The player finds that four of these last survivors committed suicide out of guilt, while the fifth left to parts unknown. The remaining five residents, tired of the atrocities, refused to take another life at the risk of all dying together, only to discover that this is what the computer had wanted: by refusing to kill and showing themselves as 'shining examples of humanity,' the computer would have let the entire vault population live decades ago, making the years of blood, trauma, and death completely and utterly pointless. Fallout: New Vegas Powder Gangers not welcome: Powder Gangers not welcome.
Eventually, a resentful overseer's override caused the computer to randomly select a sacrifice instead, creating a mass panic that led to most of the vault's dwellers to kill each other. Completing the Nipton quest, Booted or the Vault 19 Fallout New Vegas. This created a fearful society that engaged in an annual election for the next overseer, who would be the one to be sacrificed.
Perhaps the most heinous social experiment on the list, the inhabitants of Vault 11 were notified by a supercomputer that one of their own must be sacrificed or else the entire population will be killed.
