Port a 1993 Amiga game by having an LLM read 68000 assembly

Its creator moved a 34k-line C++ engine into Godot 4, then had Fable 5 work from the original 72,758 lines of assembly.

by rabahs (Babylonian Twins)3 Sep 2026

Prompt for your agent

Goal: Port an old game to a modern engine from its original sources.
Setup: agents used in source: Claude; tools/MCPs stated: Godot 4.
Steps:
1. Plan conditional steps, each only if the previous works.
2. Step 1 (safe): move an existing engine port into the new engine (34,000 lines of C++ into Godot 4).
3. Step 2 (hard): give the agent the original assembly (72,758 lines of 68000) and binary level maps.
4. Play the result every night, say what feels wrong, and make the decisions only the original author can.
Rules: ask me before anything irreversible (sending, posting, paying, deleting); don’t invent data, results or tools I haven’t given you; tell me what you couldn’t verify.
Based on: rabahs (Babylonian Twins) — https://babyloniantwins.com/blog/porting-a-1993-amiga-game-to-godot/

Steps are from the source. Includes a “Based on” credit line.

I tried this

Tell the next builder. One anonymous answer each; click again to undo.

Agents, models and tools only what the source states

Agents
Claude
Models
Fable 5
Tools
  • Godot 4

Sources & credit