A while ago I was playing with chatgpt and had it create me a text based game. It took some coaxing but eventually it actually created a pretty compelling beginning to a game at least. This wasn't D&D, I had chatgpt just make the rules but the interesting part was creating a compelling story. Maybe it would have fallen apart after a little bit of game play but it was neat. I could see the fun of having completely unique and instantly created modules to run through.