Nope. Even at an industry-dwarfing 80 million units, its closest competition being Super Mario Bros. from '85 on 40m, there's still something bigger. Much, much bigger.
Clocking in at 2 billion units sold, that's just under a third of the entire human population, is [url=http://www.edge-online.com/features/two-billion-downloads-were-just-getting-started-says-angry-birds-creator-rovio/]Angry Birds[/url].
Get mad, casual haters. It's actually a lot of fun.
On the same topic, BF3 is hiding away at the bottom of the top 30 of all time on 15m units. Beating MW3. So it looks like DICE and EA actually achieved that.
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Seems like the number includes every game in the franchise. Still, that's pretty impressive.