Vault 15

Vault 15 is a location in the Core Region in 2241.

Background
Despite being numbered "15", it is believed that this was the first vault and the only perfect, safe, and secure one. Like many of the vaults, it was part of the Enclave's grand social experiment. It was to stay closed for fifty years, was overcrowded, and contained occupants of extremely diverse ideologies and cultures. The situation caused by the experiment led to a great schism, during which four groups ultimately left the vault to brave the wastes during the spring of 2141. Three of these groups became roving gangs of raiders: the Jackals, the Vipers, and the Khans in the winter of the same year. The fourth group settled down a few miles west of the vault and founded the village of Shady Sands in the spring of 2142.

While the three gangs harassed the village and each other over the years, Vault 15 itself gradually fell into disrepair. By the time the Vault Dweller came across it in his search for a replacement water chip for Vault 13, it had undergone complete power failure, several cave-ins, water damage, and other catastrophes.

By the time the Shady Sands tribals returned to their former home, they had become the New California Republic, post-war America's fastest growing civilization. In the time that NCR had sprung up and spread across the land, squatters had moved into the area directly over the vault and set up a small shanty town. Shortly after, they allowed a man named Darion and his men move into the vault itself on the condition that they repair the vault's systems in order to help provide the squatters with food, water, and other amenities. At first, this setup was advantageous enough that the squatters rejected all efforts by the NCR to annex them or even gain simple access to the vault.

Then, the Chosen One came along. President Tandi hired the Chosen One to infiltrate Vault 15 - or at least get the squatters to allow NCR access - to retrieve computer parts and other equipment vital to NCR's continued expansion. While accomplishing this quest, he discovered the truth behind Darion's operation; he and his men were actually a band of raiders calling themselves the New Khans, using the vault as a base of operations towards Darion's goal of revenge against Tandi and everything the Vault Dweller stood for. Also, the food and water that he had been providing the squatters with didn't come from the vault's systems after all, but the spoils from raids the New Khans had been running along the wastes between NCR and Vault City.

After Darion was killed by the descendant of the man he had sworn vengeance against nearly eighty years earlier, that very same man brokered a deal with the squatters, who accepted the NCR's assistance. With the support the Chosen One secured from the New California Republic, the Vault 15 squatters soon became self-sufficient and productive members of society. The Chosen One's help with Vault 15 launched the New California Republic's push to civilize it's neighbors. Though there were many more obstacles to overcome, the NCR now had a foothold into the northern wastes.

2161

 * Giant rats
 * Mole rats
 * Pig rats

Fallout

 * Find the Water Chip

Fallout 2

 * Give Spy Holodisk to authority in NCR
 * Kill Darion
 * Rescue Chrissy
 * Complete Deal with NCR

Appearances
Vault 15 appears in Fallout and Fallout 2.