45		La Diosa de Cozumel (DOS, 1990)
44		Los Templos Sagrados (DOS, 1991)
44		Jabato (DOS, 1989)
43		Love's Fiery Imbroglio (DOS, 1988)
43		Chichén Itzá (DOS, 1992)
43		Gerbil Riot of '67 (DOS, 1992)
43		Los Pájaros de Bangkok (DOS, 1988)
43		Dream Zone (DOS, 1988)
42		Passengers on the Wind II (DOS, 1987)
42		Jacaranda Jim (DOS, 1987)
42		Don Quijote (DOS, 1987)
42		Talisman: Challenging the Sands of Time (DOS, 1987)
42		Castle Ralf (DOS, 1987)
41		The Adventures of Alice who Went Through the Looking-Glass and Came Back Though Not Much Changed (DOS, 1986)
40		Ad Verbum (DOS, 2000)
40		A Day for Soft Food (DOS, 1999)
40		Sylvio 2 (Windows, 2017)
40		Shade (DOS, 2000)
40		The Land of Pain (Windows, 2017)
40		Kithe #14 (DOS, 1997)
40		Lupercalia (DOS, 2008)
40		Adventure Book (included games) (DOS, 2001)
40		Lupercalia (Windows, 2008)
40		Ad Verbum (Windows, 2000)
40		Orphée: Voyage aux Enfers (DOS, 1985)
40		Impossible Quest (Windows, 2016)
40		Sea Quest (DOS, 1984)
40		The Eternal Adventure (DOS, 1995)
40		Dream Prisoner (DOS, 1995)
40		Mad Cow Man and Deep Fried Beef Fat Boy (DOS, 1997)

Notes: Games similar to Humbug, Games like Humbug, DOS, Adventure, Interactive Fiction, Text Adventure, 1st-person, PC, Game Similarities.