The first half of the Metal Gear Solid V duology, Ground Zeroes, will be available for the Xbox 360, Xbox One, PlayStation 3 and PlayStation 4 this Spring, but only the latter two platforms will have access to exclusive content, according to a tweet from series creator Hideo Kojima.
In the bottom left-hand corner of this image, there is a statement that says the game will have "exclusive content on PlayStation platforms". What exactly that content is and whether it will eventually come to other platforms is currently unknown.
Ground Zeroes will be available digitally on PS4 and Xbox One, and both physically and digitally on PS3 and Xbox 360 in Spring 2014 for $30 (£30 in the UK). A new trailer for the game will debut later today on Spike TV's PS4 All Access program.