However, different characters use the same environmental objects in different ways. This feature allows for the characters to perform maneuvers involving objects within the stage. Though running on Unreal Engine 3, like Mortal Kombat, Injustice features a different control scheme including holding back to block rather than a block button as well as a dedicated button for interacting with the environments. While most of the heroes, and some villains, have joined Superman's cause, others have formed a resistance known as the Insurgency, led by that universe's Batman. In a plot involving parallel dimensions and shifting alliances, the game's storyline has various heroes and villains mysteriously transported into a near-future alternate universe where Superman has gone mad with power, establishing a new fascist regime known as One Earth, years after killing The Joker in cold blood, who previously destroyed Metropolis, along with Superman's love interest Lois Lane, in a nuclear blast. It is the second fighting game made by the team behind the Mortal Kombat franchise to feature characters from the DC Universe, the first being Mortal Kombat vs. Injustice is based on the DC Universe and features both heroes and villains from various DC Comics franchises, most notably Batman and Superman. Injustice: Gods Among Us Ultimate Edition, an updated version of the game which includes all available downloadable content, was released in November 2013 for PlayStation Vita and PlayStation 4 as well as all previous platforms. Injustice: Gods Among Us is a 2.5D fighting game developed by NetherRealm Studios and published by WB Games for Xbox 360, PlayStation 3, and Wii U on April 16th, 2013.