60		Lost Secret of the Rainforest (DOS, 1993)
42		Mixed Up Fairy Tales (DOS, 1991)
40		Didi & Ditto Preschool - Mother Nature's Visit (Windows, 2008)
40		Mixed-Up Mother Goose (DOS, 1991)
40		Marvellous Mice Adventures: Meeting Sea Rat (Windows, 2007)
40		Jessy: Ein Zirkuspferd in Not (Windows, 2005)
40		Heidi: Deine Welt sind die Berge (Windows, 2004)
40		Disney's Mickey Saves the Day: 3D Adventure (Windows, 2001)
40		Crystal Rain Forest V2 (Windows, 2005)
40		JumpStart Adventures: 6th Grade - Mission: Earthquest (Windows, 1998)

Notes: Games similar to EcoQuest: The Search for Cetus, Games like EcoQuest: The Search for Cetus, Sierra On-Line, Inc., Sierra On-Line, Inc., DOS, Adventure, Educational, Ecology, Nature, 3rd-person, Other, Sierra's Creative Interpreter, SCI, Aquatic, Underwater, PC, Game Similarities.