(BBC) – But unlike other games, America's Army is truly a product of the US military. The Army first released the game a few years ago as a recruiting tool.
But, at the recent Serious Games Summit in Washington, DC, the Army showed off a new use for its computer game - training soldiers for combat.
America's Army now has six million registered users, and scores of fansites, worldwide. That is not just because the Army gives the game away online for free.