65		OK/Normal (Windows, 2018)
65		PT for PC (Windows, 2018)
65		Imscared (Windows, 2016)
65		Case 2: Animatronics Survival (Windows, 2018)
65		The Occluder (Windows, 2018)
64		Corridor 15 (Windows, 2017)
64		Apocalypse: The Game (Windows, 2017)
64		Narcosis (Windows, 2017)
64		Perception (Windows, 2017)
63		Ad Exitum (Windows, 2016)
62		Stairs (Windows, 2015)
62		Boogeyman (Windows, 2015)
62		Amnesia: The Dark Descent (Windows, 2011)
62		Five Nights at Freddy's 4 (Windows, 2015)
62		BlackShadows (Windows, 2015)
61		Haunted House: Cryptic Graves (Windows, 2014)
61		Passing Pineview Forest (Windows, 2014)
60		Amnesia: A Machine for Pigs (Windows, 2013)
60		The Void (Windows, 2008)
54		FOTD (Windows, 2017)
54		Basement (Windows, 2017)
54		Sophie's Curse (Windows, 2016)
54		Tattletail (Windows, 2016)
54		Last Answer (Windows, 2017)
53		Shut Eye (Windows, 2016)
45		The Nightfall (Windows, 2018)
45		Five Nights at Freddy's: Sister Location (Windows, 2016)
41		Overcast: Walden and the Werewolf (Windows, 2014)

Notes: Games similar to Ultimate Custom Night, Games like Ultimate Custom Night, Windows, Adventure, Survival Horror, Horror, 1st-person, PC, Game Similarities.