Games like Ghost
Games like Ghost include Phasmophobia, Sally Face - Episode One, Poppy Playtime, SOMA, and Darkwood. We matched them by the tags players give Ghost on Steam (Action, Horror, Psychological Horror, Realistic, and Logic): closest matches first, and among equally close ones the better-known games.

Phasmophobia
Shared: Horror · Psychological Horror · Supernatural

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

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

SOMA
Shared: Horror · Psychological Horror · Dark

Darkwood
Shared: Horror · Action · Psychological Horror

Inside the Backrooms
Shared: Horror · Psychological Horror · Puzzle

Little Nightmares II
Shared: Horror · Psychological Horror · Puzzle

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Realistic

Pacify
Shared: Horror · Psychological Horror · Supernatural

Ghost Exorcism INC.
Shared: Horror · Psychological Horror · Supernatural

Amnesia: The Dark Descent
Shared: Horror · Psychological Horror · Puzzle

Escape the Backrooms
Shared: Horror · Psychological Horror · Action

Little Nightmares
Shared: Horror · Puzzle · Dark

Total Chaos
Shared: Action · Horror · Psychological Horror

Firework
Shared: Horror · Psychological Horror · Puzzle

Outlast
Shared: Horror · Psychological Horror · Action

Garten of Banban
Shared: Horror · Psychological Horror · Puzzle

Alan Wake
Shared: Action · Horror · Psychological Horror

Metel - Horror Escape
Shared: Horror · Action · Puzzle

The Room Two
Shared: Horror · Puzzle · Hidden Object

The Complex: Expedition
Shared: Horror · Realistic · Psychological Horror

The Painscreek Killings
Shared: Horror · Puzzle · Exploration

Buckshot Roulette
Shared: Horror · Dark · Psychological Horror

Murdered: Soul Suspect
Shared: Horror · Action · Supernatural