Vault-Tec engineers have worked around the clock on an interactive reproduction of Wasteland life for you to enjoy from the comfort of your own vault. Though the global atomic war of 2077 left the US all but destroyed, the residents of Vault 101 enjoy a life free from the constant stress of the outside world. Yet one fateful morning, you awake to find that your father has defied the Overseer and left the comfort and security afforded by Vault 101 for reasons unknown. Leaving the only home you've ever known, you emerge from the Vault into the harsh Wasteland sun to search for your father, and the truth. Every minute is a fight for survival against the terrors of the outside world – radiation, Super Mutants, and hostile mutated creatures.