52		Star Wars: Knights of the Old Republic II - The Sith Lords (Windows, 2005)
50		Whale's Voyage II: Die Übermacht (DOS, 1995)
44		Spacewrecked: 14 Billion Light Years From Earth (DOS, 1991)
44		Sentinel Worlds I: Future Magic (DOS, 1988)
40		Toxic Mayhem: The Troma Project (Windows, 2002)

Notes: Games similar to Xenomorph, Games like Xenomorph, Pandora, Pandora, DOS, Role-Playing, RPG, Sci-Fi, Futuristic, Horror, Real-Time, 1st-person, Space station, Spaceship, PC, Game Similarities.