But can you grab what this Ai has learned and generate the 3d models, maps and code to turn it into an actual game that can run on a user's PC? That would be amazing.
What would be the point? This model has been trained on an existing game, so turning it back into assets, maps, and code would just give you a copy of the original game you started with. I suppose you could create variations of it then... but:
You don't even need to do all of that - this trained model already is the game, i.e., it's interactive, you can play the game.