Vault 51

Vault 51 is a Vault-Tec vault located in the Forest region of Appalachia in 2102.

Background
As with the other vaults, Vault 51 was sealed shut during the Great War in 2077. Twenty-five years later in 2102, the vault remains sealed.

Vault 51 contained a ZAX unit that turned on the vault's overseer Reuben Gill. The overseer eventually escaped his vault with the goal of finding help from the Vault 76 residents to shut down the ZAX. However, he died before completing that mission.

Vault 51's experiment tested both tribalism and the ZAX unit turning the vault dwellers against each other.

Occupants
There were 52 listed original occupants, which is the same number of maximum players allowed in Nuclear Winter mode:

Notable loot

 * Harold Clark - To the Members of the Board, pt.1 - Holotape, on the theater, behind the curtain of the stage, at the left on top of a metal box.
 * Clayton Ward - 20780415
 * Harold Clark - To the Members of the Board, pt.2 - Holotape, on the floor of a bathroom.
 * Elizabeth Chambers - 20771019 - Holotape, on the bar in the lounge room.
 * Joel & Elizabeth Chambers - 20780623 - Holotape, can be found on a bench in the garden area.
 * Joel & Elizabeth Chambers - 20780803 - Holotape, on a table on the balcony overlooking the band, behind the Overseer rank 30 grid.
 * Helen Marks & Reuben Gill - 20780803 - Holotape, on a push cart in the medical room.
 * Sgt. Baker - 20771013 - Holotape, on the bar in the overseer's office.
 * Sgt. Baker - 20771120
 * Sgt. Baker - 20780727
 * Sgt. Baker - 20780806
 * Reuben Gill - 20840520 - Holotape, on a desk near a terminal in the security room.
 * Reuben Gill - 20940303 - Holotape, next to a TV in the overseer's bedroom.
 * Reuben Gill - 21021023 - Holotape, on a bureau in a room to the northwest.
 * Reuben Gill to whoever finds this vault - Holotape, next to a terminal at the entrance.

Appearances
Vault 51 appears only in Fallout 76.