I’m on mobile right now but sentdex created GTA via a neural network. By that I mean he did not put the physics or rules of GTA in but the Nn figured them out via training. In the same way we use SD to create beautiful pictures you can have games trained and created. You will still need testers ( hopefully AIs at that point) to find the messed up hands but I definitely see it happening quicker than any of us reasonably would guess! Exciting!