Ai to help make rpg game

I was in the same situation at the start and the honest answer is there isn’t an AI that will just build a full 3D RPG with you from scratch. What actually works is using AI as a helper, not the main tool. Pick a game engine first and follow a basic tutorial, then use AI to help with scripts, fixing errors, and explaining things you don’t understand. Starting with a smaller project is way better, because trying to jump straight into a full RPG usually gets overwhelming fast.