Alien Arena is a free online FPS first person shooter game that can be run from a portable USB drive. It takes a few of the best aspects featured in such popular games as Quake III and Unreal Tournament and then further combines them with unique and original ideas. Based on a retro style Alien theme, it is not only fun to play, but also contains that old school element that you just don't find in most modern deathmatch style games.
Nexuiz is another great free first person shooter game. As opposed to some other well known 3D first person shooters, this FPS game looks and plays great and has outstanding graphics. All without requiring a super fast graphics card or really expensive gaming system hardware. It is also portable game, meaning that it can be run directly from a USB flash drive or other removable device.
Warsow is a free first person shooter game. One of the best free portable, fast paced, multiplayer 3D (FPS) first person shooter games of all time. This popular shooter game features an old school first person Quake and Doom style of Gameplay. Much like Xonotic, this free FPS shooter game is set in a futuristic cartoonlike world where players compete against each other through game modes such as deathmatch, capture the flag, and clan arena.
