83		Psychonauts (Windows, 2005)
66		Impulsion (Windows, 2018)
65		Valley (Windows, 2016)
64		Half-Life 2 (Windows, 2004)
63		The Magic Circle (Windows, 2015)
63		Half-Life 2: Episode Two (Windows, 2007)
63		Prominence (Windows, 2015)
63		Redemption: Saints and Sinners (Windows, 2016)
63		The Chronicles of Riddick: Escape from Butcher Bay (Windows, 2004)
63		Caretaker: Sacrifice (Windows, 2016)
62		404Sight (Windows, 2015)
62		All Fall Down (Windows, 2015)
62		Half-Life 2: Episode One (Windows, 2006)
62		Prey (Windows, 2006)
62		DeadCore (Windows, 2014)
61		Polarity (Windows, 2014)
61		GlPortal (Windows, 2014)
61		Mirror's Edge (Windows, 2009)
61		Project Eden (Windows, 2001)
61		Star Trek: Elite Force II (Windows, 2003)
60		Dark Side (DOS, 1988)
60		Doctor Who: Destiny of the Doctors (Windows, 1997)
60		Vintergatan: Rädda Jorden! (Windows, 2003)
60		Slamscape (Windows, 1996)
60		Mortal Coil: Adrenalin Intelligence (DOS, 1995)
60		Memorabilia: Mia's Mysterious Memory Machine (Windows, 2010)
60		Eco Phantoms (DOS, 1990)
55		NeonCode (Windows, 2018)
54		No Thing (Windows, 2016)
53		Headlander (Windows, 2016)
52		Cyberia (Windows, 2015)
51		Eradicator (Windows, 2014)
50		Alien Odyssey (DOS, 1995)
50		Eradicator (DOS, 1996)
50		Magrunner: Dark Pulse (Windows, 2013)
50		Duke Nukem Forever (Windows, 2011)
50		Mutan Zone (DOS, 1988)
50		Cyberia (DOS, 1994)
50		Cyberia: Mission Norway (DOS, 1994)
40		Cyberwar (DOS, 1994)

Notes: Games similar to Psychonauts in the Rhombus of Ruin, Games like Psychonauts in the Rhombus of Ruin, Double Fine Productions, Inc., React! Games LLC, Double Fine Productions, Inc., Windows, Action, Sci-Fi, Futuristic, Platform, Puzzle elements, 1st-person, PC, Game Similarities.