Games like Kadath
Games like Kadath include The Room Three, Heartbound, Call of the Sea, Conarium, and Seen. We matched them by the tags players give Kadath on Steam (Adventure, Indie, Early Access, and Lovecraftian): closest matches first, and among equally close ones the better-known games.

The Room Three
Shared: Adventure · Indie · Lovecraftian

Heartbound
Shared: Adventure · Indie · Early Access

Call of the Sea
Shared: Adventure · Lovecraftian · Indie

Conarium
Shared: Adventure · Indie · Lovecraftian

Seen
Shared: Indie · Adventure · Early Access

No one lives under the lighthouse Director's cut
Shared: Indie · Adventure · Lovecraftian

DREDGE
Shared: Adventure · Lovecraftian · Indie

Feed and Grow: Fish
Shared: Early Access · Indie · Adventure

Running Through Russia
Shared: Indie · Adventure · Early Access

Don't Starve
Shared: Adventure · Indie

G2 Fighter / 基因特工
Shared: Adventure · Indie · Early Access

Brothers - A Tale of Two Sons
Shared: Adventure · Indie

New kind of adventure
Shared: Indie · Adventure · Early Access

Wobbly Life
Shared: Adventure · Indie · Early Access

Observation
Shared: Adventure · Indie · Lovecraftian

Chants of Sennaar
Shared: Adventure · Indie

There Is No Game: Wrong Dimension
Shared: Indie · Adventure

SUNLESS SEA
Shared: Lovecraftian · Adventure · Indie

Terra Incognita Chapter One: The Descendant
Shared: Indie · Adventure · Early Access

To the Moon
Shared: Indie · Adventure

Notes of Soul
Shared: Adventure · Indie · Early Access

Journey
Shared: Adventure · Indie

Florence
Shared: Indie · Adventure

The Room Two
Shared: Adventure · Indie · Lovecraftian