When new game makers ask me for advice, the first thing I ask them is, "Do you want to be a game designer or a game publisher?"
It's really a trick question, but it's intended to demonstrate they are two different skillsets and disciplines that both require effort in order to be successful (even marginally).
So far my experience with Mastodon has been that local timelines are great, but take multiple accounts, and the federated timeline is... not good, no matter what instance I'm on.
I think my ideal experience would be a way to merge multiple timelines into a personal curated federated timeline. What's the fediverse equivalent of a pocket dimensions?
So. I have had this idea percolating in my head for years now.
Basically its Dog Day afternoon the RPG.
The idea would be One player plays a Hostage Negotiator, One plays the Hostage taker. I would consider optional rules for playing hostages or additional hostage takers.
Hostage takers would have hidden goals that the Negotiator is trying to figure out.
The goal would be to make it a very intimate game with lots of power to change dynamics on both sides.