC3F mov [3FBC],al ds:[3FBC]=0003
01EF:2268 E85800 call 000022C3 ($+58)
01EF:226B 59 pop cx
01EF:226C 8B36D63F mov si,[3FD6] ds:[3FD6]=46B1
01EF:2270 83C61A add si,001A <-- jumps to the next profile
01EF:2273 803EA83F00 cmp byte [3FA8],00 ds:[3FA8]=0102
01EF:2278 7503 jne 0000227D ($+3) (down)
01EF:227A E95102 jmp 000024CE ($+251) (down)
01EF:227D 803EA83F03 cmp byte [3FA8],03 ds:[3FA8]=0102
01EF:2282 7503 jne 00002287 ($+3) (down)
01EF:2284 E94702 jmp 000024CE ($+247) (down)
01EF:2287 E2D4 loop 0000225D ($-2c)
01EF:2289 C3 ret

01EF:22C3 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000
01EF:22C8 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:22CB 7503 jne 000022D0 ($+3) (no jmp)
01EF:22CD E98101 jmp 00002451 ($+181) (down)
01EF:22D0 8A4403 mov al,[si+03] ds:[4666]=C726 <-- hero's room
01EF:22D3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room
01EF:22D6 7403 je 000022DB ($+3) (down)
01EF:22D8 E97601 jmp 00002451 ($+176) (down)
01EF:22DB F6441801 test byte [si+18],01 ds:[467B]=0000
01EF:22DF 7403 je 000022E4 ($+3) (down)
01EF:22E1 E96D01 jmp 00002451 ($+16d) (down)
01EF:22E4 8B5401 mov dx,[si+01] ds:[4664]=0D06
01EF:22E7 52 push dx
01EF:22E8 57 push di
01EF:22E9 E864F7 call 00001A50 ($-89c)
01EF:22EC 5F pop di
01EF:22ED 57 push di
01EF:22EE E84E02 call 0000253F ($+24e)
01EF:22F1 E8F03D call 000060E4 ($+3df0)
01EF:22F4 B9F401 mov cx,01F4
01EF:22F7 E88D23 call 00004687 ($+238d)
01EF:22FA 5F pop di
01EF:22FB 5A pop dx
01EF:22FC 8816A53F mov [3FA5],dl ds:[3FA5]=1106
01EF:2300 8836A63F mov [3FA6],dh ds:[3FA6]=0411
01EF:2304 BBA240 mov bx,40A2
01EF:2307 891ECA40 mov [40CA],bx ds:[40CA]=40A2
01EF:230B E8703D call 0000607E ($+3d70) <-- if jumped the monster doesn't attack when in contact

01EF:230E 81C36F54 add bx,546F
01EF:2312 8A07 mov al,[bx] ds:[3F28]=4040
01EF:2314 243F and al,3F
01EF:2316 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check. if removed the monster attack through walls and doors
01EF:2319 7403 je 0000231E ($+3) (down)
01EF:231B E93301 jmp 00002451 ($+133) (down)
01EF:231E B501 mov ch,01
01EF:2320 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:2323 2A4501 sub al,[di+01] ds:[4DB9]=0F06
01EF:2326 7504 jne 0000232C ($+4) (no jmp)
01EF:2328 B500 mov ch,00
01EF:232A EB08 jmp short 00002334 ($+8) (down)
01EF:232C 3C80 cmp al,80
01EF:232E 7204 jc 00002334 ($+4) (no jmp)
01EF:2330 F6D8 neg al
01EF:2332 B5FF mov ch,FF
01EF:2334 A2A13F mov [3FA1],al ds:[3FA1]=0100
01EF:2337 882EA33F mov [3FA3],ch ds:[3FA3]=0100
01EF:233B B501 mov ch,01
01EF:233D A0A63F mov al,[3FA6] ds:[3FA6]=0411
01EF:2340 2A4502 sub al,[di+02] ds:[4DBA]=260F
01EF:2343 7504 jne 00002349 ($+4) (no jmp)
01EF:2345 B500 mov ch,00
01EF:2347 EB08 jmp short 00002351 ($+8) (down)
01EF:2349 3C80 cmp al,80
01EF:234B 7204 jc 00002351 ($+4) (no jmp)
01EF:234D F6D8 neg al
01EF:234F B5FF mov ch,FF
01EF:2351 A2A23F mov [3FA2],al ds:[3FA2]=0001
01EF:2354 882EA43F mov [3FA4],ch ds:[3FA4]=0601
01EF:2358 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:235B 89169F3F mov [3F9F],dx ds:[3F9F]=1006
01EF:235F C606A93F00 mov byte [3FA9],00 ds:[3FA9]=0000
01EF:2364 8A5D09 mov bl,[di+09] ds:[4DC1]=8100
01EF:2367 02DB add bl,bl
01EF:2369 02DB add bl,bl
01EF:236B 025D09 add bl,[di+09] ds:[4DC1]=8100
01EF:236E 32FF xor bh,bh
01EF:2370 8A870648 mov al,[bx+4806] [illegal]
01EF:2374 A29C3F mov [3F9C],al ds:[3F9C]=0003
01EF:2377 8A0EA23F mov cl,[3FA2] ds:[3FA2]=0001
01EF:237B A0A13F mov al,[3FA1] ds:[3FA1]=0100
01EF:237E 3AC1 cmp al,cl
01EF:2380 7203 jc 00002385 ($+3) (no jmp)
01EF:2382 EB6A jmp short 000023EE ($+6a) (down)
01EF:2384 90 nop
01EF:2385 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2389 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:238D 7425 je 000023B4 ($+25) (down)
01EF:238F A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:2392 0AC0 or al,al
01EF:2394 741E je 000023B4 ($+1e) (down)
01EF:2396 02F0 add dh,al
01EF:2398 E8DD00 call 00002478 ($+dd)
01EF:239B 3CFF cmp al,FF
01EF:239D 7503 jne 000023A2 ($+3) (no jmp)
01EF:239F E9B500 jmp 00002457 ($+b5) (down)
01EF:23A2 0AC0 or al,al
01EF:23A4 750E jne 000023B4 ($+e) (no jmp)
01EF:23A6 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:23AA E8B000 call 0000245D ($+b0)
01EF:23AD 7303 jnc 000023B2 ($+3) (down)
01EF:23AF E99900 jmp 0000244B ($+99) (down)
01EF:23B2 EBD1 jmp short 00002385 ($-2f) (up)
01EF:23B4 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23B8 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23BB 3AC2 cmp al,dl
01EF:23BD 7503 jne 000023C2 ($+3) (no jmp)
01EF:23BF E98F00 jmp 00002451 ($+8f) (down)
01EF:23C2 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23C5 0AC0 or al,al
01EF:23C7 7503 jne 000023CC ($+3) (no jmp)
01EF:23C9 E98500 jmp 00002451 ($+85) (down)
01EF:23CC 02D0 add dl,al
01EF:23CE E8A700 call 00002478 ($+a7)
01EF:23D1 3CFF cmp al,FF
01EF:23D3 7503 jne 000023D8 ($+3) (no jmp)
01EF:23D5 E97F00 jmp 00002457 ($+7f) (down)
01EF:23D8 0AC0 or al,al
01EF:23DA 7403 je 000023DF ($+3) (down)
01EF:23DC EB73 jmp short 00002451 ($+73) (down)
01EF:23DE 90 nop
01EF:23DF A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23E2 32E4 xor ah,ah
01EF:23E4 E87600 call 0000245D ($+76)
01EF:23E7 7303 jnc 000023EC ($+3) (down)
01EF:23E9 EB60 jmp short 0000244B ($+60) (down)
01EF:23EB 90 nop
01EF:23EC EB97 jmp short 00002385 ($-69) (up)
01EF:23EE 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:23F2 A0A53F mov al,[3FA5] ds:[3FA5]=1106
01EF:23F5 3AC2 cmp al,dl
01EF:23F7 7426 je 0000241F ($+26) (down)
01EF:23F9 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:23FC 0AC0 or al,al
01EF:23FE 741F je 0000241F ($+1f) (down)
01EF:2400 02D0 add dl,al
01EF:2402 E87300 call 00002478 ($+73)
01EF:2405 3CFF cmp al,FF
01EF:2407 7503 jne 0000240C ($+3) (no jmp)
01EF:2409 EB4C jmp short 00002457 ($+4c) (down)
01EF:240B 90 nop
01EF:240C 0AC0 or al,al
01EF:240E 750F jne 0000241F ($+f) (no jmp)
01EF:2410 A0A33F mov al,[3FA3] ds:[3FA3]=0100
01EF:2413 32E4 xor ah,ah
01EF:2415 E84500 call 0000245D ($+45)
01EF:2418 7303 jnc 0000241D ($+3) (down)
01EF:241A EB2F jmp short 0000244B ($+2f) (down)
01EF:241C 90 nop
01EF:241D EBCF jmp short 000023EE ($-31) (up)
01EF:241F 8B169F3F mov dx,[3F9F] ds:[3F9F]=1006
01EF:2423 3836A63F cmp [3FA6],dh ds:[3FA6]=0411
01EF:2427 7428 je 00002451 ($+28) (down)
01EF:2429 A0A43F mov al,[3FA4] ds:[3FA4]=0601
01EF:242C 0AC0 or al,al
01EF:242E 7421 je 00002451 ($+21) (down)
01EF:2430 02F0 add dh,al
01EF:2432 E84300 call 00002478 ($+43)
01EF:2435 3CFF cmp al,FF
01EF:2437 741E je 00002457 ($+1e) (down)
01EF:2439 0AC0 or al,al
01EF:243B 7514 jne 00002451 ($+14) (no jmp)
01EF:243D 8A26A43F mov ah,[3FA4] ds:[3FA4]=0601
01EF:2441 E81900 call 0000245D ($+19)
01EF:2444 7303 jnc 00002449 ($+3) (down)
01EF:2446 EB03 jmp short 0000244B ($+3) (down)
01EF:2448 90 nop
01EF:2449 EBA3 jmp short 000023EE ($-5d) (up)
01EF:244B C606A83F01 mov byte [3FA8],01 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2450 C3 ret
01EF:2451 C606A83F02 mov byte [3FA8],02 ds:[3FA8]=0000 <-- hero is not reachable
01EF:2456 C3 ret
01EF:2457 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=0000 <-- hero is reachable
01EF:245C C3 ret

01EF:245D 89169F3F mov [3F9F],dx ds:[3F9F]=1006 <-- called only when the monster needs to move
01EF:2461 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:2465 8807 mov [bx],al ds:[3F28]=6148
01EF:2467 886701 mov [bx+01],ah ds:[3F29]=0061
01EF:246A 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:246F FE06A93F inc byte [3FA9] ds:[3FA9]=0000
01EF:2473 FE0E9C3F dec byte [3F9C] ds:[3F9C]=0003
01EF:2477 C3 ret

01EF:2478 A0BC3F mov al,[3FBC] ds:[3FBC]=0000
01EF:247B E80139 call 00005D7F ($+3901)
01EF:247E 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:2481 7408 je 0000248B ($+8) (down)
01EF:2483 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:2486 7503 jne 0000248B ($+3) (no jmp)
01EF:2488 B0FF mov al,FF
01EF:248A C3 ret

01EF:248B B500 mov ch,00
01EF:248D 382EBC3F cmp [3FBC],ch ds:[3FBC]=0000
01EF:2491 7412 je 000024A5 ($+12) (down)
01EF:2493 8AC5 mov al,ch
01EF:2495 E8E738 call 00005D7F ($+38e7)
01EF:2498 803C00 cmp byte [si],00 ds:[4663]=06FF
01EF:249B 7408 je 000024A5 ($+8) (down)
01EF:249D 3B5401 cmp dx,[si+01] ds:[4664]=0D06
01EF:24A0 7503 jne 000024A5 ($+3) (no jmp)
01EF:24A2 B001 mov al,01
01EF:24A4 C3 ret
01EF:24A5 FEC5 inc ch
01EF:24A7 80FD04 cmp ch,04
01EF:24AA 75E1 jne 0000248D ($-1f) (no jmp)
01EF:24AC 52 push dx
01EF:24AD E8CE3B call 0000607E ($+3bce)
01EF:24B0 5A pop dx
01EF:24B1 81C36F58 add bx,586F
01EF:24B5 803F00 cmp byte [bx],00 ds:[3F28]=6148
01EF:24B8 7403 je 000024BD ($+3) (down)
01EF:24BA B002 mov al,02
01EF:24BC C3 ret
01EF:24BD 8A8700FC mov al,[bx-0400] ds:[3B28]=E04B
01EF:24C1 243F and al,3F
01EF:24C3 3A4503 cmp al,[di+03] ds:[4DBB]=FB26 <-- monster's room check.
01EF:24C6 7503 jne 000024CB ($+3) (no jmp)
01EF:24C8 32C0 xor al,al
01EF:24CA C3 ret
01EF:24CB B003 mov al,03
01EF:24CD C3 ret

01EF:24CE 893ED43F mov [3FD4],di ds:[3FD4]=4DB8
01EF:24D2 8A0EA93F mov cl,[3FA9] ds:[3FA9]=0001
01EF:24D6 0AC9 or cl,cl
01EF:24D8 7455 je 0000252F ($+55) (down)
01EF:24DA 32ED xor ch,ch
01EF:24DC BBA240 mov bx,40A2
01EF:24DF 891ECA40 mov [40CA],bx ds:[40CA]=40A4
01EF:24E3 51 push cx
01EF:24E4 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:24E8 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24EB E8903B call 0000607E ($+3b90)
01EF:24EE 8A8F6F58 mov cl,[bx+586F] ds:[59FB]=0000
01EF:24F2 C6876F5800 mov byte [bx+586F],00 ds:[59FB]=0000
01EF:24F7 8B1ECA40 mov bx,[40CA] ds:[40CA]=40A2
01EF:24FB 8B5501 mov dx,[di+01] ds:[4DB9]=0F06
01EF:24FE 0217 add dl,[bx] ds:[018C]=1149
01EF:2500 027701 add dh,[bx+01] ds:[018D]=0611
01EF:2503 895501 mov [di+01],dx ds:[4DB9]=0F06
01EF:2506 8306CA4002 add word [40CA],0002 ds:[40CA]=40A2
01EF:250B E8703B call 0000607E ($+3b70)
01EF:250E 888F6F58 mov [bx+586F],cl ds:[AE50]=0A16
01EF:2512 81C36F54 add bx,546F
01EF:2516 895D04 mov [di+04],bx ds:[4DBC]=55E1
01EF:2519 E834F5 call 00001A50 ($-acc)
01EF:251C 8B3ED43F mov di,[3FD4] ds:[3FD4]=4DB8
01EF:2520 E81C00 call 0000253F ($+1c)
01EF:2523 E8BE3B call 000060E4 ($+3bbe)
01EF:2526 B9F401 mov cx,01F4
01EF:2529 E85B21 call 00004687 ($+215b) <-- 500.000 nop cycles, to slow down monster's animation
01EF:252C 59 pop cx
01EF:252D E2B4 loop 000024E3 ($-4c)
01EF:252F 51 push cx
01EF:2530 B93200 mov cx,0032
01EF:2533 E86A11 call 000036A0 ($+116a) <-- more nops
01EF:2536 E2FB loop 00002533 ($-5)
01EF:2538 59 pop cx
01EF:2539 E853F8 call 00001D8F ($-7ad) <-- here the monster attacks whein in contact with the hero
01EF:253C E99131 jmp 000056D0 ($+3191) (down)
01EF:253F 8A4502 mov al,[di+02] ds:[EF42]=3736
01EF:2542 32E4 xor ah,ah
01EF:2544 BA000A mov dx,0A00
01EF:2547 F7E2 mul dx
01EF:2549 8BD8 mov bx,ax

01EF:4687 51 push cx
01EF:4688 E820EF call 000035AB ($-10e0)
01EF:468B 59 pop cx
01EF:468C E2F9 loop 00004687 ($-7)
01EF:468E C3 ret

01EF:607E 8ADE mov bl,dh
01EF:6080 B700 mov bh,00
01EF:6082 03DB add bx,bx
01EF:6084 81C3C55A add bx,5AC5
01EF:6088 8B07 mov ax,[bx] ds:[0130]=0101
01EF:608A B600 mov dh,00
01EF:608C 03D0 add dx,ax
01EF:608E 8BDA mov bx,dx
01EF:6090 C3 ret

== Hero's pathfinding routine ==
The pathfinder algorithm the programmer chose was a simple variation of the A*, and is perfectly implemented. You can click on any tiles on the screen even on the invisible ones outside the room. If there is a clean path, the hero will reach that tile.

01EF:6449 E8E2D4 call 0000392E ($-2b1e)
01EF:644C E85800 call 000064A7 ($+58)
01EF:644F 833CFF cmp word [si],FFFF ds:[3911]=0000
01EF:6452 7503 jne 00006457 ($+3) (down)
01EF:6454 E95F03 jmp 000067B6 ($+35f) (down)

01EF:67B6 8B16E747 mov dx,[47E7] ds:[47E7]=0087
01EF:67BA 8B2EE947 mov bp,[47E9] ds:[47E9]=0097
01EF:67BE BB2D40 mov bx,402D
01EF:67C1 BE1941 mov si,4119
01EF:67C4 B93400 mov cx,0034
01EF:67C7 51 push cx
01EF:67C8 8B4402 mov ax,[si+02] ds:[491E]=01C0
01EF:67CB 051800 add ax,0018
01EF:67CE 2BC2 sub ax,dx
01EF:67D0 7302 jnc 000067D4 ($+2) (down)
01EF:67D0 7302 jnc 000067D4 ($+2) (no jmp)
01EF:67D2 F7D8 neg ax
01EF:67D4 D1E8 shr ax,1
01EF:67D6 8B0C mov cx,[si] ds:[4119]=0044
01EF:67D8 83C108 add cx,0008
01EF:67DB 2BCD sub cx,bp
01EF:67DD 7302 jnc 000067E1 ($+2) (no jmp)
01EF:67DF F7D9 neg cx
01EF:67E1 03C1 add ax,cx
01EF:67E3 D1E8 shr ax,1
01EF:67E5 8907 mov [bx],ax ds:[402D]=0000
01EF:67E7 83C302 add bx,0002
01EF:67EA 83C604 add si,0004
01EF:67ED 59 pop cx
01EF:67EE E2D7 loop 000067C7 ($-29)
01EF:67F0 BB2D40 mov bx,402D
01EF:67F3 B8FFFF mov ax,FFFF
01EF:67F6 B93400 mov cx,0034
01EF:67F9 3B07 cmp ax,[bx] ds:[402D]=0000
01EF:67FB 7204 jc 00006801 ($+4) (down)
01EF:67FD 8B07 mov ax,[bx] ds:[4095]=0000
01EF:67FF 8BD1 mov dx,cx
01EF:6801 83C302 add bx,0002
01EF:6804 E2F3 loop 000067F9 ($-d)
01EF:6806 3D0800 cmp ax,0008
01EF:6809 7201 jc 0000680C ($+1) (no jmp)
01EF:680B C3 ret
01EF:680C BB3400 mov bx,0034
01EF:680F 2BDA sub bx,dx
01EF:6811 83FB2D cmp bx,002D
01EF:6814 720B jc 00006821 ($+b) (down)
01EF:6816 83EB2D sub bx,002D
01EF:6819 D1E3 shl bx,1
01EF:681B 8B8F034A mov cx,[bx+4A03] ds:[4A14]=0E09
01EF:681F EB06 jmp short 00006827 ($+6) (down)
01EF:6821 8A8FD649 mov cl,[bx+49D6] ds:[49E7]=1E37
01EF:6825 32ED xor ch,ch
01EF:6827 A1E43F mov ax,[3FE4] ds:[3FE4]=5574
01EF:682A 03C1 add ax,cx
01EF:682C 2D6F54 sub ax,546F
01EF:682F 8BD8 mov bx,ax
01EF:6831 81C36F56 add bx,566F
01EF:6835 3B1E110E cmp bx,[0E11] ds:[0E11]=FFFF
01EF:6839 7501 jne 0000683C ($+1) (down)
01EF:683B C3 ret
01EF:683C 8BD8 mov bx,ax
01EF:683E B500 mov ch,00
01EF:6840 3D1A00 cmp ax,001A
01EF:6843 7207 jc 0000684C ($+7) (down)
01EF:6845 2D1A00 sub ax,001A
01EF:6848 FEC5 inc ch
01EF:684A EBF4 jmp short 00006840 ($-c) (up)
01EF:684C 8AC8 mov cl,al
01EF:684E 8A876F54 mov al,[bx+546F] ds:[AC1A]=0200
01EF:6852 243F and al,3F
01EF:6854 7501 jne 00006857 ($+1) (down)
01EF:6856 C3 ret
01EF:6857 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:685C 7503 jne 00006861 ($+3) (down)
01EF:685E EB11 jmp short 00006871 ($+11) (down)
01EF:6860 90 nop
01EF:6861 80BF6F5800 cmp byte [bx+586F],00 ds:[B01A]=0101
01EF:6866 7501 jne 00006869 ($+1) (down)
01EF:6868 C3 ret
01EF:6869 80BF6F5840 cmp byte [bx+586F],40 ds:[B01A]=0101
01EF:686E 7201 jc 00006871 ($+1) (down)
01EF:6870 C3 ret
01EF:6871 8BD1 mov dx,cx
01EF:6873 51 push cx
01EF:6874 E810AA call 00001287 ($-55f0)
01EF:6877 59 pop cx
01EF:6878 0AC0 or al,al
01EF:687A 7401 je 0000687D ($+1) (down)
01EF:687C C3 ret
01EF:687D 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:6881 880EF03F mov [3FF0],cl ds:[3FF0]=0000
01EF:6885 882EF13F mov [3FF1],ch ds:[3FF1]=0000
01EF:6889 8A4501 mov al,[di+01] ds:[3913]=0000
01EF:688C A2EE3F mov [3FEE],al ds:[3FEE]=0000
01EF:688F A2F53F mov [3FF5],al ds:[3FF5]=0C02
01EF:6892 8A4502 mov al,[di+02] ds:[4665]=200C
01EF:6895 A2EF3F mov [3FEF],al ds:[3FEF]=040C
01EF:6898 A2F63F mov [3FF6],al ds:[3FF6]=000C
01EF:689B E80EC5 call 00002DAC ($-3af2)
01EF:689E 803EC83F00 cmp byte [3FC8],00 ds:[3FC8]=0000
01EF:68A3 7501 jne 000068A6 ($+1) (no jmp)
01EF:68A5 C3 ret
01EF:68A6 BB1340 mov bx,4013
01EF:68A9 891ECC3F mov [3FCC],bx ds:[3FCC]=0000
01EF:68AD C3 ret

01EF:2DAC A0EE3F mov al,[3FEE] ds:[3FEE]=0000
01EF:2DAF 2A06F03F sub al,[3FF0] ds:[3FF0]=1515
01EF:2DB3 7902 jns 00002DB7 ($+2) (no jmp)
01EF:2DB5 F6D8 neg al
01EF:2DB7 8A26EF3F mov ah,[3FEF] ds:[3FEF]=1500
01EF:2DBB 2A26F13F sub ah,[3FF1] ds:[3FF1]=3915
01EF:2DBF 7902 jns 00002DC3 ($+2) (no jmp)
01EF:2DC1 F6DC neg ah
01EF:2DC3 02C4 add al,ah
01EF:2DC5 A2E937 mov [37E9],al ds:[37E9]=3737
01EF:2DC8 A09C3F mov al,[3F9C] ds:[3F9C]=3A3A
01EF:2DCB 32E4 xor ah,ah
01EF:2DCD A3F93F mov [3FF9],ax ds:[3FF9]=3F3E
01EF:2DD0 C606A83F00 mov byte [3FA8],00 ds:[3FA8]=3A3A
01EF:2DD5 C606C83F00 mov byte [3FC8],00 ds:[3FC8]=1515
01EF:2DDA C706F33F0000 mov word [3FF3],0000 ds:[3FF3]=1515
01EF:2DE0 C706CC3F0000 mov word [3FCC],0000 ds:[3FCC]=3B3C

Starting from memory location 0B6B:0A0E the subsequent 512 bytes are set to 1A1A x100h (256 times) by this function:
01EF:2DE6 BF0E0A mov di,0A0E
01EF:2DE9 B90001 mov cx,0100
01EF:2DEC 50 push ax
01EF:2DED B86B0B mov ax,0B6B
01EF:2DF0 8EC0 mov es,ax
01EF:2DF2 58 pop ax
01EF:2DF3 B81A1A mov ax,1A1A
01EF:2DF6 F3AB repe stosw

The code then creates a map with all possible paths of the hero:
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 07 08 09 -- 09 08
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 06 09 0A 09 08 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 05 0A 0B 0A 09 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 04 0B -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 02 01 02 01 02 03 04
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 05 04 03 02 -- -- -- -- 05
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 06 05 04 03 -- -- -- -- 06
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 04 -- -- -- -- 07
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 07 06 05 -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

01EF:2DF8 8B3E3746 mov di,[4637] ds:[4637]=4663
01EF:2DFC EB74 jmp short 00002E72 ($+74) (down)
01EF:2DFE 90 nop
01EF:2DFF A0F23F mov al,[3FF2] ds:[3FF2]=0000
01EF:2E02 8B1EF33F mov bx,[3FF3] ds:[3FF3]=0000
01EF:2E06 8887FB3F mov [bx+3FFB],al ds:[411D]=0050
01EF:2E0A 43 inc bx
01EF:2E0B 3B1EF93F cmp bx,[3FF9] ds:[3FF9]=0009
01EF:2E0F 7601 jbe 00002E12 ($+1) (no jmp)
01EF:2E11 C3 ret
01EF:2E12 891EF33F mov [3FF3],bx ds:[3FF3]=0001
01EF:2E16 8A26F93F mov ah,[3FF9] ds:[3FF9]=0009
01EF:2E1A 2AE3 sub ah,bl
01EF:2E1C A0F03F mov al,[3FF0] ds:[3FF0]=0B04
01EF:2E1F 2A06F53F sub al,[3FF5] ds:[3FF5]=0B04
01EF:2E23 7902 jns 00002E27 ($+2) (down)
01EF:2E25 F6D8 neg al
01EF:2E27 3AC4 cmp al,ah
01EF:2E29 7603 jbe 00002E2E ($+3) (down)
01EF:2E2B E98400 jmp 00002EB2 ($+84) (down)
01EF:2E2E A0F13F mov al,[3FF1] ds:[3FF1]=000B
01EF:2E31 2A06F63F sub al,[3FF6] ds:[3FF6]=000B
01EF:2E35 7902 jns 00002E39 ($+2) (down)
01EF:2E37 F6D8 neg al
01EF:2E39 3AC4 cmp al,ah
01EF:2E3B 7775 ja 00002EB2 ($+75) (no jmp)
01EF:2E3D E87700 call 00002EB7 ($+77)
01EF:2E40 7270 jc 00002EB2 ($+70) (no jmp)
01EF:2E42 3E885E00 mov ds:[bp],bl ds:[007A]=0002
01EF:2E46 A0F53F mov al,[3FF5] ds:[3FF5]=0B04
01EF:2E49 3A06F03F cmp al,[3FF0] ds:[3FF0]=0B04
01EF:2E4D 7523 jne 00002E72 ($+23) (no jmp)
01EF:2E4F A0F63F mov al,[3FF6] ds:[3FF6]=000B
01EF:2E52 3A06F13F cmp al,[3FF1] ds:[3FF1]=000B
01EF:2E56 751A jne 00002E72 ($+1a) (no jmp)
01EF:2E58 881EC83F mov [3FC8],bl ds:[3FC8]=0000
01EF:2E5C 57 push di
01EF:2E5D BF1340 mov di,4013
01EF:2E60 BEFB3F mov si,3FFB
01EF:2E63 8A0EC83F mov cl,[3FC8] ds:[3FC8]=0000
01EF:2E67 32ED xor ch,ch
01EF:2E69 890EF93F mov [3FF9],cx ds:[3FF9]=0001
01EF:2E6D F3A4 repe movsb
01EF:2E6F 5F pop di
01EF:2E70 EB40 jmp short 00002EB2 ($+40) (down)
01EF:2E72 C606F23F00 mov byte [3FF2],00 ds:[3FF2]=0100
01EF:2E77 FE0EF63F dec byte [3FF6] ds:[3FF6]=000B

part of 2DF8 routine this writes the temporary math:
01EF:2E7B E881FF call 00002DFF ($-7f) <-- call itself again
01EF:2E7E FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E82 C606F23F01 mov byte [3FF2],01 ds:[3FF2]=0000
01EF:2E87 FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2E8B E871FF call 00002DFF ($-8f) <-- call itself again
01EF:2E8E FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2E92 C606F23F02 mov byte [3FF2],02 ds:[3FF2]=0000
01EF:2E97 FE06F63F inc byte [3FF6] ds:[3FF6]=000B
01EF:2E9B E861FF call 00002DFF ($-9f) <-- call itself again
01EF:2E9E FE0EF63F dec byte [3FF6] ds:[3FF6]=000B
01EF:2EA2 C606F23F03 mov byte [3FF2],03 ds:[3FF2]=0000
01EF:2EA7 FE0EF53F dec byte [3FF5] ds:[3FF5]=0B04
01EF:2EAB E851FF call 00002DFF ($-af) <-- call itself again
01EF:2EAE FE06F53F inc byte [3FF5] ds:[3FF5]=0B04
01EF:2EB2 FF0EF33F dec word [3FF3] ds:[3FF3]=0000
01EF:2EB6 C3 ret

== Notable Memory locations for hero's and monster's movement ==

3F92 = CURRENT QUEST
3F93 = Hero's current tile (see tilemap below)
3F94 = ACTIVE HERO'S ROOM

3F99 =
3F9A = END TURN FLAG
3F9B = action performed?
3F9C = REMAINING STEPS
3F9D =
3F9E =
3F9F = MONSTER'S X position
3FA0 = MONSTER'S Y position
3FA1 = Horizontal distance Monster-hero
3FA2 = Vertical distance Monster-hero
3FA3-3FA4 (word) = next monster's step (see 40A2)
3FA5 = HERO'S X position
3FA6 = HERO'S Y position
3FA7 = Active hero
3FA8 = LOS 00=start 01=blocked 02=free
3FA9 = steps to take to reach the hero?
3FB5 = Target Hero ID (FF=Monster)
3FB9 = current total defense dice of the active hero during DEFENSE
3FC5 = Quest specific hero counter (usually identical to 3FC6) modified by 26E8 call
3FC5 = hero counter (complementar) 1111 = 0F = all heroes OUT modified by 26E2 call

3FD0 = WORD map ID (temporary for the quest) offset of ATTACKED monster in map memory (586F)
3FD2 = BYTE rolled skulls (by monsters or heroes)
3FD3 = BYTE rolled shields (by monsters or heroes)
3FD4 = WORD monster's profile location (during attacks)
3FD6 = WORD hero's profile location (during attacks)

3FE7 = QUEST specific OBJECTIVE (1=ACCOMPLISHED)

Memory locations for hero's movement (pathfindig)
3FEE = HERO'S X STARTING POSITION
3FEF = HERO'S Y STARTING POSITION
3FF0 = mouse click X position (X stop)
3FF1 = mouse click Y position (Y stop)
3FF2 = 03
3FF3 = FF
3FF4 = FF
3FF5 = HERO'S X POSITION (copy)
3FF6 = HERO'S Y POSITION (copy)
3FF9 = rolled movement
3FFB - 4012 = math locations that varies among 00,01,02,03, at the end every byte is set to 03 (bytes here are never cleared)
4013 -> locations with definitive hero's path (bytes here are never cleared)

hero's directional movement values:
00 = up
01 = right
02 = down
03 = left
The hero's moving animation is then delegated to the main loop routines that starts reading from 4013 till [3FF9].

4097 = infinite actions if set to a number different from 00
402C = Wand of recall extra action 00=no 01=yes
4BBC = location where TRAP special event number is put upon entering the room (FF=Searched)

40A2 = here is stored the path the monster will follow by 607E (?) call. A sequence of words that specify directional movement
00 01 = down
00 FF = up
FF 00 = left
01 00 = right
40CA = last location of the path to follow. (A640 = 2 moves)

Screen tiles layout. The tile under the current hero is saved in [3F93]
/\
/00\
/\ /\
/01\/02\
/\ /\ /\
/03\/04\/05\
/\ /\ /\ /\
/06\/07\/08\/09\
/\ /\ /\ /\ /\
/0A\/0B\/0C\/0D\/0E\
\ /\ /\ /\ /\ /\
\/0F\/10\/11\/12\/13\
\ /\ /\ /\ /\ /
\/14\/15\/16\/17\/
\ /\ /\ /\ /
\/18\/19\/1A\/
\ /\ /\ /
\/1B\/1C\/
\ /\ /
\/1D\/
\ /
\/

The hero's moving animation is delegated to the in-game main loop routines.

= [DATA SEGMENT] Main Pointers =

The file inside the exe that represents the Data Segment (every byte that is not strictly CODE) starts at offset '''0x9BE0'''. Every pointer is relative to this address. 

== Heroes' default profiles ==

offset mem pointer BP MP EQ AD DD ID
0xE243 0B6B:4663 00 00 00 00 00 00 08 02 1D 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00 00 00 Barbarian
0xE25D 0B6B:467D 00 00 00 00 00 00 07 03 32 00 00 00 00 00 00 80 00 00 00 00 02 02 00 00 00 01 Dwarf
0xE277 0B6B:4697 00 00 00 00 00 00 06 04 35 00 00 00 00 00 00 00 00 00 00 00 02 02 00 00 00 02 Elf
0xE291 0B6B:46B1 00 00 00 00 00 00 04 06 4A 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 03 Wizard
0xE2AB 0B6B:46CB 00 00 00 00 00 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 01 02 00 00 00 04 Ragnar

The byte positions are the same of [[HeroQuest Savegame Format]]. Load and save operations read and write at these addreses.

When initializing the heroes the default values are resetted by the function 01EF:78D3 that resets all values to zero and Body and Mind points to default
0x00DF74 0B6B:4394 08 07 06 04 02 Default Body point values (last one is Ragnar's)
0x0148FB 0B6B:AD1B 02 03 04 06 00 Default Mind point values

Character initialization code:
01EF:78D3 8A1E9E40 mov bl,[409E] ds:[409E]=0002
01EF:78D7 B700 mov bh,00
01EF:78D9 8B879443 mov ax,[bx+4394] ds:[4396]=0406
01EF:78DD 884406 mov [si+06],al ds:[469D]=0406 <-- sets default body points
01EF:78E0 8A871BAD mov al,[bx-52E5] ds:[FFFFAD1D]=EC8B
01EF:78E4 884407 mov [si+07],al ds:[469E]=3804 <-- sets default mind points
01EF:78E7 C6440E00 mov byte [si+0E],00 ds:[46A5]=0000 <-- resets Owned weapon
01EF:78EB C6440F00 mov byte [si+0F],00 ds:[46A6]=0000 <-- resets Owned armour
01EF:78EF C6440D00 mov byte [si+0D],00 ds:[46A4]=0000 <-- resets Owned special items
01EF:78F3 C744090000 mov word [si+09],0000 ds:[46A0]=000A <-- resets GOLD
01EF:78F8 C6441100 mov byte [si+11],00 ds:[46A8]=0000 <-- resets Equipped weapon
01EF:78FC C6441200 mov byte [si+12],00 ds:[46A9]=0000 <-- resets Equipped special item
01EF:7900 C6441300 mov byte [si+13],00 ds:[46AA]=0200 <-- resets Equipped armour
01EF:7904 885C19 mov [si+19],bl ds:[46B0]=0002 <-- refresh hero's ID
01EF:7907 803E9E4001 cmp byte [409E],01 ds:[409E]=0002 <-- if dwarf
01EF:790C 7504 jne 00007912 ($+4) (down)
01EF:790E 804C0E80 or byte [si+0E],80 ds:[46A5]=0000 <-- gives him the toolkit
01EF:7912 BB0800 mov bx,0008 <-- "The character is renewed" string
01EF:7915 E8D50F call 000088ED ($+fd5) <-- draws the scroll

== Searched room table ==

The game keeps track of the ''searched'' room by storing the value FF into two tables (treasure and traps searches) using the room number as relative offset (''bx''). 
Room numbers go from 00 to 2A so each table is 2B bytes long and every byte of the table is set to 00 at the beginnng of the quest. 
The code that puts FF into the table: 
mov byte ptr [bx+4B70h], 0FFh [0B6B:4B70] starting address of TREASURE search
mov byte ptr [bx+4B9Bh], 0FFh [0B6B:4B9B] starting address of TRAPS/SECRET PASSAGES search
NOTE: upon starting a quest, every Special event ID is put into these tables replacing the 00.

== Equipment screen ==
With ''position on screen'' is intended the string header 11XXYY

0x014863 Hero's classes label (ie. Barbarian) position on screen
0x00DF2B pointers block to default Hero's classes (5 pointers)
0x00DF35 default Hero's classes labels (5 Labels)

0x014873 Hero's name label (ie. Sigmar) position on screen
0x00E1B7 pointers block to default Hero's names
0x00E1C5 default Hero's names labels (5 Labels)

0x0141A4 first epilogue panel text (its pointer '''A5C4''' is written inside the code at offset 0x0649)
0x0143A2 second epilogue panel text (its pointer '''A7C2''' is written inside the code at offset 0x0658)

0x0147F7 actual gear prices (hexadecimal) - 4x12 = 30 Bytes (2 bytes for equipment bit mask and 2 bytes for default price, little endian)
0x01482B pointers block to single gear costs - 2xC = 18 Bytes
0x014843 price (in decimal) labels - 1F Bytes

0x01486F "GOLD" label position on screen
0x014867 gold amount position on screen (default is 0000)
0x014877 equipment names position on screen
0x01487B pointers block to the pointers in [language].bin where the item names are - 0x18 Bytes

== Various ==
Every WORD offsets are hexadecimal, little endian values.

* 0x00CDF3: Game font (2F0h bytes long). 8x8 - 94 chars, can be edited with Nyerguds' Westwood font editor.

* 0x00DCB5: Sequence of 20 bytes (4 groups of 5 bytes) with facing codes of the heroe's sprites in the 4 directions (S-E-W-N).
* 0x00DCC9: 4 words for sprite direction codification FF00=South ecc..
* 0x00DF95: Sequence of 11 groups of 4 bytes used for teleportation in "castle of mistery" quest (Room, X, Y, door direction that could be 00,01,1A)
* 0x00DFDC: Sequence of 21 groups of 6 words used to define furniture (first word: X,Y dimension of the frame - second word: Y,X offset in pixels from the origin tile - third word: offset of the frame in FURN.VGA)
* 0x00E05B: Group of 4 offsets for the walls graphics in graphics.vga (2 wariations of the left wall and 2 of the right wall).
* 0x00E062: 26 bytes (00 or 01) used for wall variations based on ROOM tile position number (see diamond scheme above). Basically each position has its own fixed wall texture that is displayed only if a wall is present.
* 0x00E3E6: List of 28 (1Ch) Groups of 5 bytes each representing Movement (BYTE), Attack (BYTE), Defense (BYTE) and Death special event offset (WORD) of each monster (00-1B).
* 0x00E8E8: 32 pointers (words) to the monster profiles in game.
* 0x00E92A: Monster's profiles location. Monsters are numbered in-game from 00 to 20h (maximum) and profiles (10 bytes) are stored starting from here (0x4D4A in memory).
* 0x00ED28: Sequence of 256 BYTES used as index for drawing the 2D map walls, listing all possible states of wall and doors (values from 00 to FF that refer to the graphic slot IDs inside MAPS.VGA).
* 0x00F64F: List of 12 pointers to magic spells specific routines into code segment.
* 0x00F669: List of 30 pointers to special events specific routines into code segment.
* 0x00F6A5: List of 30 pointers to monster's profiles location in memory (each pointer is 1A from the other).
* 0x00F703: VGA Palette - 300h bytes as RGB 256 colours

* 0x013CDD: List of 31 (words) offsets of the HEROES frame animation (attack, defense, death) in MEN.VGA
* 0x013D1B: List of 31 (words) frame dimensions (X,Y) of the previous corresponding frames in MEN.VGA
* 0x013D59: List of 31 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the previous corresponding frames in MEN.VGA
* 0x013D97: List of 8 (words) SCREEN offsets (in linear pixels starting from the origin top-left) of the monster animation frames in MONSTERS.VGA

* 0x014125: Sequence of 42 offsets (84 bytes) to the tile graphic of the rooms and corridors of isometric map (01-13 points all to 1F80, the tile for the corridors)
* 0x014179: Sequence of 2A bytes that are indexes of the tile graphic of the rooms and corridors of 2D map (01-13 are all 01, the index tile for the corridors)

* 0x014920: position on screen of a bar filled with 20h char used to delete the equipment names while moving the mouse over the icons
* 0x014924: Text colour (1F is white)
* 0x014925: Background colour (14 is transparent)
* 0x014943: equipment names position on screen during a quest (the subsequent 28 zeroes are the placeholder)

* 0x014A42: Sequence of 7 pointers in language.bin of the potion effect texts
* 0x00E472: Sequence of 5 pointers in language.bin of the potion finding texts (all but holy water and heroic brew, that has direct pointers inside the code)
* 0x00E4FE: Sequence of 1Ch pointers in language.bin of the monsters names (2D map)
* 0x00E536: Sequence of 30h index in maps.vga that assign names of the object (01=fallen rock, 00=all traps or hidden objects with no name, 03=Stairs) in OBJECT BLOCK order.
* 0x00E566: 23h bitmasks that define which object is passable by projectiles
* 0x00EE2D: Offsets (12) sequence of object icons in maps.vga (from ID 30 to 3B, 00D1 = fallen rock, goblin) 00D1
* 0x00EE45: Offsets sequence of monster's icons in maps.vga (ID 00 = 40D3 = goblin)

== Intro Sequence ==
Every text panel of the intro resides into '''INTRO.EXE''' and they're in English only. 
In order to translate them (or change the lenght of the text) you have to uncompress the exe first, then Locate every pointers of each panel. 
The data segment inside the exe starts at '''0x01C0'''. Every pointer is relative to this address. 

{|class="wikitable"
! Panel # !! default pointer value !! pointer exe offset
|-
| 1 || 0603 || 0x0212
|-
| 2 || F203 || 0x0214
|-
| 3 || 9B04 || 0x0216
|-
| 4 || 8706 || 0x0218
|-
| 5 || 7008 || 0x021A
|-
| 6 || CA0A || 0x021C
|}
The panels layout follows the same rules described under [[HeroQuest Strings Format]]

0x001675 Game font, this is the exact copy of the font in quest.exe (See various offests section above).

= Protection screen =
to restore shield protection in UNCOMPRESSED QUEST.EXE modify
offset 0x0541 from 90 90 90 to E8 DC FE (if you modify these bytes only the shield screen stays and regardless of page entered the game starts anyway)
offset 0x0549 from EB to 74