Games like The Paranormal is Happening
Games like The Paranormal is Happening include Firewatch, What Remains of Edith Finch, The Forest, Scanner Sombre, and PEAK. We matched them by the tags players give The Paranormal is Happening on Steam (Action, Adventure, Simulation, Walking Simulator, and Collectathon): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Exploration

The Forest
Shared: Adventure · Action · Horror

Scanner Sombre
Shared: Walking Simulator · Adventure · Exploration

PEAK
Shared: Adventure · Exploration · First-Person

[Chillas Art] The Convenience Store
Shared: Adventure · Simulation · Action

Platform 8
Shared: Adventure · Simulation · Walking Simulator

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · Action · First-Person

Crime Scene Cleaner
Shared: Simulation · Action · First-Person

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Exploration · First-Person

Outlast
Shared: First-Person · Adventure · Atmospheric

A Plague Tale: Requiem
Shared: Action · Adventure · Exploration

The Long Dark
Shared: Exploration · Adventure · First-Person

Layers of Fear (2016)
Shared: Walking Simulator · Adventure · First-Person

The Exit 8
Shared: Walking Simulator · Exploration · First-Person

POOLS
Shared: Walking Simulator · Exploration · Realistic

The Complex: Expedition
Shared: Exploration · Action · Adventure

Internet Cafe Simulator 2
Shared: Simulation · Exploration · 3D

Visage
Shared: Adventure · First-Person · Horror

SOMA
Shared: Atmospheric · Exploration · Horror

Among the Sleep - Enhanced Edition
Shared: Adventure · Walking Simulator · First-Person

The Beast Inside
Shared: Adventure · Action · First-Person

Valley
Shared: Adventure · Action · Exploration

Outer Wilds
Shared: Adventure · Exploration · Atmospheric