Fallout: Ranking Every Vault From Least To Most Horrifying

Vault 94 appears in Fallout 76 and its original purpose sounds all sugar and rainbows.

The Vault was to be populated by non-violent groups who would assumingly leave together in peace and harmony. The Vault had compact spaces for living quarters but large-size communal areas to ensure that the group remained together, and it had plenty of resources, but no weaponry.

As with many Vaults in Fallout, this isn't all it seems. The non-violent dwellers were being study to see how they would adapt to life in a post-apocalyptic world, and they were told to open the Vault door to outside people if they needed help, purely so Vault-Tec could see how they would go against their belief system to protect themselves.

A year after being sealed in 2077, the Vault was opened so that Vault Ambassadors could travel to the Wasteland and ask people to come back to the Vault. Many of these were brutally murdered by the local population.

For the rest of the Vault Dwellers, they were all murdered when an Ambassador brought back residents of Harpers Ferry. The new arrivals were extremely suspicious of the nice inhabitants, and decided to just blow them all away and take the Vault for themselves.