The Full Wiki

More info on Decompression Chamber

Decompression Chamber: Misc



Up to date as of February 01, 2010

From The Vault

Fallout 3 locations project
This article is within the scope of the Fallout 3 locations project. This project is dedicated to cleaning up Fallout 3 location articles. If you want to participate, please check the project page.
Decompression Chamber

inside: Mothership Zeta
connects to: Engineering Core
Space Walk
quests: Among the Stars

The Decompression Chamber is a location on board Mothership Zeta.



This is the area used by the player to get to the upper section of the spacecraft, following the destruction of the three generators. The entrance to it is next to the work bench of the engineering core and will be locked until all three generators have been blown up. There is a large button in the middle of the room that starts decompression. Note that the astronaut's spacesuit must be worn before depressurisation to avoid explosive-decompression and the death of the player. Dead alien bodies may be found scattered around after leaving the first chamber (presumably killed by the depressurisation process). The decompression chamber acts as an airlock between the spaceship and the space environment to lessen the strong vacuum effects when the air pressure disperses into space, and is a relatively small area compared to some of the other areas on the spaceship.

Notable Loot

Several Alien Atomizers, Disintegrators, and Power Modules, on the Alien bodies.


  • This is one of many areas of the ship that will not be accessible after the player has completed the main (This Galaxy Ain't Big Enough...) quest.
  • Note that the Decompression Chamber (and by extension, the Space Walk) is a one-way trip. The player cannot return to the airlock after leaving it and must use the transporter to reach the upper level of the ship, completing the Among the Stars quest.


Decompression Chamber only appears in the Fallout 3 add-on Mothership Zeta.

Mothership Zeta (add-on)

This article uses material from the "Decompression Chamber" article on the Fallout wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


Got something to say? Make a comment.
Your name
Your email address