Playground is a browser-based experiment where you describe a game and then play a version generated by AI. You can adjust rules, characters and physics by chatting, and share the result with a link. U.S. adults can use it free, with higher limits for eligible Google One subscribers.
This is a particularly good way to evaluate AI software creation because a game reveals mistakes immediately: controls either respond or they do not. It also makes a fun short experiment with a basketball theme.
Action: ask for a 60-second basketball arcade game, play it, then change the scoring or ball physics. Judge the result on whether the game actually works.