Vault 106

Vault 106 is one of the Vault-Tec Vaults located in the Capital Wasteland. It is located south-southeast of Arefu and directly south of Kaelyn's Bed & Breakfast, a bit north of Jury Street Metro Station.

Background
As part of the Vault Experiment, psychoactive drugs were released into the Vault 106 air filtration system 10 days after the door was sealed. By 2277, the vault's interior is mostly destroyed but is filled with insane survivors. The psychoactive drugs are still being pumped through the vault's air filtration systems, as evidenced by the player's vision suddenly being shaded blue at the same time that hallucinations appear. Information in the vault's computer terminals reveals that the Overseer knew that the inhabitants of his vault would be fodder for drug testing and he instructed his security personnel to tell those in the vault that everything was fine. At the very end of the vault is a cave-like area, where skeletons and other items are located.

Enemies

 * Several insane survivors inhabit Vault 106. They wear Vault 106 jumpsuits and wield a variety of melee weapons, such as lead pipes, knives, baseball bats, pool cues, Chinese officer's swords, sledgehammers (at high levels), etc. Despite not wearing armor, the insane survivors are slightly tougher than the average raider.
 * A "survivor" (who has the same ambient/combat voice files as a raider) is on the lowest level, at the end of the science lab section, wearing a Vault lab uniform and wielding a baseball bat.

When first encountered, the survivor will activate a Stealth Boy. (This is evidenced by the fact that your non-human followers will have a hard time shooting the Survivor as well; if it were a hallucination, only the Lone Wanderer would have difficulty). The Stealth Boy will remain active until the Survivor is killed. The player then has a hallucination in which the Tunnel Snakes (Butch DeLoria, Wally Mack and Paul Hannon) from Vault 101 attempt to kill the player. After the Survivor sustains some damage, the Tunnel Snakes will use Stealth Boys and flee, and the player will see as if in a hallucination (with the purple tint). This will end after killing the survivor. It is worth noting that if the Tunnel Snakes are killed by the Lone Wanderer or if the player uses the Mesmetron on them in the hallucination, they just disappear without leaving a body behind. Both killing them and them fleeing ends the hallucination.

Living quarters

 * The Science bobblehead is located in the living quarters. After you first enter the living quarters (it's a two level room: top level), enter the door on the far left hand side of the room, diagonally across from where you first enter. Proceed to a hallway into a fairly large room (for a vault); this room has 3 windows on each side that look into a subterranean cave. The bobblehead is on a bookshelf against the back wall (3rd shelf)!
 * A copy of Nikola Tesla and You is inside the classroom in the living quarters - the room to your left after you first enter the living quarters area. It's hidden in the bottom wooden box of those stacked on the teacher's desk.

Science lab

 * A book Tumblers Today is on the science lab level, two floors down from the science lab level entrance, inside a large room with 2 lockers visible from the door. It's on an overturned mainframe cabinet in the south west corner of the room with two milk bottles on it.
 * A mini nuke is in the final room of the science lab area, just past the fight with the Vault 106 survivor.
 * There are two Vault 106 master keys located in the Vault. One can be found next to a functional computer terminal in the northwest corner of a room in the living quarters that is only accessible through the science labs. (You can see the room and the science lab's door through barred windows in the living quarters, but you have to go through a door in a room with a reactor in the labs to get to it.) There is also a hidden key at the bottom of a shelf in the store room, behind the one where you fight the Vault 106 survivor. This key cannot be picked up without using the tcl command and going as close as possible to the key.

Appearances
Vault 106 is mentioned in Fallout Bible 1 and appears in Fallout 3.

Bugs

 * Attempting to speak with the Vault 101 Overseer or Amata hallucination may cause the game to freeze.
 * The hallucinations of your Dad that appear throughout Vault 106 are always the default Caucasian model, even if you choose a different race for your player character (and thus also for your father).
 * The game sometimes defaults your body (though not the head) model to the default Caucasian model, staying that way until you reload the game.
 * At higher levels when attacking the Vault 106 survivor, even though the survivor might be dead, the Tunnel Snakes will literally "float" into the room without the blue hallucination backdrop. Killing them grants experience points.
 * If you shoot at Amata she will disappear, but if you kill her with one shot you will receive negative karma and her clones will turn hostile towards you but, upon reaching you, they'll just stand next to you giving you an angry look with their fists up.
 * Despite the insane survivor's natural hostility toward the player, dropping onto them a live grenade grants bad karma.
 * Some hallucinations that are targeted in V.A.T.S. will cause the game to crash if they disappear while V.A.T.S is zooming in or the player is taking out their weapon.
 * In the Overseer's office, along the north wall, you may be able to drop through the floor/wall. If you do so, you will fall outside the normal passageways, and eventually will be placed back into the Vault. However, if you land in the correct spot; you will be able to walk on the ceiling of the lower level corridors. You can interact with doors and other items within reach.
 * If you shut the main Vault door (The round one) it will appear as if it is not shut all of the way. Another way to see this is to leave the door open and you will see that it is in fact pulled farther back than the rest of the vault doors in the Capital Wasteland.

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