45		Nine Princes in Amber (DOS, 1985)
45		Star Trek: The Kobayashi Alternative (DOS, 1985)
45		The Adventures of Buckaroo Banzai: Across the Eighth Dimension (DOS, 1985)
45		Rendezvous with Rama (DOS, 1985)
44		Star Trek: The Promethean Prophecy (DOS, 1986)
44		Amazon (DOS, 1984)
43		Supernova (DOS, 1987)
43		Stationfall (DOS, 1987)
43		Planetfall (DOS, 1983)
42		The Twilight Zone (DOS, 1988)
42		Timequest (DOS, 1991)
42		Frederik Pohl's Gateway (DOS, 1992)
42		Guardians of Infinity: To Save Kennedy (DOS, 1988)
42		Star Trek: First Contact (DOS, 1988)
42		Starcross (DOS, 1982)
42		Alien (DOS, 1982)
42		The Star Portal (DOS, 1988)
41		Gateway II: Homeworld (DOS, 1993)
40		Las llaves del tiempo (DOS, 1999)
40		Kingdom Without End (DOS, 2001)
40		Projekt Prometheus (DOS, 1991)
40		Frederik Pohl's Gateway (Windows, 1995)
40		Gun Mute (Windows, 2008)
40		Demoniak (DOS, 1991)
40		Versus: The Elite Trials (Windows, 2016)

Notes: Games similar to Dopplegänger, Games like Dopplegänger, MindImage Software, Inc., DOS, Adventure, Sci-Fi, Futuristic, Interactive Fiction, Text Adventure, PC, Game Similarities.