Rocksteady's Batman games have evolved beyond their humble origins in Batman: Arkham Asylum. Where Batman was once confined to this single location, later games in the Arkham series have granted him greater room to glide through. In Batman: Arkham Knight, the entire city of Gotham is under siege by a united rogues gallery--so where does Arkham itself fit into the story?"The word 'Arkham' has come to represent an aesthetic and a philosophy," says Arkham Knight's marketing director, Dax Ginn.