Games like Astral Domine
Games like Astral Domine include Firewatch, The Talos Principle, What Remains of Edith Finch, A Story About My Uncle, and Obduction. We matched them by the tags players give Astral Domine on Steam (Adventure, Indie, Puzzle, First-Person, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Atmospheric · First-Person

The Talos Principle
Shared: Puzzle · First-Person · Atmospheric

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

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

Obduction
Shared: Adventure · Indie · Puzzle

The Witness
Shared: Puzzle · First-Person · Indie

Stray
Shared: Adventure · Atmospheric · Singleplayer

The Room
Shared: Puzzle · Adventure · Atmospheric

The Beginner's Guide
Shared: Indie · First-Person · Atmospheric

Chants of Sennaar
Shared: Adventure · Puzzle · Indie

ROUTINE
Shared: Adventure · Singleplayer · Sci-fi

Poppy Playtime
Shared: Puzzle · Singleplayer · First-Person

Antichamber
Shared: Indie · Puzzle · First-Person

Outer Wilds
Shared: Adventure · Puzzle · Atmospheric

Deliver Us The Moon
Shared: Adventure · Indie · Atmospheric

Cradle
Shared: Adventure · Indie · First-Person

Riven
Shared: Adventure · Puzzle · First-Person

Garten of Banban
Shared: VR · First-Person · Singleplayer

Little Nightmares
Shared: Adventure · Atmospheric · Indie

Layers of Fear (2016)
Shared: Atmospheric · First-Person · Indie

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

The Last Campfire
Shared: Adventure · Puzzle · Indie

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

Scanner Sombre
Shared: Adventure · Atmospheric · Indie