If you bought Mass Effect 2 and you like being on the winning "team" when it comes to game trends, high five. According to DFC Intelligence, BioWare's latest spacefaring adventure sold an estimated 1.1 million copies (of the Xbox 360 version) in January -- six times the sales of any other game. Estimating game sales based on GamerDNA activity, DFC also believes that there was a significant uptick in play of Mass Effect as well, "likely supported by the ability to transfer a save file from a completed Mass Effect game into Mass Effect 2 where several key player decisions in the first game could be carried over into the second game."

The other leading Xbox 360 sellers in DFC's estimate include Darksiders (150,000), Bayonetta (170,000) and Army of Two: The 40th Day (175,000) -- with Dark Void somewhat of a surprise bomb (22,000).