-*- mode: outline; coding: utf-8 -*-* Shuter.** Linux.*** Wolfenstein: Enemy Territory.*** UT2004 (Unreal Tournament).Unreal Tournament 2004 is closed source, but it's one of the few commercialgames which also provide a native Linux port.*** Quake 3.Game was licensed under the GPL in 2005. ioQuake 3 continued development toQuake 3, fixing bugs and bringing new improvements to this true classic game.*** Urban Terror.