The biggest new feature for the game was the introduction of achievements, which can be obtained through completing the requirements for the achievement. The game was also made available for Xbox One on February 7, 2017, with cross-platform compatibility between Windows 10 and Xbox One. The game was made available for PC on July 14, 2016, and at first required the launcher to play. Mister Handy can collect resources, be sent into the wasteland to collect loot, and serve as a defender of the vault against creatures and disasters, including all new deathclaw and mole rat infestations. It featured new game updates, including the Mister Handy robot as an all new premium reward. It was announced at QuakeCon 2015 that the Android version would be released on August 13, 2015.
It is the seventh overall game in the Fallout series, although the canonicity of the game has not been stated by Bethesda. The game allows the player to create their own vault and thereby become an overseer of its inhabitants. The game was released on the iOS App Store the same day, after the conference ended. Fallout Shelter is a free-to-play installment in the Fallout series for iOS, Android, Xbox One, PS4, Nintendo Switch, Microsoft Windows, and Tesla Arcade, which was announced at Bethesda's E3 2015 press conference on June 14, 2015.