The game takes place in West Virginia in 2102, 25 years after World War I and before any previous Fallout game. It's Vault 76, one of 17 control safes designed without a social experiment. The player character emerges after a Vault 76 Recovery Day celebration after being sent on a quest by the Warden.
In addition, a crafting system that allows players to build their own homes is an essential feature. The system is shared between allied players. The apartments are built using the mobile construction and assembly platform (C.A.M.P.).