Games like Soul Axiom
Games like Soul Axiom include Stray, Outer Wilds, Firewatch, The Talos Principle, and Cradle. We matched them by the tags players give Soul Axiom on Steam (Adventure, Indie, Sci-fi, Cyberpunk, and Puzzle): closest matches first, and among equally close ones the better-known games.

Stray
Shared: Adventure · Cyberpunk · Exploration

Outer Wilds
Shared: Adventure · Exploration · Mystery

Firewatch
Shared: Adventure · Atmospheric · Mystery

The Talos Principle
Shared: Puzzle · Sci-fi · First-Person

Cradle
Shared: Adventure · Indie · Sci-fi

What Remains of Edith Finch
Shared: Adventure · Mystery · Atmospheric

Blue Prince
Shared: Puzzle · Exploration · Mystery

The Witness
Shared: Puzzle · Exploration · Indie

Obduction
Shared: Adventure · Indie · Puzzle

Deliver Us The Moon
Shared: Adventure · Indie · Sci-fi

The Room
Shared: Puzzle · Adventure · Mystery

Observation
Shared: Adventure · Indie · Sci-fi

Antichamber
Shared: Indie · Puzzle · First-Person

A Story About My Uncle
Shared: Adventure · Indie · First-Person

INFRA
Shared: Puzzle · Adventure · Exploration

Chants of Sennaar
Shared: Adventure · Indie · Puzzle

Return of the Obra Dinn
Shared: Puzzle · Indie · Mystery

The Room Three
Shared: Adventure · Puzzle · Indie

Call of the Sea
Shared: Adventure · Puzzle · Indie

Cyberpunk 2077
Shared: Cyberpunk · Sci-fi · First-Person

The Room Two
Shared: Puzzle · Adventure · Mystery

COCOON
Shared: Adventure · Indie · Puzzle

Twelve Minutes
Shared: Adventure · Indie · Puzzle

No Man's Sky
Shared: Sci-fi · Exploration · Adventure