Crashed UFO


 * Alien Ship, a crashed alien craft in a special encounter in Fallout.
 * Flying saucer, an alien ship that was captured by humans then re-captured by aliens, crashed and found in the Alien Ship special encounter in Fallout.
 * Unidentified Flying Debris or "Firelance event", a random encounter in which a UFO explodes overhead leaving behind the Firelance and some alien power cells, in Fallout 3.
 * Alien crash site, the crash sight of recon craft Theta and launch point for the Mothership Zeta add-on in Fallout 3
 * The extraterrestrial landing zone found just north of Horowitz Farmstead, complete with spacecraft, and three aliens, if the Courier has the Wild Wasteland trait. The captain has the Alien blaster. (Fallout: New Vegas)