Claude Fable 5 Ports Classic Amiga Game to Godot

Developer Rabah Shihab utilized Claude Fable 5 and the Claude Code terminal interface to port his 1993 Amiga game, Babylonian Twins, to the modern Godot 4 engine. The AI model processed two distinct codebases: a 34,000-line C++ engine from a 2010 mobile port and the original 72,758 lines of uncommented 68000 assembly language. In a single evening, the model converted the C++ code into a playable Godot prototype in under four hours, translating physics, collisions, and menus.

The more complex challenge involved the 1993 assembly code, which was written for an Amiga 500 with 512KB of RAM. Claude Fable 5 successfully configured the vasm assembler toolchain to reproduce byte-identical binaries of the original game. It reverse-engineered the custom 16-bit tile map formats, level loaders, and copper-list background gradients. The AI even resurrected a 1,254-line map editor from 1993, running it inside the FS-UAE emulator to verify level data. It then rewrote the original 50 Hz assembly behaviors into Godot's native GDScript.

Beyond code translation, the AI integrated the original 1993 game as a playable launch option inside the modern 60 Hz Godot version, a task completed in under two hours. Claude Fable 5 also automated the release pipeline. It generated localized screenshots in eleven languages, managed store assets, and used browser automation to navigate the Steamworks dashboard, filling out metadata and setting up achievements.

For software practitioners, this project demonstrates that advanced LLMs can successfully parse highly specialized, low-level legacy code with minimal training data. By combining code translation with automated execution environments, developers can rapidly modernize historical software while preserving exact original behaviors.