Rain.run is a fun game, it used to zap you for playing but doesn't anymore. I think it's cause the dev needs funding.
Discussion
Wow, that's new! Do you know who made it?
Yes, it's nostr:npub1uqzgayu7mf2dwu0h3ydvvlyy87v7rpfyeeldvtud3zcd32xpdqdqjvd98g he made a connect4 game too that you can play with Nostr friends.