Fallout Shelter is a free-to-play installment in the Fallout series for iOS and Android devices that was announced at Bethesda's E3 2015 press conference on June 14, 2015. The game was released on the iOS App Store the same day, after the conference ended. The game allows the player to create their own Vault and thereby become an Overseer of its inhabitants.
At QuakeCon 2015, it was announced the Android version would be released on August 13, 2015 . It features new game updates, including Mr. Handy as an all new premium reward. It can collect resources, be sent into the wasteland to collect loot, and serve as defender of your Vault against creatures and disasters, including all new deathclaw and mole rat infestations.