Fallout Shelter is a free-to-play simulation video game developed by Bethesda Game Studios, with assistance by Behaviour Interactive, and published by Bethesda Softworks. Part of the "Fallout" series, it was released worldwide for iOS devices in June 2015, for Android devices in August 2015, for Microsoft Windows in July 2016, Xbox One in February 2017, and PlayStation 4 and Nintendo Switch in June 2018. The game is also available on Tesla vehicles. The game tasks the player with building and effectively managing their own Vault, a fallout shelter.