StarCraft II is still on a roll, as the recently released expansion Heart of the Swarm racks up over 1.1 million sales worldwide in just 48 hours. You know, give or take.
That figure includes both digital and retail copies, though Blizzard didn't provide a more detailed breakdown of the sales numbers, meaning we don't know how many were digital and how many were hard copies.
Interestingly, StarCraft II: Wings of Liberty outsold the Heart of the Swarm expansion in the same amount of time, back in 2010, by hitting over 1.5 million in two days. Still, it just goes to show that Blizzard is still in the game, no matter how many complaints we hear these days.
StarCraft II: Heart of the Swarm marks the first of several expansions for Wings of Liberty. The Protoss-centric Legacy of the Void is currently in development, with no release date yet.