“Fallout Shelter,” the free-to-play mobile strategy game set in the post-apocalyptic Fallout universe, is finally available on Android today.

Bethesda, the company behind the mega-popular Fallout franchise, first released the game in June for iOS devices. Since then, "Fallout Shelter" has been the most downloaded app in the Apple App Store in more than 20 countries, even surpassing Candy Crush Saga’s gross revenue in the United States. The game revolves around "vaults," underground bunkers that players use to house survivors of the nuclear apocalypse. Bethesda boasted that iOS players opened the app 70 million times a day in the week of its initial relase.

Today’s release includes updates that both Android and iOS users can experience, including Deathclaw invasions and Molerat infestations that will threaten players’ shelters.

falloutshelter_featuredbanner Fallout Shelter is a simple base building/defense game, but its connection to the highly anticipated Fallout 4 has fans eagerly playing and spending money on microtransactions. Photo: Bethesda

Android users can download Fallout Shelter in the Google Play Store here, as long as their devices are running at least 4.1 Jelly Bean.

The game already has nearly 25,000 ratings on the Google Play Store, with many players expressing their anticipation for Bethesda’s upcoming console game, Fallout 4, which will be available for PS4, Xbox One, and PC on November 10.