Call of Duty 2 is a first-person shooter video game and 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.