54		Frederik Pohl's Gateway (DOS, 1992)
52		Gateway II: Homeworld (DOS, 1993)
51		Rama (Windows, 1996)
51		Rendezvous with Rama (DOS, 1985)
50		Rama (DOS, 1996)
50		Starship Titanic (Windows, 1998)
50		Frederik Pohl's Gateway (Windows, 1995)
43		Lone Echo (Windows, 2017)
41		7 Days a Skeptic (Windows, 2004)
41		Space Quest 6: Roger Wilco in the Spinal Frontier (Windows, 1995)
40		Captain Gysi und das Raumschiff Bonn (DOS, 1997)
40		Space Quest IV.5: Roger Wilco And The Voyage Home (Windows, 2008)
40		Captain Gysi: Galaxis Futura (Windows, 1998)
40		Space Quest 6: Roger Wilco in the Spinal Frontier (DOS, 1995)

Notes: Games similar to Universe 3, Games like Universe 3, Omnitrend Software, Inc., Omnitrend Software, Inc., DOS, Adventure, Sci-Fi, Futuristic, Puzzle elements, Top-down, Omnitrend science fiction, Space station, Spaceship, PC, Game Similarities.