MultiVersus has been a huge hit so far, with millions of people checking out the free-to-play crossover fighting game. The biggest draw of MultiVersus is its impressively varied roster of fighters, pitting the likes of DC Comics superheroes like Batman and Superman against Game of Thrones' Arya Stark and Shaggy from Scooby-Doo. The MultiVersus roster will grow over time, as the developers know new characters will be the main way to keep fans coming back.