Injustice 2 is a 2017 based upon the . It is developed by and published by . It is the sequel to 2013's . The game was initially released in May 2017 for the and ; a version was released later in November 2017. An expanded version of the game, titled Injustice 2: Legendary Edition, was released in March 2018 for the PlayStation 4, Xbox One, and Microsoft Windows. Similar to the previous installment, a companion was released for and devices. A of the same name, written by , was also released beginning in April 2017.
The core gameplay remains similar to its predecessor, albeit with minor adjustments to returning game mechanics. Injustice 2 introduces a new feature called the Gear System, a -dropping system that rewards players with costume pieces and equipment that can be used to customize characters' appearances and modify their abilities and stats. According to developers, the idea for implementing a -style progression system into a fighting game had existed since before the fall of , the original publisher for the series. Director also sought to incorporate gameplay mechanics used by multiplayer , such as personalization, character creation, loot, and leveling up, into the fighting game genre, which led to the development of the Gear System.
Injustice 2's storyline centers around Batman and his insurgency's attempt to restore society after the fall of Superman's Regime; however, the arrivals of the newly formed supervillain group "" and the alien force Batman to consider freeing the imprisoned Superman to help combat the threats. The game received positive reviews from critics, who praised its story, presentation, improved gameplay mechanics, abundance of in-game content, and character customization options, while criticizing its random loot and systems.
