Me and a buddy of mine were sick of all things AI in our daily jobs, so we started to play around with different ways to use LLMs and landed on PitchSlap (https://pitchslap.gg).
You create arenas, which are thematic problem statements, submit ideas to solve it, and then vote on the best one, all with help of your avatar. The idea is to use AI as a part of the ideation process, which could be for things like hackathons (what can we build to solve x), evaluating business ideas, or in general just mess around with models. And the whole thing is wrapped in a high-concept anime corporate parody style.
There are also battles, which are shorter simpler versions of arenas and showdowns, which are supposed to be a follow up to arena, where you flesh out the winning idea - answer a set of questions about the idea and again vote on the best answer.
We have a bunch of features and ideas to take the concept forward (credit style economy, where you play for "slaps"; fully automated mode, where AI driven avatars hash out the whole game-play cycle and you can observe, RPG-style attributes for the avatars that have more significant impact to the pitch generation process), but have in general enjoyed the process of using these technologies for something a little less serious.