59		Gray Dawn (Windows, 2018)
57		Return of the Obra Dinn (Windows, 2018)
56		Stories Untold (Windows, 2017)
55		July 4, 1976 (Windows, 2017)
55		Kona (Windows, 2017)
55		Among the Innocent: A Stricken Tale (Windows, 2017)
55		Modern Tales: Age of Invention (Windows, 2017)
55		The Hospital: Allison's Diary (Windows, 2017)
54		The Solus Project (Windows, 2016)
54		The Town of Light (Windows, 2016)
54		Dreamwalker: Never Fall Asleep (Windows, 2018)
54		Yeli Orog (Windows, 2018)
54		Silent Descent (Windows, 2018)
54		Obscuritas (Windows, 2016)
54		Sherlock Holmes: The Devil's Daughter (Windows, 2016)
50		Dark Tales: Edgar Allan Poe's The Premature Burial (Windows, 2011)
50		AGON: The Lost Sword of Toledo (Windows, 2008)
50		Black Dahlia (Windows, 1998)
50		KGB (DOS, 1992)
50		Lights Out (Windows, 2004)
50		Real Crimes: The Unicorn Killer (Windows, 2009)
50		Ramonovo Kouzlo (DOS, 1995)
49		The Assembly (Windows, 2016)
45		Profound Red (Windows, 2017)
45		Black Mirror (Windows, 2017)
45		Nancy Drew: Sea of Darkness (Windows, 2017)
44		Vampire Legends: The True Story of Kisilova (Windows, 2015)
44		The Birdwatcher (Windows, 2018)
44		Graven: The Purple Moon Prophecy (Windows, 2016)
44		Silent Footsteps (Windows, 2018)
43		Shades of Black (Windows, 2015)
43		Jane Austen's Estate of Affairs (Windows, 2015)
42		Vlad the Impaler (Windows, 2014)
42		Bosch's Damnation (Windows, 2014)
41		Cold Case Summer (Windows, 2013)
40		A Vampire Romance (Windows, 2010)
40		The Colour of Murder (Windows, 2008)
40		Blue Madonna (Windows, 2011)
40		Black Circle (Windows, 2009)
40		Black Sect Remake (Windows, 2012)
40		East Side Story (Windows, 2007)
40		Hope Springs Eternal (Windows, 2005)
40		Remedy (Windows, 2004)
40		Time Stand Still (Windows, 2006)
40		Amber's Blood (Windows, 2012)

Notes: Games similar to The Fidelio Incident, Games like The Fidelio Incident, Act 3 Games, LLC, Act 3 Games, LLC, Windows, Adventure, Europe, Puzzle elements, Survival, Thriller, 1st-person, UnrealEngine4, PC, Game Similarities.