Aliens: Nightmare Asylum, originally titled Aliens and also known as Aliens: Book Two and Aliens, Vol. 2: Nightmare Asylum, is a four-issue limited comic book series that was first published by Dark Horse Comics from August 1989-May 1990. It was written by Mark Verheiden, illustrated by Den Beauvais and Roger Casselman, inked and colored by Beauvais, lettered by Bob Pinaha and J. David Jackson, and edited by Randy Stradley, with cover art by Beauvais. The comic was later adapted as a novel of the same name by Steve Perry.