The Incunabulum was a terraforming transport vessel used by Jason and Lucian Church to travel from site to site as part of their work. Whilst transporting passengers to the colony RLW 1289, the vessel unknowingly set down on a Xenomorph-infested moon, leading to the death of all but one of its crew and passengers.
- The word "incunabulum" refers to a very early printed book, specifically those produced before 1501. The word is derived from Latin for swaddling clothes and is used to indicate that these books are the work of a technology still in its infancy. In this regard its use in Aliens: Labyrinth could be a reference to how the rest of the young Paul Church's life is moulded by the events that befall the crew of the vessel.