Getting Started

Getting Started

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Welcome to the Might & Magic II (Amiga) reverse-engineering wiki. Everything here is rebuilt from the original 68000 disassembly. Pick a path below based on what you want to do.

flowchart LR
  bin["Amiga binary<br/>mm2 (68000)"] --> dis["Disassembly<br/>IRA + Capstone"]
  dis --> docs["EXTRACTED/docs<br/>format specs - ASM traces"]
  docs --> cod["Codecs (Python + C)"]
  docs --> ed["MM2ED editor"]
  docs --> gal["Sprite gallery"]
  docs --> walk["Map walker"]

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Choose your path

Understand the project Overview - doc map & address rules dat Files and Formats - every .dat file Runtime Memory Map - A4 workspace Full Analysis - long-form narrative

Edit game data MM2ED Editor - ImGui editor build items.dat - monsters.dat map.dat - event.dat RE Tools - Python round-trip codecs

Trace game logic Main Loop and Map - scheduler Exploration Input and Options - key dispatch Combat Overview -> Combat System Events by location - all 71 map scripts Event Script Opcodes - script VM · Event Script DSL Town Services - pub, temple, guild, training, blacksmith 3D View and Game Screen - renderer · Data Hunk

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How the data fits together

The world is map.dat (geometry) + attrib.dat (environment) + event.dat (scripts). Entities and rules live in monsters.dat, items.dat, spells.dat, and roster.dat.

flowchart TD
  map["map.dat screen<br/>512 bytes"] --> p0["Page 0 - visual walls"]
  map --> p1["Page 1 - collision<br/>bit 0x80 = event"]
  p0 --> r3d["3D renderer 0x2900"]
  p1 --> ev["event.dat triplets"]
  ev --> vm["script VM 0x172CA"]
  vm -- OP_12 --> combat["combat round loop 0x12A22"]
  attrib["attrib.dat"] -- tileset/env --> r3d

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Combat is a round loop kicked off by event opcode OP_12 - see Combat Overview for the full chart and the command keys (A/F/S/C/U/B/R/E/V).

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Interactive tools

Tool	Link	What it does
Map walker	GitHub Pages	First-person 3D - all 60 screens
MM1 map walker	GitHub Pages	MM1 MAZEDATA - 55 screens
Sprite gallery	Gallery	Decoded .32 tilesets + .anm combat art
MM2ED	Editor docs	Edit .dat files with live hex + previews

Might and Magic I (DOS)

Cross-walk docs for the predecessor: MM1 Overview - MAZEDATA - outdoor conversion - WALLPIX art. Items and monsters are not decoded yet - see status page.

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Important

Endianness - MM2 .dat multibyte fields are little-endian on disk (matching Blitz3D editors and our codecs). The 68000 runtime may byte-swap after load - always trace ASM before assuming otherwise.

What's still unknown?

Open Questions tracks unresolved fields and next ASM trace targets.