MikeMcD

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The NPD Group's sales data for both December and the entirety of 2011 has been released today. Unsurprisingly, Call of Duty: Modern Warfare 3 was the best-selling game in both December and 2011.
Call of Duty is a sales monster, and it was a given that it would be the top game. NPD only tracks new physical retail sales in the United States, including PC game sales, so any games sold through Steam or used copies at GameStop are not included. 6.5 million units of the game were sold in the U.S. and U.K. in just one day, and it was only a few weeks before the game surpassed $1 billion in sales.

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