Fallout: Ranking Every Vault From Least To Most Horrifying
16. Vault 29 - Housed The Children Of Rich Parents
Only mentioned in Fallout 76 and meant to be released as part of an update that never happened, Vault 29 sounds like a nice proposition.
It was designed to be a Fallout shelter for the kids of rich parents, but in reality, the Vault was purposefully designed to study what would happen if it was only populated by children.
No member of this vault was to be over the age of 16; their parents were redirected to other Vaults when the bombs dropped or the adults allowed inside had bad health conditions that meant they'd die very quickly.
In the original plan, the children of the Vault were to be looked after by robotic helpers who would bring them to maturity. In reality, Diana (a human brain connected to a computer - don't ask) hacked into the Vault and closely followed the upbringing of all the children.
She secretly also sent out a worker robot every year out of the Vault, pretending to be checking if the environment was safe for habitation. In reality, she was creating a settlement for the children called Twin Mothers, with the aim to release them to it when it was complete.
By 2253, the Vault was emptied, the Twin Mothers settlement was established, and Diana is considered a God and the Vault is considered a holy place by its original dwellers.
Quite a sweet little story for Fallout that, isn't it?