Mass Effect 2 ships 2 million

Mass Effect 2 launched for the Xbox 360 and PC in North America on Tuesday, and the game's European rollout occurred today. Even in that short span of time, retailer interest has been strong, as Electronics Arts announced today that it has shipped more than 2 million copies of BioWare's sci-fi role-playing shooter worldwide.

Mass Effect 2 resumes the solar-system-hopping adventure of Commander Shepard, which began with the events in the acclaimed original Mass Effect. However, this time out, Shepard finds himself indebted to the pro-human Cerberus Corporation, though his focus remains on ridding the galaxy of the mysterious Reaper threat.

BioWare has bolstered Mass Effect 2's on-disc offerings with a batch of downloadable content through its in-game Cerberus Network. Free for those who purchased the Xbox 360 and PC game new, the DLC currently includes a new crew member who can be recruited as well as a bonus mission. Down the road, BioWare has said that it will introduce new weapons like the M-22 Eviscerator Shotgun as well as the Hammerhead hover tank.

For more on Mass Effect 2, check out GameSpot's spoiler-rich interview with project director Corey Hudson as well as additional coverage.