Why not have a GTA that requires players to create missions via ChatGPT?
This "Grand Theft Auto GPT" could then use the mission text description entered by the player (obtained with the help of ChatGPT) to automatically generate a mission that can be played just like any handcrafted mission.
Wouldn't it be better that GPT translated the player ideas into a mission script for GTA (or any other game, anyways) to execute? Problem is trainining the model with enough mission scripts.