AssaultCube Reloaded is a free-and-open-source first-person-shooter aimed at improving its predecessor, AssaultCube. This game combines the best of all worlds. Realism from Battlefield, anti-cheat from the Quake engine, perks from Call of Duty, and fast-paced gameplay with a low system footprint from AssaultCube.
The latest release for Linux. This will be updated when necessary.