To be specific, I’m trying to find a multiplayer game to play that isn’t team-based or co-op, which most of them seem to be.
EDIT: To narrow down the genre a little bit, I’m looking for shooters (first or third person, doesn’t matter) or something more on the casual side.
You can still find populated Quake 3 servers out there. That’s always fun, especially Instagib with the rail gun.