64		Half-Life 2 (Windows, 2004)
63		The Chronicles of Riddick: Escape from Butcher Bay (Windows, 2004)
63		Half-Life 2: Episode Two (Windows, 2007)
63		Dark Side (DOS, 1988)
62		Half-Life 2: Episode One (Windows, 2006)
62		Valley (Windows, 2016)
62		Prey (Windows, 2006)
61		Prominence (Windows, 2015)
61		The Magic Circle (Windows, 2015)
61		Star Trek: Elite Force II (Windows, 2003)
61		Psychonauts in the Rhombus of Ruin (Windows, 2018)
61		Project Eden (Windows, 2001)
60		Polarity (Windows, 2014)
60		Redemption: Saints and Sinners (Windows, 2016)
60		Arktika.1 (Windows, 2017)
60		Mortal Coil: Adrenalin Intelligence (DOS, 1995)
60		Caretaker: Sacrifice (Windows, 2016)
60		All Fall Down (Windows, 2015)
60		Memorabilia: Mia's Mysterious Memory Machine (Windows, 2010)
60		GlPortal (Windows, 2014)
60		Slamscape (Windows, 1996)
60		Doctor Who: Destiny of the Doctors (Windows, 1997)
51		Cyberia: Mission Norway (DOS, 1994)
51		Cyberia (DOS, 1994)
51		No Thing (Windows, 2016)
50		Cyberia (Windows, 2015)
50		Eradicator (Windows, 2014)
50		NeonCode (Windows, 2018)
50		Eradicator (DOS, 1996)
50		Alien Odyssey (DOS, 1995)
50		Duke Nukem Forever (Windows, 2011)
50		Way of Hero (Windows, 2017)
50		Magrunner: Dark Pulse (Windows, 2013)
41		Cyberwar (DOS, 1994)

Notes: Games similar to Eco Phantoms, Games like Eco Phantoms, Splinter Vision LTD, European Electronic Zoo Ltd., DOS, Action, Post-Apocalyptic, Sci-Fi, Futuristic, Puzzle elements, 1st-person, PC, Game Similarities.