Cube 2: Sauerbraten is a cross-platform, Quake-like first-person shooter that runs on Linux, Windows and Mac OS X using OpenGL and SDL. The game features single-player and multiplayer gameplay and contains an in-game level editor. The game currently has singleplayer and multiplayer. Multiplayer functionality is possible with LAN, local and online play.
Great news for those of you who like games and don't have anything to do this weekend: yet another game has been updated.
There have been 14 months since the last "Cube 2" Sauerbraten update - a lot of time for some polishing but also many new features. The new version 2010-07-19 "Justice Edition" brings two new player models, 30 new user-created maps, several new game modes (including Efficiency CTF, Efficiency Hold, Efficiency Protect, Hold, and InstaHold), a mini-map, clock and crosshairs and many many more new features which you can read about @ Cube 2 history page.
"Cube 2": Sauerbraten offeres the following gameplay modes: Free-For-All (everyone for themselves, all weapons allowed), InstaGib (deathmatch, rifles only), Capture (where teams fight for control of points on the map, all weapons allowed), Capture the Flag (two teams fight to capture the other's flag and return it to their base), Teamplay (defeat the other team's players to score points for your team), Tactics (FFA, but players spawn with random equipment), Efficiency (FFA, but players spawn with all equipment) and Protect (teams try to touch each others' flag). Insta, regenerative weapons ("regen") or Teamplay versions of some of the game modes are available, as well as cooperative map editing, even online—one of Cube 2's most interesting and popular features. You can of course also play Cube 2 in single player mode: both in an episodic gameplay or deathmatches on multiplayer maps against AI bots.
How to run "Cube 2": Sauerbraten on Linux
"Cube 2": Sauerbraten does not require any kind of installation under Linux. All you have to do is download the Linux version, extract the archive and then double click the "sauerbraten_unix" file (don't try to run it directly from the "bin" folder - that won't work!).
DownloadDownload Cube 2: Sauerbraten "Justice Edition" for Linux, Windows and Mac OSX
Via Phoronix; Some info via Wikipedia