Minecraft is an uber-successful game for Mojang, having now sold over 11 million units for the Windows PC and Mac platforms. The news comes directly from Minecraft's official website.
At the time of writing, Minecraft on the PC and Mac has been sold to 11,008,187 people, which is really just crazy. If you had told me 5 years ago that a game that looked, and played like this, would sell 11 million+ copies, I'd have laughed at you and continued to play COD4 (the last good COD). The website has a running counter, which continues updating as copies are sold.
Since typing the original number just a paragraph above, the game has sold 11,008,202 copies and is selling around 1 copy every couple of seconds. Kudos, Mojang!