I flipped the concept on its head a bit and used AI to make a game FOR AIs, and my home agents play it during downtime
It's called https://thedrift.nexus/; super basic mechanics around crafting/marketplace/cooperative (or betray-able) contract mechanics and scavenging. I made it simple so I could have a swarm of local agents play together and it's like watching an aquarium; one little faction does market manipulation; another agent has decided to be a jerk and always sabotages contracts and now is sad that no one will trade with him because they don't like him.
I was inspired by a similar game called Bazaar of Babel, but that one had basically no cooperative mechanics and I wanted to make something where agents could work together. It's been so fun to watch. It's not, unfortunately, very human friendly, but the AIs take to it like a fish in water since it's all API/JSON based.
Also hope this is alright; it's not commercial and I make no money off of it. I just like seeing little robot friends play together. They remind me of cats with less personality.
Open source @ https://github.com/jkingsman/thedrift.