The Vault - Fallout Wiki

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The Vault - Fallout Wiki
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Engine room
Icon section.png
Part ofMothership Zeta
Connects toEngineering core
Cell NameDLC05EngineRoom
ref id000034dd
Engine Room map.png
Location of Electro-Suppressor (A) highlighted.
Gametitle-FO3 MZ.png
Gametitle-FO3 MZ.png

The engine room is a location on board Mothership Zeta.


The overall area is pretty much circular with one "inaccessible" door, forcing the player to complete the area in a counter-clockwise fashion. Reaching the area inaccessible via the main room is pretty much linear, with straight hallways and corridors. It is populated by aliens, support drones, and guardian drones. There are also a few opportunities for the player to sabotage turrets. Except for being a place where a unique version of shock baton can be found, the engine room is pretty similar to the rest of the ship, both in appearance and loot.

The area is composed of large main rooms, several small rooms, and hallways between them. It cannot be accessed after main quest is completed.

Notable loot


  • This is one of many areas of the ship that will not be accessible after the player has completed This Galaxy Ain't Big Enough....
  • If you take Somah into the engine room she will make comments about smelling flammable gas as well as some vague comment about wondering 'what a well placed grenade would do to that thing' but nothing in the area seems to detonate, not even with a flamer. Elliot seems not to say anything. Using the control panel south of the room with the three "X" pipe unions may or may not have an effect on this happening.
  • PCIcon pc.png If exploring with noclip, there is a switch under the ground near the back of the level labeled "Release Control." In GECK it's labeled DLC05ERoomGasTrapControl and in the console it's labeled xx007a52.


The engine room only appears in the Fallout 3 add-on Mothership Zeta.