Games like The Forest Cathedral
Games like The Forest Cathedral include Kerbal Space Program, INMOST, Slime Rancher, Rain World, and Thank Goodness You're Here!. We matched them by the tags players give The Forest Cathedral on Steam (Adventure, Indie, Thriller, 2D Platformer, and Science): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Simulation · Science · Indie

INMOST
Shared: Indie · Adventure · Thriller

Slime Rancher
Shared: Adventure · Exploration · Simulation

Rain World
Shared: Indie · Exploration · Adventure

Thank Goodness You're Here!
Shared: Adventure · Indie · 2D Platformer

Firewatch
Shared: Adventure · Indie · Exploration

Don't Starve
Shared: Adventure · Indie · Exploration

Cairn
Shared: Indie · Adventure · Exploration

노베나 디아볼로스
Shared: Adventure · Indie · Simulation

Beyond Blue
Shared: Adventure · Indie · Exploration

A Short Hike
Shared: Adventure · Indie · Exploration

Journey
Shared: Adventure · Indie · Exploration

Outer Wilds
Shared: Adventure · Exploration · Indie

The Long Dark
Shared: Adventure · Exploration · Indie

Hollow Knight: Silksong
Shared: Indie · Adventure · Exploration

鬼谷八荒 Tale of Immortal
Shared: Simulation · Adventure · Indie

Twelve Minutes
Shared: Adventure · Indie · Thriller

Deliver Us The Moon
Shared: Adventure · Indie · Exploration

SnowRunner
Shared: Adventure · Simulation · Exploration

Thief Simulator
Shared: Simulation · Adventure · Indie

Internet Cafe Simulator
Shared: Indie · Simulation · Adventure

Stray
Shared: Adventure · Exploration · Indie

PEAK
Shared: Adventure · Exploration · Indie

Wobbly Life
Shared: Adventure · Simulation · Indie