Games like IN
Games like IN include MOLE, Inside the Backrooms, Outer Wilds, The Exit 8, and Platform 8. We matched them by the tags players give IN on Steam (Adventure, Simulation, Horror, Psychological Horror, and Atmospheric): closest matches first, and among equally close ones the better-known games.

MOLE
Shared: Simulation · Adventure · Horror

Inside the Backrooms
Shared: Horror · Psychological Horror · Adventure

Outer Wilds
Shared: Adventure · Exploration · Atmospheric

The Exit 8
Shared: Horror · Exploration · Psychological Horror

Platform 8
Shared: Adventure · Psychological Horror · Simulation

Lethal Company
Shared: Horror · Psychological Horror · Exploration

SOMA
Shared: Horror · Psychological Horror · Atmospheric

MiSide
Shared: Psychological Horror · Horror · Atmospheric

Little Nightmares II
Shared: Adventure · Horror · Atmospheric

Little Nightmares
Shared: Adventure · Horror · Atmospheric

Scanner Sombre
Shared: Horror · Adventure · Exploration

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

Iron Lung
Shared: Horror · Psychological Horror · Atmospheric

DREDGE
Shared: Adventure · Exploration · Atmospheric

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

Escape the Backrooms
Shared: Horror · Psychological Horror · Adventure

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

Poppy Playtime
Shared: Horror · Psychological Horror · Puzzle

The Room Two
Shared: Adventure · Atmospheric · Horror

Stray
Shared: Adventure · Atmospheric · Exploration

Killer Frequency
Shared: Adventure · Horror · Simulation

Detention
Shared: Horror · Psychological Horror · Adventure

[Chillas Art] The Convenience Store
Shared: Horror · Adventure · Psychological Horror

Outlast
Shared: Horror · Psychological Horror · Atmospheric