47		Rama (Windows, 1996)
46		Rama (DOS, 1996)
45		The Arrival (Windows, 1997)
45		Gord@k (Windows, 1997)
44		NET:Zone (Windows, 1996)
44		NET:Zone (DOS, 1996)
43		Gadget: Invention, Travel & Adventure (Windows, 1995)
43		Aliens: A Comic Book Adventure (DOS, 1995)
43		Blackstar: Agent of Justice (DOS, 1995)
43		Biosys (Windows, 1999)
43		Schizm: Mysterious Journey (Windows, 2001)
42		Andromedas Erbe (DOS, 1994)
42		Commander Blood (DOS, 1994)
42		Mission Supernova (DOS, 1994)
41		Flies: Attack on Earth (DOS, 1993)
40		Tacoma (Windows, 2017)
40		The Alpha Device (Windows, 2018)
40		Water Planet (Windows, 2017)
40		Batman: Arkham VR (Windows, 2017)
40		3D Trek (DOS, 1992)
40		The Infinite Ocean (Windows, 2004)
40		Acalius: Enemies of the Wild (Windows, 2005)
40		Verde Station (Windows, 2014)
40		Captain Blood (DOS, 1988)
40		Meltdown (DOS, 1990)

Notes: Games similar to Obsidian, Games like Obsidian, Rocket Science Games, Inc., SegaSoft, Inc., Windows, Adventure, Cyberpunk, Dark Sci-Fi, Sci-Fi, Futuristic, 1st-person, PC, Game Similarities.