Alien Arena

Alien Arena (initially CodeRED: Alien Arena) is a free, stand-alone first-person shooter computer game. Begun by COR Entertainment in 2004, the game combines a 1950s-era sci-fi atmosphere with gameplay similar to the Quake, Doom, and Unreal Tournament series. Alien Arena focuses mainly on online multiplayer action, although it does contain single-player matches against bots. Alien Arena has been released for Microsoft Windows, OS X, Linux, and FreeBSD. While the game's content is proprietary fre…