Fallout: New Vegas - The Botanical Nightmare That Was Vault 22

gamerant.com:

Vault 22 is an abandoned vault that can be found in Fallout: New Vegas. Unlike Vault-Tec’s other post-war projects, this one seems to have a benevolent goal. Unfortunately, things still ended in disaster.

Vault 22 of Fallout: New Vegas is located west of The Thorn and east of Jacobstown. It’s also related to multiple quests, such as “Still in the Dark,” “There Stands the Grass,” and “Bleed Me Dry.”

Fallout: New Vegas 2 Won’t Exactly Be ‘New Vegas 2’

Vault 22 — arguably one of the most breathtaking locations in Fallout: New Vegas— was built to house scientists who specialized in botany and crop production. The facility was outfitted with laboratories and scientific tools that its inhabitants could use to study methods of food production and develop ways of improving them. For instance, the scientists conducted research on advanced fertilizers and pest control. All this was done to combat the hunger problem in the Mojave Wasteland.

After the bombs fell in the world of Fallout, the scientists of Vault 22 got to work. One of the research projects involved experimenting on a fungus known as «Beauveria mordicana,» as it was often used for pest control. This, however, caused the specimen’s fungal spores to become airborne, and they spread throughout the vault. This then caused respiratory problems to develop among the vault residents, most notably coughing fits. Utility personnel ran diagnostics on the facility’s air circulation systems but found no harmful gasses. However, they found strange residue in the filters and forwarded the samples to the scientists for testing.

Fallout: New Vegas — How Vault 21 Became A Prominent Hotel and Casino

While the fungal spores remained airborne, the vault residents’ health grew worse. One