Engineering Core

The  is a location on board Mothership Zeta.

About
The Engineering Core is the third area that the player encounters aboard the Mothership, and serves as a hub between numerous other locations aboard the ship, including the Steamworks, Hangar, Cryo Lab, Robot Assembly, and Engine Room. Here, the player can also find several other captives who will assist the player aboard the ship. As the player progresses through the Mothership Zeta quest, the Engineering Core changes. Defenses are put up and barricades are made by the other captives. Eventually a broken Nuka-Cola Machine will show up. A Teleport to Bridge appears near the Steamworks entrance, down a corridor to the left of the Nuka-Cola machine.

The Engineering Core is one of the few rooms still available to explore after This Galaxy Ain't Big Enough... quest is complete, as most other rooms beyond it will become inaccessible. At this point, aliens will also begin to spawn occasionally in the room.

Third Home
is an excellent place to store items worth keeping but that the player doesn't wish to always have in inventory, and is much safer than using abandoned houses in the Wasteland. Aliens do not steal items, so leaving unique weapons in cases or even on shelves comes with no risk of thievery. This is useful after the This Galaxy Ain't Big Enough... quest is complete and the player is given control of (parts of) the ship. The ship is simply an alternative and only for asthetic purposes.

Notable loot

 * A Buttercup Toy pony on the table next to where the samurai can usually be found
 * A minigun in good condition can be found agianst the wall to the right of the door to the decompression chamber
 * Several ammunition boxes with various non-alien amno like 10mm, 5mm, or 5.56mm
 * After the quests have been completed, two Aliens can be found here, wielding an Atomizer and Disintegrator, respectively, along with Alien food/ammo. This can be a good way to to replenish your supply of Alien Power Modules. They respawn every few game days. ( Xbox 360 confirmed ).
 * In the hall leading to the Engineering Core lower floor there is a Chinese Commando Hat if you didn't take it from the Taft Tunnel.
 * 26 Alien Power Cells can be found here in a box along with a Nuka-Cola Quantum and a turpentine. This crate appears near the alien workbench only after accomplishing the spacewalk.

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

Bugs

 * A floating turpentine can be found in the room where the captives wait for you near the door at the bottom of the stairs (Xbox and PC). It is supposed to be ontop of the generator that appears here later.