Marvel Heroes, Gazillion Entertainment’s free-to-play action-RPG featuring a cast of Marvel’s superheroes (and the occasional villain), is shutting down. A representative from parent company Disney confirmed the game’s closure to Polygon in an email.

“We regret to inform our Marvel Heroes fans that we have ended our relationship with Gazillion Entertainment, and that the Marvel Heroes games will be shut down,” a statement from Disney reads. “We would like to sincerely thank the players who joined the Marvel Heroes community, and will provide any further updates as they become available.”

The news was first reported by Kotaku.

Marvel Heroes was originally released in 2013 on PC. The game was later re-released under the names Marvel Heroes 2015, Marvel Heroes 2016 and Marvel Heroes Omega, the game’s current incarnation. A version of Marvel Heroes Omega was released for PlayStation 4 and Xbox One earlier this year.

Since mid-October, after adding Loki to the game, the developer of Marvel Heroes went quiet on its social media channels, leading fans to ponder the state and future of the game.

Marvel Heroes, which shared similarities with the Diablo series, was originally overseen by ex-Blizzard North president David Brevik. He left Gazillion Entertainment in 2016.

It’s not clear exactly when Marvel Heroes will be closing down. We’ve followed up with Disney and Marvel for more details.