http://www.gameinformer.com/b/news/archive/2015/04/06/tomb-raider-reboot-marks-8-5-million-sales-claiming-franchise-record.aspx
Square Enix has announced that the Tomb Raider reboot originally released in 2013 has claimed a third franchise record. The title already sold more on its first day and in its first month than any other game in the series. Now it owns the top sales spot overall, too.
This morning, the publisher shared that 8.5 million copies of the reboot have been sold across all five of the platforms it was released on. The title originally launched in 2013 on Xbox 360, PlayStation 3, and PC. A “definitive edition” arrived on Xbox One and PlayStation 4 in early 2014.