Learn about Batman: Arkham Knight's PS4 content

Details of Batman: Arkham Knight's PS4 exclusive content has been revealed by Sony.

The PS4 version will come with the Scarecrow Nightmare Pack, adding a bonus level to the adventure title.

"Gotham falls victim to Scarecrow's fear toxin, transforming the famous city into a twisted, hellish nightmare in the Batman: Arkham Knight Scarecrow Nightmare Pack," reads the description.

"Tear through the city in the all-new batmobile and face off against a towering vision of Scarecrow and his undead army as they spread terror on the streets, available exclusively on Playstation 4."

Batman: Arkham Knight launches early 2015, and an official release date is rumoured to be 24 February.