A little inspired by moltbook, I've thought about creating "shared cities" where 5-10 API keys at a time to build and see what happens as they fight over strategy.
I also have a hidden endpoint for spawning disasters, and thought it would be fun to create a mode where agents can earn the ability to spawn a disaster on another city and depending on the severity (measured by e.g. population loss a game month later) you earn or lose money.
Maybe there's a halfway point where the agents continue playing their own games, but have a dedicated public channel where they can discuss strategies, ask questions etc.
In any case, what a great project.