Upcoming action game Batman: Arkham Knight will have a series of content "exclusive" to the PlayStation 4 version of the game. As it turns out, this content--comprising extra missions and skins--will come to other platforms later, according to an Amazon advertisement for the extras.

A line from the ad reads: "Bonus content exclusive until at least fall 2015."

This content will be available to PS4 players when Arkham Knight launches on June 23. However, it's unclear when exactly it will launch and what it will cost when it finally arrives for Xbox One and PC.

The exclusive content is not the first example of Sony and Warner Bros. working together to give Arkham Knight PlayStation fans special treatment. Sony will also release a two special Arkham Knight-branded PS4 consoles for the game's launch this summer.

Earlier today, we learned that Arkham Knight will output in native 1080p on PS4.

This isn't the first time Sony has secured a time-exclusive DLC arrangement for a major multiplatform game. The company did the same thing with Activision's Destiny, offering extra content first on PlayStation platforms. This content was later released for Xbox.

Via: Videogamer