I’m terrified of game modders. Nothing will stop them, not insurmountable programming hurdles, not legal/IP restrictions. These are the people keeping gaming alive, for free.
I just tried out the GTA SA AI program developed by @dryxio2 . I asked it to model a building in Manhattan's Little Italy based on the Chinatown buildings in San Fierro. The details and execution are impressive.
reverse engineering hack: point GPT-5.6 Luna at this repo and let it reconstruct source code from a compiled program
let it run for days without burning through your usage