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Fallout Wiki

Vault 0 (also known as the Calculator's lair) is a location in Fallout Tactics that can be reached from Cheyenne Mountain.

Background[]

Unlike most Vaults involved in the Vault experiment, Vault 0 was not an experiment in human behavior. It was constructed by expanding and reinforcing the Cheyenne Mountain Complex in Colorado and was by far the largest of the underground Vaults (by volume). It was intended to be the nucleus of the Vault network.

Vault 0 was a place where the geniuses of the pre-War United States could be kept in cryogenic stasis; some would have their brains extracted and preserved in tanks for the duration of their "residence" in this Vault, while other residents entered cryostatis. Residents were hooked up to one central supercomputer called the Calculator, which was supposed to function in collaboration with the brains of these pre-War geniuses to design and nurture an ideal human society in the post-War U.S. by educating the survivors and residents.

Due to budget cutbacks by the Department of Defense (as a result of a false sense of safety, partially due to the cry wolf effect of repeated drills), several important backup systems were not included in the neuro-link systems.[1] For the geniuses plugged in, most suffered severe brain damage, dementia and cognitive deficits from a combination of age, equipment malfunction and prolonged radiation exposure (not mutation). This caused the Calculator to become corrupted over time, and instead of releasing the robots to make the wasteland safe for humanity, the Calculator commenced the so-called "pacification protocol," ordering its robots to exterminate all life.

Events of Fallout Tactics[]

Vault 0 thus becomes the endgame area of Fallout Tactics. The Warrior's team and Dagger Squad, an elite force of Brotherhood of Steel paladins, need to enter the Vault to stop the rogue Calculator.

The Vault power nodes were rendered offline after the explosion, so the Warrior had to activate them manually, battling robots and encountering remnants of Vault 0's citizens. Ultimately, the Warrior activates the power nodes and proceeds to the lift, entering the Calculator's main lair.

Related missions[]

  • Vault 0 (mission): The mission in Vault 0 is to activate three power nodes throughout the Vault in order to reach the Calculator.

Appearances[]

Vault 0 appears only in Fallout Tactics.

Behind the scenes[]

  • There is a real-world bunker complex underneath Cheyenne Mountain in Colorado Springs, Colorado. The Cheyenne Mountain Complex was built in the 1960s as the main center for the United States Space Command and NORAD, and is currently used by the United States Space Force.
  • The initial conception of a Vault 0 stemmed from a conversation between developers Timothy Cain and Leonard Boyarsky, when Boyarsky asked Cain about how many digits would a Vault suit be allowed to have. Cain clarified that Vaults could only be numbered 0-999 which led Boyarsky to ask about Vault 0 and Cain to spontaneously come up with the idea of Vault 0 serving as a "control Vault" that would control all of the other Vaults. This led to further conversations between the two about what other experiments were being conducted in other Vaults, and the idea that Vault 0 was used by the Enclave to gather data from them, which would then be used to create a multi-generational starship bringing humanity to other planets to escape the nuclear war. Boyarsky and Cain created notes that they tried to integrate into Fallout 2.[2] References to the greater plan for the Vaults ended up in the finished game, and the game ended up referencing an Enclave Vault-Research Control location which seemed to hint at the role that Cain and Boyarsky envisioned. Vault 0 itself would not be explicitly referenced or shown until the release of Fallout Tactics.

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