MultiVersus, Warner Bros. Games’ free-to-play fighting game starring characters from many WB universes, launched in open beta in the Americas, Europe, Australia, and New Zealand on Tuesday. The game is available on PS4, PS5, Xbox One, Xbox Series X / S, and PC, and it has crossplay and cross-progression across all platforms.

MultiVersus is a 2D brawler where your goal is to rack up damage on your opponents and hit them off-screen. Up to four players can play at once, including in free-for-all matches and two-on-two team battles. If you’ve played Super Smash Bros., then the general mayhem of the fights should feel familiar. You can get an idea of how it all works in this gameplay trailer.

But also similar to Smash Bros., part of the fun of MultiVersus is the chance to pit characters from different fictional worlds against each other. Ever wondered who would win in a fight between Bugs Bunny, Batman, Arya Stark, and... LeBron James? MultiVersus lets you settle that score. You can check out the full roster here, and WB Games will continue to add new characters “in the months ahead.” (Two confirmed additions are Rick and Morty from Rick and Morty.)

Though MultiVersus will be free to play when it officially launches, you can already buy an in-game currency called gleamium to use on things like new characters and taunts. WB Games is also selling three levels of Founders Packs that come with escalating amounts of “character tickets,” gleamium, and other digital bonuses.

Technically, the open beta went live at 12PM ET, but there have been some issues — while first writing this article, I wasn’t able to get past the title screen at all — and the developers had to put in the game in maintenance mode. At about 2:30PM ET, MultiVersus director said that the servers are up and that the team is “rolling players in over time,” so if you haven’t been able to get into the game, you might be able to soon. (I was able to complete the tutorial and a match without any problems while writing this update.)

If you want to check out MultiVersus, you can download it for PlayStation, Xbox, and Steam.

Update July 26th, 5:26PM ET: The MultiVersus team is adding players back on a rolling basis.