Unreal is a series of first-person shooter video games developed by Epic Games.




Call of Duty is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Unreal Tournament, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Call of Duty and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Call of Duty are AssaultCube, Splitgate, Cube 2: Sauerbraten and Day of Defeat: Source.
Unreal is a series of first-person shooter video games developed by Epic Games.




AssaultCube is a free, multiplayer, first-person shooter game, based on the CUBE engine.
Taking place in realistic environments, with fast, arcade gameplay, it's addictive and fun!



A free-to-play, fast-paced multiplayer shooter that features player-controlled portals. It takes the FPS genre to a new dimension with portal mechanics, delivering high-flying, multi-dimensional combat. IGN describes Splitgate as “Halo meets Portal".




Cube 2: Sauerbraten is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.

Day of Defeat: Source features multiplayer, team-based gameplay set in the WWII European theatre of operations. Players choose a role and tackle goal-oriented missions based on historical operations.
Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.



Experience authentic First World War action with 64 player battles of maneuver on the Eastern Front. Grab your rifle, ready your sabre and keep your gas mask close as you prepare to play a part in one of the most significant conflicts in history!.



Wolf Team is a fast paced 3D MMOFPS that features the ability for players to transform between playing as a Human or as a Werewolf. Humans have an assortment of weapons available at their disposal giving them an advantage at a distance.
CSPromod aims to incorporate the best of CS 1.6 and CS:Source in one, feature-packed version. With 1.6-style gameplay and Source graphics, we hope and strive to re-unite the CS community.
This is a standalone game!

FPS set in a realistic World War One setting, the game which started the 1914-1918 WW1 Game series. The merciless trench warfare offers a unique battlefield experience, immersing you and your squad into intense battles of attack and defense.
TrueCombat: Elite is a FREE modification for the Enemy Territory game (also free). It is a realistic modern day FPS featuring state of the art models and textures.



Ballistic Overkill is a fast paced PvP shooter. Easy pick up and play, no complicated setups or rules: it’s kill or be killed! Select a class with unique skills and arsenal to play. No wimpy classes. In Ballistic, everyone is a killer!.


Unreal is more of an arena shooter with a focus on map/powerup control. As apposed to Call of Duty which is based around lone wolf "rambo like" combat with an emphasis on player-controlled weapon sets and customization.