At Rec Room, we made tons of AI games. The problem is that they weren't economical. You need to make a ton of money if your players are burning tokens: https://www.tyleo.com/professional-work-history/rec-room-ugc...

I think folks are having a lot better luck on the tools side. Some interesting things are happening in the AI Game Dev Org Discord: https://www.tyleo.com/blog/the-excommunicated-devs-making-ga...