Blizzard's follow up to their 1998 RTS hit Starcraft II: Wings of Liberty landed on PC and MAC on July 27 and went on to reach sales figures of more than 1.5 million in just 48 hours.
It may seem like a tiny number compared to Modern Warfare 2's five million sales in a day, but for a title which isn't appearing on consoles the figures are pretty phenomenal.
Fans queued up for a special midnight openings to guarantee they were some of the first to get their hands on the RTS.
Mike Morhaime, CEO of Blizzard Entertainment, said: "We're pleased that so many people have already picked up a copy of the game, and we look forward to welcoming even more players to Battle.net."
Starcraft II: Wings of Liberty is available now on PC and MAC, priced at €50.