Injustice 2 is the sequel to Injustice: Gods Among Us, and it has some new additions as well as a great story.
For the story mode, set five years after the events of Injustice: Gods Among Us, Bruce Wayne, a.k.a. Batman, are trying to rebuild the world after Superman's Regime is defeated, however, The Society, a group of villains led by Gorilla Grodd, has emerged for one goal: world domination. Batman has to send in heroes Black Canary and Harley Quinn, alongside Green Arrow, who has come from the other universe, to stop them. However, Supergirl is on Earth, having been rescued by Black Adam, and along with Wonder Woman, they plan to bust Superman out of his containment cell and bring the Regime back to power, all while Braniac, the mastermind of the Society, makes plans of his own.
One of the new features added to Injustice 2 is the Gear System, which allows you to customize characters using gear like masks, weapons, glove, etc, which can be gotten by either playing the game or buying Mother Boxes using in-game currency. There is a microtransaction side with Source Crystals, but that is mostly used to buy premiere skins and color palettes that can be obtained by normal gameplay (at least they are just for cosmetics and not for gameplay advantage).
Also, the roster in the game is good, as it is a mix of characters old and new. Superman and Batman do return, as does a select few characters from the first game (with Nightwing returning as Robin), as well as new characters like Gorilla Grodd, Poison Ivy, Swamp Thing, Blue Beetle, and Supergirl. Braniac serves as the final boss of the Battle Simulator mode (the game's version of Arcade Ladder) and the true antagonist of Story Mode. Also, there are the DLC characters, with the first one, Darkseid, being first as the timed pre-order exclusive, and being followed by nine more characters, who range from DC characters like Red Hood, Starfire, and Black Manta, to MK characters Sub-Zero and Raiden, to guest fighters Hellboy and the Teenage Mutant Ninja Turtles (the latter sharing the same slot, as the turtle you play as is determined by the weapon you equip when changing gear). This makes for a good roster, and some characters even have premiere skins that allow them to become another character (hate Raiden being in Injustice? He has a premiere skin that turns him into Black Lightning).
As for modes, NetherRealm brings Multiverse Mode, which plays like the Living Towers in MKX, as it has events that change at certain times. This time, it has multiple events, each one having different conditions needed to play (like playing as a certain character or having a certain level for a character). However, success rewards you with Mother Boxes depending on how big a score you got, which can be opened to get gear, with some Multiverse events even having exclusive gear.
As for gameplay, it remains literally the same, the only difference is Story Mode got rid of the mini-games and instead, has chapters where certain fights allow you to choose between two characters. Injustice 2 is a good game, and deserves checking out.
