Games like Desolation
Games like Desolation include BIGFOOT, Escape the Backrooms, The Outlast Trials, Dead by Daylight, and Outlast. We matched them by the tags players give Desolation on Steam (Horror, Action, Multiplayer, 3D, and Adventure): closest matches first, and among equally close ones the better-known games.

BIGFOOT
Shared: Horror · Multiplayer · PvE

Escape the Backrooms
Shared: Horror · Multiplayer · Adventure

The Outlast Trials
Shared: Horror · Multiplayer · Action

Dead by Daylight
Shared: Horror · Multiplayer · Survival Horror

Outlast
Shared: Horror · Atmospheric · Multiplayer

PEAK
Shared: Multiplayer · Adventure · 3D

Five Nights at Freddy's: Security Breach
Shared: Horror · Multiple Endings · 3D

The Beast Inside
Shared: Horror · Adventure · Multiplayer

Resident Evil 3
Shared: Action · Horror · Multiplayer

Inside the Backrooms
Shared: Horror · Multiplayer · Adventure

Backrooms: Escape Together
Shared: Horror · Multiplayer · Atmospheric

Warhammer 40,000: Space Marine 2
Shared: Action · Multiplayer · Adventure

GONE Fishing
Shared: Action · Horror · Adventure

Subnautica 2
Shared: Horror · Multiplayer · Adventure

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Action · Adventure

Resident Evil Revelations 2
Shared: Horror · Multiplayer · Action

Phasmophobia
Shared: Horror · Multiplayer · Supernatural

The Texas Chain Saw Massacre
Shared: Horror · Multiplayer · Action

Sons Of The Forest
Shared: Multiplayer · Horror · Adventure

Pacify
Shared: Horror · Multiplayer · Action

Darkwood
Shared: Horror · Action · Adventure

Resident Evil 2
Shared: Horror · Action · Survival Horror

Resident Evil 7 Biohazard
Shared: Horror · Action · Atmospheric

Outlast 2
Shared: Horror · Multiplayer · Atmospheric