64		Suspect (DOS, 1984)
62		Ballyhoo (DOS, 1986)
62		Moonmist (DOS, 1986)
60		The Hound of Shadow (DOS, 1989)
51		Arbeit von Spacekraft's Crash Garrett (DOS, 1987)
44		Deadline (DOS, 1984)
43		James Bond 007: A View to a Kill (DOS, 1985)
42		Sherlock Holmes: The Vatican Cameos (DOS, 1986)
41		Hexuma: Das Auge des Kal (DOS, 1992)
40		Curses (DOS, 1995)
40		Sherlock: The Riddle of the Crown Jewels (DOS, 1988)
40		Guilty Bastards (Windows, 1998)
40		At Wit's End (Windows, 2002)
40		Ooze: Creepy Nites (DOS, 1989)

Notes: Games similar to The Witness, Games like The Witness, Infocom, Inc., Infocom, Inc., DOS, Adventure, Interactive Fiction, Text Adventure, Detective, Mystery, Interwar, PC, Game Similarities.