Batman Arkham City is delivered as Steam cd key after your purchase. Batman Arkham City activation and installation is done entirely on Steam. Internet connection is required. Batman: Arkham City builds upon the intense, atmospheric foundation of Batman: Arkham Asylum, sending players flying through the expansive Arkham City - five times larger than the game world in Batman: Arkham Asylum - the new maximum security "home" for all of Gotham City's thugs, gangsters and insane criminal masterminds. Buy Batman Arkham City, manage the city.