America’s Army is a tactical, multiplayer, FPS (first person shooter) owned by the United States Government and released as a global public relations initiative to help with U.S. Army recruitment. The first version, Recon, was released on 4th July 2002. The current version 2.8.2 was released on september 2007.
Edit: Latest Linux available version is 2.5
It’s the first well known computer game used for political aims. The game is used as a playable recruiting tool and critics have charged the game serves as a propaganda device. A counter on the homepage of the PC version shows over eight million registered accounts as of 2007. GameSpy tracked the game usage and reported an average of 4,500 players at any one time between 2002 and 2005.
Get the game here... http://www.americasarmy.com/
From: Gamesuy