Portal 2 sales have reached 4 million units worldwide, Valve‘s David Sawyer has confirmed during an interview with Neogamr (via Game Informer).
In June last year, three months after its April 19, 2011 launch, the game had already sold 3 million units excluding Steam sales. Sawyer did not say whether the new number includes Steam units.
Neogamr also asked Sawyer whether the upcoming PC/Mac puzzle editor would be made availabe to PlayStation 3 and Xbox 360 owners, but those questions “went unanswered,” according to the site.