Combat Arms
Combat Arms is a free-to-play multiplayer first-person shooter. Combat Arms is entirely a multiplayer game that contains 5 game modes and 11 maps.
System requirements: 1 GHz CPU, 256MB RAM, GeForce 2 MX. http://combatarms.nexon.net/ , http://combatarms.nexoneu.com/
Wolfenstein: Enemy Territory
Wolfenstein: Enemy Territory is a free online FPS set in World War II. The game includes 5 character classes and hundreds of downloadable custom maps.
System requirements: 600 MHz CPU, 128MB RAM, 32MB OpenGL video card. http://www.splashdamage.com/wolfet
Operation 7
Operation 7 is a free FPS where you can build your own weapons.
System requirements: 1.7 GHz CPU, 512MB RAM, GeForce FX 5200 / ATI 9000. http://op7.netgame.com/ , http://operation7.fiaa.eu/
America’s Army: Special Forces
America’s Army is a free team-based tactical first-person shooter developed by the United States Army.
System requirements: 2.4 GHz CPU, 512MB RAM, video card with 128MB memory. http://www.americasarmy.com/
BlackShot
BlackShot is a free-to-play militaristic first-person shooter which takes place in various environments.
System requirements: 2.0 GHz Pentium 4, 512MB RAM, GeForce FX 5700 / Radeon 9550. http://www.blackshotonline.com/ , http://playblackshot.com/
War Rock
War Rock is a tactical, modern multiplayer first-person shooter. War Rock has three play modes that differ in size of the map, the number of respawns allowed and the availability of vehicles.
System requirements: 800 MHz CPU, 512MB RAM, Radeon 8500LE / GeForce MX400. http://www.warrock.net/
Crossfire
Crossfire is a free military FPS published by Suba Games. Crossfire features many maps, 4 game modes and 30+ weapons.
System requirements: 1.5 GHz Pentium 4, 512MB RAM, GeForce 5600. http://crossfire.subagames.com/
Soldier Front
Soldier Front is an action-packed military first-person shooter. Soldier Front offers realistic gameplay and character growth system.
System requirements: 833 MHz CPU, 256MB RAM, GeForce 3 64MB. http://sfront.ijji.com/
Sudden Attack
Sudden Attack is a free FPS developed by the South Korean company, GameHi.
System requirements: 800 MHz CPU, 256MB RAM, 32MB video card. http://suddenattack.asiasoftsea.net/
Urban Terror
Urban Terror is a realism based multiplayer shooter that can be played as a stand-alone game or as a Quake III Arena mod.
System requirements: 1.2 GHz CPU, 256MB RAM, video card with 128MB RAM. http://www.urbanterror.net/
AssaultCube
AssaultCube is a free fast-paced FPS based on Cube engine.
System requirements: 500 MHz CPU, 128MB RAM, nVidia GeForce 256 (or ATI equivalent). http://assault.cubers.net/
True Combat: Elite
True Combat: Elite is a team-based modern world mod for free and popular WW2 shooter, Enemy Territory.
System requirements: 800 MHz CPU, 320MB RAM, 128MB video card. http://www.tcelite.net/
Dispatch of army
Dispatch of Army is a free-to-play MMOFPS set in the 1960s. The game features 10 different characters, 15+ maps and 3 game modes
System requirements: 800 MHz CPU, 128MB RAM, GeForce 2. http://doa.cube-asia.com/
Kuma\War 2
Kuma\War 2 is a free tactical first-person shooter based on the Source engine.
System requirements: 2.4 GHz CPU, 512MB RAM, 128MB DirectX 9 compatible video card. http://www.kumagames.com/
Postal 2: MP
This is the free multiplayer version of Postal 2: Share the Pain.
System requirements: 733 MHz CPU, 128MB RAM, 32MB GeForce 2. Download
Digital Paint: Paintball 2
Digital Paint: Paintball 2 is a fast-paced free FPS based on Quake 2 engine.
System requirements: unspecified. http://digitalpaint.planetquake.gamespy.com/
Smokin’ Guns
Smokin’ Guns is a free stand-alone Wild West conversion of Quake III.
System requirements: 1 GHz CPU, 256MB RAM, 64MB OpenGL Video Card. http://www.smokin-guns.net/
The Kill Point
The Kill Point is a free FPS developed by Kuma Reality Games.
System requirements: 2.4 GHz CPU, 512MB RAM, 128MB DirectX 9 compatible video card. http://www.kumagames.com/
D-Day Normandy
D-Day Normandy is a free WW2 first-person shooter based on the Quake 2 engine.
System requirements: unknown. http://www.ddaydev.com/
Huge List of Free FPS Games