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Gametitle-FO76 NW
Gametitle-FO76 NW

ZAX is a supercomputer operating in Vault 51 in 2102 in the Fallout 76 add-on Nuclear Winter.


The ZAX unit was the evil mastermind behind the Vault 51 overseer testing. After trying and failing to select an overseer through various other means, he came up with the idea of a Battle Royale to ensure the overseer truly is the dominant resident. After testing was complete and only one resident remained, he turned on Vault 51's overseer Reuben Gill, who 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 his mission.

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Essential: Icon cross
Companion: Icon cross
Perk: Icon cross
Merchant: Icon cross
Doctor: Icon cross
Rents bed/room: Icon cross
Starts quests: Icon cross
Involved in quests: Icon cross


ZAX appears only in the Fallout 76 add-on Nuclear Winter.


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