Steam.com offers a wide selection of online war games from many popular franchises, including Call of Duty, Arma and Counter Strike. These games range from turn-based strategy games to player-versus-player first-person shooters. The selection includes free-to-play games as well as full-price AAA titles.
The first-known war game was created in 1780 by the Duke of Brunswick's Master of Pages, which drew inspiration from chess. Sometime between 1803 and 1809, the Prussian general staff, seeking to learn from reenactments of previous battles, developed games with metal pieces. These kriegsspiel or "wargames," used dice to simulate random chance or less-than-ideal circumstances such as morale and weather.