Eurogamer: Stop the presses! Mass Effect 3 is the UK's new all-formats chart number one. But exactly how well did it do? Chart-Track doesn't publicly reveal sales figures, but mentioned Mass Effect 3 was comfortably the biggest game launch of the year so far. It has already outsold the previous four number ones (SSX, Uncharted: Golden Abyss, UFC3 and Kingdoms of Amalur: Reckoning).