Games like MirrorMoon EP
Games like MirrorMoon EP include Outer Wilds, No Man's Sky, Antichamber, The Witness, and NaissanceE. We matched them by the tags players give MirrorMoon EP on Steam (Indie, Exploration, Puzzle, Abstract, and Adventure): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Exploration · Space · Adventure

No Man's Sky
Shared: Exploration · Space · Open World

Antichamber
Shared: Indie · Puzzle · Exploration

The Witness
Shared: Exploration · Puzzle · Indie

NaissanceE
Shared: Indie · Exploration · Abstract

Firewatch
Shared: Adventure · Exploration · Indie

Starfield
Shared: Space · Exploration · Open World

Obduction
Shared: Exploration · Puzzle · Indie

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

Manifold Garden
Shared: Puzzle · Abstract · Exploration

Kairo
Shared: Exploration · Indie · Puzzle

Slime Rancher
Shared: Exploration · Adventure · First-Person

Cradle
Shared: Indie · Adventure · Exploration

Valley
Shared: Exploration · Adventure · Indie

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

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

Deliver Us The Moon
Shared: Indie · Adventure · Space

Fallout 4
Shared: Exploration · Adventure · Open World

COCOON
Shared: Exploration · Puzzle · Indie

Viewfinder
Shared: Puzzle · Abstract · First-Person

Elite Dangerous
Shared: Exploration · Space · Open World

INFRA
Shared: Exploration · Puzzle · Indie

Stray
Shared: Adventure · Exploration · Puzzle

Moncage
Shared: Indie · Puzzle · Adventure