me and rufee prepared a Quake coop server for anyone who wants to enjoy some ancient Quake action. You can connect with pretty much any Quake or QuakeWorld client. Like WinQuake, GLQuake, Quakespasm, EzQuake. Even DOS Quake in theory should work. For now it should run 24/7. The address is:
Also we have a Half-Life deathmatch server running for years now 24/7. Many maps, many from mappers on TWHL. Fast map download enabled.