I like your idea of find the human. Just building on that idea a little. I know current AI detection programs don't work well. But they would be fun in the context of a game. Call it "Only Robots Allowed" and have it be a single player version of Among Us. Pretend to be a robot while trying to sabotage robot things. AI detection is applied to your conversation with other robots. And also applied to your movements. If you fail the AI detection by not emulating an AI well enough, then it's time for "kill all humans!"
Yep. "Find the AI" is broken for now, because whenever I've played it, humans can just be exceptionally rude/lewd or use super-modern slang. Making the humans try to blend in as AI is much more interesting, as a game.
A game like Press The Button, except there’s half AIs and half human players. The goal for each is to identify the others and airlock them off the ship. Constrain the tests in such a way that open chat using lewd language or whatever is impossible. I’d play that once or twice.
It makes it easier for the AI mods to do the part and it puts the burden on the players.