Batman: Arkham is a series of action-adventure video games based on the DC Comics character Batman, developed by Rocksteady Studios and Warner Bros. Games Montréal, and published by Warner Bros. Interactive Entertainment. The first two Rocksteady games were written by veteran Batman writer Paul Dini and featured voice actors Kevin Conroy and Mark Hamill reprising their roles as Batman and Joker, respectively, from the DC Animated Universe (DCAU).