Fable 5 reportedly decoded a 1989 DOS game overnight
A Reddit user says they used Fable 5 to inspect the DOS executable for the 1989 game Midwinter. They claim it mapped and labeled 602 functions, including the terrain generator, vehicle physics, enemy AI, graphics formats, and audio system. They also say it rebuilt the terrain generator in Python, with output that matched the original game bit-for-bit. The user adds that a simpler 1989 DOS game was reproduced from raw disk files in about an hour.
Key points
- The post says Fable 5 decoded the Midwinter DOS executable overnight.
- The user claims 602 functions were mapped and labeled.
- The terrain generator was rebuilt in Python and reportedly matched the original bit-for-bit.
- The workflow used parallel agents, according to the post.
- The post does not give detailed cost, token use, or full verification data.
Quick term guide
- DOS executable
- A program file made to run on DOS, an older PC operating system.
- functions
- Small blocks of code that each perform a specific job inside a program.
- bit-for-bit
- It means two outputs match exactly, down to the smallest data unit.
- AI agent
- An AI program that can inspect information and suggest what to do next.
- workflow
- A repeatable set of steps for getting a task done.
- benchmark
- A test used to compare speed, quality, or cost.
- validation
- Checking whether real people understand, want, or would use an idea before spending more time on it.
- token cost
- The money or usage spent when sending text to an AI model and getting text back.