Sony just announced that Horizon Zero Dawn has sold through 7.6 million units worldwide.
Horizon Zero Dawn launched last year on PS4 and it has sold through 7.6 million units worldwide since then. This makes it the most successful first party IP launch on PS4. Hermen Hulst, Managing Director and Co-Founder, Guerrilla commented on the success:
“We had huge ambition for Horizon Zero Dawn and as we approached the launch we knew people were excited, but to see sales of this volume is truly mind blowing. Since launch, millions of players have joined Aloy on a quest to discover the secrets of the old ones. We hope they enjoy playing Horizon Zero Dawn as much as we enjoyed making it.”
Source: God is Geek