MultiVersus is a 2022 free-to-play crossover fighting video game developed by Player First Games and published by Warner Bros. Interactive Entertainment. The game is a platform fighter, featuring characters from Warner Bros. Discovery franchises, and is available for Microsoft Windows, PlayStation 4, PlayStation 5, Xbox One and Xbox Series X|S.

Officially announced in November 2021 following online rumors and leaks, early access and open beta versions of the game released in July 2022.

MultiVersus is a platform fighter, with players battling on different stages and attempting to knock the opponent beyond the stage's boundary by dealing sufficient damage. While 1-vs-1 and free-for-all options are available, the game emphasizes battling in teams of two characters; most attacks in the game are designed with this in mind, including other players passively strengthening the move's effect.

MultiVersus features a perk system, which allows players to customize their characters with passive abilities that will also affect their partners in Teams. These include Signature Perks, which are exclusive to a respective character and directly affect their attributes and abilities. If players in the same team equip the same perks, those perks' effects are enhanced.