Alien

Aliens are a type of creature.

Background
After the mysterious disappearance of the USSA space capsule Clarabella 7 and the pilot astronaut Colonel Hartigan suspicions arose, and in 2062 the existence of aliens became internally recognized by the government. Alien technology was used to develop Skynet.

The Capital Wasteland Brotherhood of Steel have alien power cells in the Citadel's armory and the Brotherhood Outcasts also have some at Fort Independence. The Enclave has an alien blaster and some alien power cells in the armory of the mobile base crawler at Adams Air Force Base. They possess technologies such as long-term cryostasis, guns, teleportation and holograms. They carry shock batons, disintegrators and atomizers, and use guardian drones.

Encounters

 * In Fallout, the Vault Dweller can encounter a flying saucer with two alien skeletons.
 * In Fallout 2, the Chosen One can encounter two technologies based on alien technology, bio med gel and Skynet.
 * In Fallout 3, the Lone Wanderer can encounter a downed recon craft named Theta and a dead alien. In the Mothership Zeta add-on, the Lone Wanderer can be abducted by zetans at the alien crash site and taken aboard a spaceship named Mothership Zeta.
 * In Fallout: New Vegas, with the Wild Wasteland trait, the Courier can encounter an unnamed recon craft with two aliens and an alien captain nearby.
 * In Fallout 4, the Sole Survivor can encounter an alien spaceship falling from the sky shortly after reaching level 20. Companions have unique commentary upon observing the crash. The crashed UFO is always located east of Oberland station. Following green bloodstains will lead the Sole Survivor to a hostile injured alien which can be looted for the alien blaster pistol.
 * In the Creation Club quest Over the Moon, the Sole Survivor encounters a second alien craft abducting a brahmin, along with two hostile aliens with unique weapons.

Objects
Items and robots

Alien consumables Alien robots Weapons

Alien weapons, 3 Technology

Alien technology, 3

Appearances
Aliens appear in Fallout 3, Fallout: New Vegas, and Fallout 76. They are mentioned in Fallout and Fallout 2.

Behind the scenes
Aliens in Fallout 3 were designed to resemble stereotypical representations of aliens known as "Roswell grays."