The game reached an impressive milestone in a single weekend.

On Friday, video game publisher Electronic Arts released a free trial version of their new multiplayer action game, Knockout City, developed by Velan Studios. Knockout City is an arena-style 3-on-3 action game, though unlike many multiplayer arena games, players fight not with guns, but with dodgeballs. Teams of three pick up dodgeballs from around the arena and attempt to peg the members of the other team. What sounds like a simple premise has given rise to a surprisingly competitive meta-game of dodging, catching, baiting, and other tactics, which is probably why the opening weekend was so successful.

In just the few days since the free preview of Knockout City went live, the game has already accrued a playerbase of over 2 million users. This is comprised of players from across multiple different platforms, including Nintendo Switch, PlayStation 4, Xbox One (as well as PlayStation 5 and Xbox Series X/S through backwards compatibility), and PC via Steam, Epic Games, and Origin. With both cross-platform play and cross-progression, players can start the game on any platform, and maintain their progress across all other platforms.

There is, however, a bit of a question mark on the game’s initial success: as mentioned, this initial free launch is only a trial as part of the “Block Party” event. Once the trial ends on May 31, the game will no longer be free, retailing instead for $19.99. Some users are unsure whether or not they will continue playing the game once it is no longer free, especially since there are already monetization elements built in. Players can buy in-game currency to purchase cosmetic items, a common staple of free-to-play multiplayer games like Fortnite or Fall Guys.

Still, if EA is fortunate, players will be sucked in enough by the game’s mechanics to pay the entry fee when the time comes. Ratings have been very positive on social media platforms like Twitter, as well as the Steam user reviews, so Knockout City still very much has a shot to be the next big thing.