Call of Duty

Call of Duty is a video game based on the Quake III Arena engine (id Tech 3), and was released on October 29, 2003. The game was developed by Infinity Ward and published by Activision. The game simulates the infantry and combined arms warfare of World War II.^[4] An expansion pack, Call of Duty: United Offensive, was developed by Gray Matter Interactive with contributions from Pi Studios and produced by Activision. The game follows American paratroopers, British paratroopers and the Red Army. The Mac OS X version of the game was ported by Aspyr Media. In late 2004, the N-Gage version was developed by Nokia and published by Activision. Other versions were released for PC, including Collector's Edition (with soundtrack and strategy guide), Game of the Year Edition (includes game updates), and the Deluxe Edition (which contains the United Offensive expansion and soundtrack; in Europe the soundtrack was not included). On September 22, 2006, Call of Duty: War Chest was released for PC, collecting Call of Duty, United Offensive, and Call of Duty 2.Since November 12, 2007, Call of Duty and its sequels have been available for purchase via Valve's content delivery platform Steam.


Call of Duty 2

Call of Duty 2 is a first-person shooter video game, the sequel to Call of Duty. It was developed by Infinity Ward and published by Activision. The game is set during World War II and is experienced through the perspectives of soldiers in the Red Army, British Army and United States Army. It was released on October 25, 2005 for Microsoft Windows, November 15, 2005 for the Xbox 360, and June 13, 2006 for Mac OS X. Other versions were made for mobile phones, Pocket PCs, and smartphones. 

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