Batman: Arkham Knight trailer. br Shop CGR t-shirts and mugs! br br Classic Game Room’s CGR Trailers presents the announcement trailer for BATMAN: ARKHAM KNIGHT from Rocksteady Studios and Warner Bros. Interactive Entertainment. The Arkham series concludes with this action-adventure title for the PC, PlayStation 4 and Xbox One platforms. The release is scheduled for October 14, 2014. This is the PEGI version of the trailer.