Call of Duty 2 is a first-person shooter video game and sequel to the critically acclaimed game, Call of Duty, also developed by Infinity Ward. Call of Duty 2 had contributions from Pi Studios, and was published by Activision on October 25, 2005 for Windows and November 22, 2005 for the Xbox 360. Call of Duty 2 takes place during World War II and features three campaigns where the player can be a soldier for the Red Army, the British Army, or the United States Army. Since October 13, 2006, the game has also been available to buy on Valve's content delivery platform, Steam. This comes after an agreement with its publisher, Activision.
Call of Duty 2 was the highest selling Xbox 360 launch title, selling 250,000 units in its first week of availability.Call of Duty 2 also was attributed to the large number of Xbox 360s sold, with 77% of people buying an Xbox 360 buying Call of Duty 2. To date, the game has sold over 1.4 million units on the console.