Legends Free multiplayer first person shooter set in large outdoor landscapes where air superiority reigns.

Savage 2:A Tortured Soul A free first person strategic role play game

Nexuiz Mulitplayer deathmatch at it's finest based on ID Software's Quake 1 engine which was opened up for free

Tremulous Free first person shooter with strategy element

America's Army Free first person army simulator

Wolfenstein: Enemy Territory Free World War 2 Team Based First Person Shooter

WarRock A free online multiplayer modern tactical combat FPS

Alien Arena Free multiplayer first person shooter

World of Padman Free colourful first person shooter