Basically c/chat + c/gaming. Anything that increases socializing is good especially considering loneliness is on the rise in modern times.
The Lemmyverse chess event just ended https://lemmy.ca/post/292674 which is the most collaborative fedi gaming thing I’ve heard of.
Lemmygrad might have a video gaming together thing too.
List what multiplayer games you’re willing to play with other Fedizens.
Check out https://libregaming.org
Especially the match-making channels and the onFOSS events.
Open-source games only, but it’s a nice community of players.
Very cool.