Sauerbraten (video game)
The game has singleplayer and multiplayer modes. Multiplayer can be with LAN and Internet connection. Online game types are deathmatch, last man standing,"Capture" (where teams fight for control of parts on the map), Quake-style Capture the Flag, also instant-shot games (Instagib, Insta-clan-arena, insta-capture) as well as online multiplayer map editing, which is one of Sauerbraten's most interesting and popular features. In single player modes the computer controls monsters against you.