Fallout fans who’ve been pining to play Bethesda’s strategy spinoff on Steam are getting their chance: Fallout Shelter has now been released on PC‘s biggest gaming platform.

The game tasks players to built their own vault, creating a functioning shelter for their dwellers who have escaped the wasteland of Fallout‘s post-apocalyptic world. You build improvements, level up survivors, and send your residents out on quests for rewards.

Fallout Shelter is free to download, with the option of buying extra items and resources in the Steam store. It’s not Shelter’s first PC release (Bethesda launched the game on its own client last year), but now players will get the chance to earn Steam achievements and take advantage of Steam’s cloud support.

Fallout Shelter is also getting an update today across all platforms. There are more than 30 new quests for players to send their dwellers on, and a limited-time Easter Quest that will reward you with an exclusive legendary pet, a free lunchbox, and other rewards.

Fallout Shelter was released for iOS and Android in 2015. Last month, it launched on Xbox One and Windows 10 as a Xbox Play Anywhere title, meaning you can download it on one platform but also access it (and any saved games) on another. It’s gained more than 75 million players worldwide, and with today’s Steam release, no doubt that number will just continue to climb.

Source: GameSpot