Gears Of War 3 passes three million sales

Gears Of War 3 sold more than three million copies worldwide in its first week on sale, publisher Microsoft has announced.

The game has already grossed more than any other release this year, and the series has become the first Xbox 360 exclusive franchise to gross more than a billion dollars.

Microsoft VP Phil Spencer said: "Gears Of War was the first killer app for Xbox 360, and the series has continued to contribute directly to the overall success of the platform ever since.

"Gears Of War 3 kicked off the biggest Christmas period in Xbox history, setting the standard for the kind of amazing, action-packed experiences gamers should expect on Xbox 360 this year."