AssaultCube, formerly ActionCube, is a free first-person-shooter based on the game Cube. Set in a realistic looking environment, as far as that´s possible with this engine, while gameplay stays fast and arcade. This game is all about team oriented multiplayer fun.
Homepage
Category: Action/FPS
License: Open Source
Hardware Requirement: P3 800Mhz Processor • GFX
Singleplayer: No
Multiplayer: Yes
Demo: Free
Installation Guide: Ubuntu 64-bit Guide
Ubuntu Package: PlayDeb