Batman: Arkham Knight and Mortal Kombat X ship 5 million copies each.

[KyleeStrutt]

"Other Hollywood studios have taken a stab at the videogame business, but none have stuck with it like Warner. After ranking No. 6 or 7 the past few years, the studio has shot to the top, thanks to major hits including “Batman: Arkham Knight” and fighting game “Mortal Kombat X,” which have each sold more than 5 million units globally. “Lego Jurassic World,” based on the movie from competitor Universal Pictures, has sold about 4 million copies."

Also LEGO Jurassic World at 4m.

http://www.wsj.com/articles/warner-loses-at-box-office-but-its-videogames-score-big-1444603877

Hope you have a WSJ account.