Batman: Arkham Knight is an action-adventure video game developed by Rocksteady Studios and published by Warner Bros. Interactive Entertainment for the PlayStation 4 and Xbox One video game consoles, and Microsoft Windows. Based on the DC Comics superhero Batman, it is the successor to Warner Bros. Games Montréal's 2013 video game Batman: Arkham Origins, and the fourth main installment in the Batman: Arkham series. Arkham Knight was released worldwide on June 23, 2015. More: en.wikipedia.org.