The Vault - Fallout Wiki

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The Vault - Fallout Wiki
The Vault - Fallout Wiki
Icon disambig.svg
For the location/alien ship, see Zeta.
Mothership Zeta
FO3MZ Cover.png
DeveloperBethesda Game Studios
PublisherBethesda Softworks
Size324.36 MB
Release date
PCAugust 3, 2009
Xbox 360August 3, 2009
PlayStation 3October 8, 2009
PCGames for Windows Live
Xbox 360Xbox Live Marketplace
PlayStation 3PlayStation Network
PatchPatch 1.7 (PC)
Patch 1.6 (PlayStation 3)
Patch 1.5 (Xbox 360)
Gametitle-FO3 MZ.png
Gametitle-FO3 MZ.png

Defy hostile alien abductors and fight your way off of the massive Mothership Zeta, orbiting Earth miles above the Capital Wasteland. Mothership Zeta takes Fallout 3 in an entirely new direction – outer space. Meet new characters and join with them in a desperate bid to escape the aliens’ clutches. To do so, you’ll wield powerful new weapons, like the alien atomizer, alien disintegrator, and drone cannon, and deck yourself out in brand new outfits, like the Gemini-Era spacesuit and even samurai armor.

— Official description

Mothership Zeta is the fifth and final add-on for Fallout 3, developed and published by Bethesda Softworks.

Release and availability

Mothership Zeta was initially released exclusively as downloadable content on Xbox Live and Games for Windows Live on August 3, 2009. It was made available for PlayStation Store on October 8, 2009. For Xbox 360, download codes for Xbox Live are also available in retail.

Like all add-ons, it is included in the Fallout 3: Game of the Year Edition, released on October 13, 2009 for all platforms.

For Steam users, Mothership Zeta, along with all the other Fallout 3 add-ons, is available, released on July 16, 2010.


Aboard the Mothership

In this add-on, the Lone Wanderer finds themselves abducted by extraterrestrials and taken them aboard their alien mothership after stumbling upon the source of an unintelligible radio transmission and exotic piece of alien technology. Orbiting high above the Earth's atmosphere, the Lone Wanderer must adapt to using alien technology to defeat their alien captors... with the help of some fellow abductees, of course.

The abductees all have special talents and backgrounds from every walks of life. A little girl, a U.S. Army medic from the Anchorage Reclamation, a post-War slaver, a cowboy from the Wild West and a Japanese samurai all aid the Lone Wanderer in their combined mission to escape the foreign environment. After defeating the alien captors, the Lone Wanderer takes control of the mothership, but is able to return to Earth at anytime, leaving this ship in the hands of a capable crew.




Armor and clothing




Other items



Name Level req Other requirements Ranks Description Code
Xenotech Expert - completion of the raider firing range where you obtain the Destabilizer 1 +20% damage with alien weapons xx00abb0

Quests and achievements

Main quests

Name Location(s) Given by Reward Achievement points Trophy Quest ID Image
Not of This World Alien Crash Site
Holding Cells
Engineering Core
Notification 300 XP
20 Silver xx000802 Not of This World.png
Among the Stars Mothership Zeta Sally 300 XP 20 Silver xx000803 Among the Stars.png
This Galaxy Ain't Big Enough... Mothership Zeta Sally 600 XP
Captain's sidearm
40 Gold xx000804 This Galaxy Ain't Big Enough....png

Other achievements

Name Requirement Achievement points Trophy Image
Alien Archivist Collected all Alien Captive Recordings 20 Silver Alien Archivist.png




Trailer screenshots


  • Mothership Zeta trailer

External links