Portal 2 has sold in excess of three million copies, developer Valve has announced.
According to Joystiq, studio president Gabe Newell made the announcement at the Games For Change event in New York earlier today.
He didn't mention whether that number takes into account Steam sales as well as PlayStation 3 and Xbox 360, but he'd certainly have access to that data.
An impressive figure, but it's still got a way to go before it overhauls the original, which has sold around four million units on PlayStation 3 and Xbox 360 alone.
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