PlayStation 4 exclusive Killzone: Shadow Fall has achieved sales of 2.1 million copies as of January 15th.
Sony Europe community manager Chris Owen revealed the news on Twitter:
Amazing! #PS4 exclusive title, KILLZONE™ SHADOW FALL, exceeded sales of over 2.1 million units as of January 15, 2014. @Killzone
— Chris Owen (@Envisager_) January 29, 2014
The numers are particularly impressive given that as of the end of last year, 4.2 million PlayStation 4 systems were sold meaning that Guerrilla's game has more of less been sold on one out of every two PS4s.
Killzone: Shadow Fall was released alongside the PS4 on November 15th. We gave the game a 7/10 rating in our review.