Games like Closing Doors
Games like Closing Doors include Poppy Playtime, From The Darkness, Little Nightmares II, Visage, and Layers of Fear (2016). We matched them by the tags players give Closing Doors on Steam (Psychological Horror, Hidden Object, Singleplayer, Horror, and Dark): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Singleplayer · Horror · Psychological Horror

From The Darkness
Shared: Psychological Horror · Horror · Dark

Little Nightmares II
Shared: Horror · Singleplayer · Psychological Horror

Visage
Shared: Psychological Horror · Horror · Dark

Layers of Fear (2016)
Shared: Psychological Horror · Horror · Singleplayer

Garten of Banban
Shared: Singleplayer · Psychological Horror · Horror

Buckshot Roulette
Shared: Dark · Horror · Singleplayer

Little Nightmares
Shared: Horror · Singleplayer · Dark

Outlast
Shared: Horror · Psychological Horror · Singleplayer

MiSide
Shared: Psychological Horror · Horror · Singleplayer

Sally Face - Episode One
Shared: Psychological Horror · Horror · Dark

Mouthwashing
Shared: Psychological Horror · Horror · Walking Simulator

Five Nights at Freddy's
Shared: Singleplayer · Horror · Psychological Horror

SOMA
Shared: Psychological Horror · Horror · Dark

Blair Witch
Shared: Psychological Horror · Horror · Dark

Welcome to Kowloon
Shared: Psychological Horror · Horror · Walking Simulator

Still Wakes the Deep
Shared: Psychological Horror · Horror · Walking Simulator

No, I'm not a Human
Shared: Psychological Horror · Horror · Singleplayer

Fran Bow
Shared: Psychological Horror · Horror · Singleplayer

Garten of Banban 2
Shared: Singleplayer · Horror · Psychological Horror

ROUTINE
Shared: Psychological Horror · Singleplayer · Dark

9 Childs Street
Shared: Psychological Horror · Horror · Dark

Outlast 2
Shared: Psychological Horror · Horror · Singleplayer

Bad Parenting 1: Mr. Red Face
Shared: Psychological Horror · Horror · Walking Simulator