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Might & Magic II

Amiga reverse-engineering wiki

_{Data formats · 68k runtime · combat · events · graphics · MM2ED}

How it all fits together

flowchart LR
  map["map.dat<br/>geometry"] --> r3d["3D view 0x2ECE"]
  attrib["attrib.dat<br/>environment"] -- tileset --> r3d
  map -- bit 0x80 --> event["event.dat<br/>scripts"]
  event --> vm["script VM 0x172CA"]
  vm -- OP_12 --> combat["combat 0x12A22"]
  combat --> monsters["monsters.dat"]
  roster["roster.dat<br/>party"] -- equips --> items["items.dat"]
  items -- use byte --> spells["spells.dat"]

Loading

_{Getting Started walks each of these paths.}

Creepy Crawler

Town auto-maps

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📦 Data formats ASM-confirmed .dat layouts with round-trip Python & C codecs. items.dat — 256 items, class masks, use spells monsters.dat — abilities, attacks, sprites map.dat — 60 screens × 512 bytes event.dat — container format Events by location — all 71 scripts roster.dat · spells · attrib.dat → Format inventory

⚔️ Game systems 68000 traces for combat, world simulation, and scripts. Combat overview · full ASM trace Town services — pub, temple, guild, training Spell sources — where every spell is obtained Audio / SFX / music — audio.device, Controls menu 3D view & collision — wall pages, auto-map · exploration keys Events per map · opcodes · text rendering · script → text Data hunk — static A4 tables · town services Main loop & map · copy protection Title screen · character UI → Full analysis

🐉 Sprite gallery Decoded .32 tilesets and .anm combat animations from original assets. Monster .anm — GIF + contact sheets Monster variants — Amiga vs CGA/EGA World sprites · tilesets Monsters catalog · items catalog Auto-map cartography · 3D views → Gallery home

🛠️ Tools & code Decoders, disassembly helpers, and the ImGui data editor. RE Tools — Python disassemblers & codecs MM2ED — edit every major .dat file C lift scaffold — typed structs & loaders Map walker ↗ — interactive HTML5 on GitHub Pages → Open questions

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By the numbers

256 items

256 monsters

96 spells

60 map screens

71 event locations

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Tip

New here? Start with Getting Started → Overview → format inventory. Editing data files? Jump to MM2ED Editor. Tracing combat or scripts? Combat Overview · Combat System · Event Script Opcodes. Audio? Audio Sounds Music.

Important

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

📑 All quick links

If you want to…	Start here
Understand the project	Getting Started → Overview → dat Files and Formats
Edit .dat files	MM2ED Editor + sidebar Data formats
Trace combat or scripts	Combat Overview · Events by location · Event Script Opcodes
Town shops & services	Town Services · Spell Sources · Event to String Path
Audio / walk beep / SFX	Audio Sounds Music
Exe-embedded UI strings	Embedded Exe Strings
MM1 (DOS) maps & art	MM1 Overview · MAZEDATA · MM1 map walker ↗
Browse decoded art	Gallery
See what's still unknown	Open Questions
Boot & memory map	Startup and Init · Runtime Memory Map · Data Hunk
Exploration keys & options	Exploration Input and Options
Event script authoring	Event Script DSL · Event Text Rendering
3D renderer deep-dive	Amiga 3D Render Process · Scripted Scene Graphics
Remake draw path	Amiga Cpp Play Screen Draw · Game Remake
RE tooling	RE Tools

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