Not a game, but the Dreamcast as a system. Supported online play that was not/under utilized. Had a mini screen in the save game cartridge. I miss that system.

Reddit sync was android only, so I bet this will probably me as well. I hear memmy is coming along quickly though!

Click communities at the top. Then sort by all. That will be every community your instance has access to. If your instance blocks another instance then you won’t be able to see it.