Games like Ghost Case
Games like Ghost Case include Little Nightmares, Stray, Little Nightmares II, DreadOut, and Lucius. We matched them by the tags players give Ghost Case on Steam (Horror, Singleplayer, Adventure, Choose Your Own Adventure, and Third Person): closest matches first, and among equally close ones the better-known games.

Little Nightmares
Shared: Horror · Adventure · Singleplayer

Stray
Shared: Adventure · Singleplayer · Horror

Little Nightmares II
Shared: Horror · Singleplayer · Adventure

DreadOut
Shared: Horror · Adventure · Indie

Lucius
Shared: Horror · Adventure · Singleplayer

Poppy Playtime
Shared: Horror · Singleplayer · Adventure

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Adventure

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Adventure

The Walking Dead
Shared: Adventure · Singleplayer · Horror

Alan Wake
Shared: Horror · Adventure · Third Person

Hellblade: Senua's Sacrifice
Shared: Singleplayer · Horror · Adventure

Tomb Raider Game of the Year
Shared: Adventure · Singleplayer · Third Person

Resident Evil 2
Shared: Horror · Singleplayer · Third Person

Until Dawn™
Shared: Horror · Adventure · Singleplayer

A Plague Tale: Innocence
Shared: Adventure · Singleplayer · Third Person

Resident Evil 4 (2005)
Shared: Horror · Singleplayer · Adventure

Subnautica: Below Zero
Shared: Singleplayer · Horror · Adventure

Resident Evil 0
Shared: Horror · Adventure · Singleplayer

The Medium
Shared: Horror · Adventure · Singleplayer

Rise of the Tomb Raider™
Shared: Adventure · Singleplayer · Third Person

Crimson Desert Enhanced
Shared: Singleplayer · Adventure · Third Person

The Beast Inside
Shared: Horror · Adventure · Singleplayer

Outlast
Shared: Horror · Singleplayer · Adventure

The Forest
Shared: Horror · Adventure · Singleplayer