Games like Anomaly Corridor
Games like Anomaly Corridor include Firewatch, What Remains of Edith Finch, Slime Rancher, Crime Scene Cleaner, and The Long Dark. We matched them by the tags players give Anomaly Corridor on Steam (Adventure, Simulation, Walking Simulator, 3D Platformer, and Underground): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · First-Person

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · First-Person

Slime Rancher
Shared: Adventure · Exploration · First-Person

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

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

The Stanley Parable
Shared: Walking Simulator · First-Person · Adventure

The Exit 8
Shared: Walking Simulator · Exploration · Underground

Thief Simulator
Shared: Simulation · Adventure · First-Person

Totally Accurate Battle Simulator
Shared: Simulation · Adventure · Realistic

POOLS
Shared: Walking Simulator · Realistic · First-Person

SnowRunner
Shared: Simulation · Adventure · Realistic

I'm counting to 6...
Shared: Adventure · Simulation · Walking Simulator

Platform 8
Shared: Adventure · Walking Simulator · Simulation

Valley
Shared: Adventure · First-Person · Exploration

Forza Horizon 5
Shared: Simulation · Adventure · Realistic

Gone Home
Shared: Walking Simulator · First-Person · Exploration

Outer Wilds
Shared: Adventure · Exploration · Mystery

September 7th
Shared: Walking Simulator · 3D Platformer · Simulation

The Witness
Shared: First-Person · Exploration · Adventure

Scanner Sombre
Shared: Walking Simulator · Adventure · Exploration

The Beginner's Guide
Shared: Walking Simulator · Adventure · First-Person

Bright Lights of Svetlov
Shared: Walking Simulator · Adventure · First-Person

Thief Simulator 2
Shared: Simulation · Adventure · First-Person

Internet Cafe Simulator 2
Shared: Simulation · Exploration · First-Person