Gears of War 3 is a third-person shooter video game developed by Epic Games and published by Microsoft Studios exclusively for the Xbox 360. Originally due for release in April 2011, the game was delayed and eventually released on September 20, 2011. Gears of War 3 made over one million pre-orders making it one of the most anticipated games of 2011. It is the third installment of the Gears of War series. The story was written by science fiction author Karen Traviss.