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The experimentation lab is a location on board Mothership Zeta. It appears to be the origin of the ship's abominations.


Based on the name of this area, the captive recordings found, the odd machinery, and the number of abominations in holding cells at the end, it is probable that the aliens are creating the abominations here as part of some scientific experiment on human anatomy.


The experimentation lab is located between the weapons lab and the biological research areas of Mothership Zeta. It mostly contains harmless alien workers who will simply run from the player, a few hostile weapon-using aliens, and abominations.

This level is easily navigated and completed. For the most part, it runs northwest and west, eventually entering a room with a generator. The forcefield impeding the way to biological research will dissipate if the generator is destroyed, allowing the player to continue westward to biological research.

A healing archway is located in the room to the left, just before entering the generator room.

Notable loot

Related quests


  • 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.
  • The collected order of recordings is reverse i.e. 20, 10, 9.
  • It is possible for the player to lock themselves in one of the side rooms by opening the door using the door controls, going through, and using it to close the doors. Attempting to re-open the doors will result in message "This object is activated from somewhere else". Somewhere else being on the other side of the door.


Experimentation lab appears only in the Fallout 3 add-on Mothership Zeta.