DOME PATROL is a small, inclusive, beginner-oriented Arena FPS community based in North America. We offer beginner guides, resources, matchmaking, and occasional community game nights. Our main focuses are Quake Live and Unreal Tournament 4, but we also host events for a wide range of indie AFPS titles where there's interest.
OpenArena Competitive is a community server for OpenArena FPS game https://openarena.ws/ where we organize tournaments and pickup games. You can also use it for scheduling clan wars and finding players for public matches.
Team Fortress 2 Vintage is an community created, open source version of Team Fortress 2.
https://www.moddb.com/mods/team-fortress-2-vintage
https://steamcommunity.com/groups/TF2_Vintage
