Games like Galactic Protection Squad | Episode 1
Games like Galactic Protection Squad | Episode 1 include Deliver Us The Moon, To the Moon, Half-Life: Alyx, Outer Wilds, and Servant of the Lake. We matched them by the tags players give Galactic Protection Squad | Episode 1 on Steam (Adventure, Indie, Education, Story Rich, and Sci-fi): closest matches first, and among equally close ones the better-known games.

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

To the Moon
Shared: Indie · Story Rich · Adventure

Half-Life: Alyx
Shared: VR · Story Rich · Sci-fi

Outer Wilds
Shared: Adventure · Story Rich · Indie

Servant of the Lake
Shared: Adventure · Indie · Story Rich

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

Observation
Shared: Adventure · Indie · Sci-fi

Firewatch
Shared: Adventure · Story Rich · Indie

Underground Blossom
Shared: Adventure · Indie · Escape Room

Virtual Virtual Reality
Shared: Adventure · Indie · VR

Samsara Room
Shared: Indie · Adventure · Escape Room

Rick and Morty: Virtual Rick-ality
Shared: Adventure · VR · Indie

OneShot
Shared: Indie · Story Rich · Adventure

Sally Face - Episode One
Shared: Indie · Story Rich · Adventure

The Fall
Shared: Adventure · Indie · Sci-fi

Tacoma
Shared: Adventure · Indie · Story Rich

Obduction
Shared: Adventure · Indie · VR

Florence
Shared: Indie · Adventure · Story Rich

A Story About My Uncle
Shared: Adventure · Indie · Story Rich

Deponia
Shared: Adventure · Indie · Story Rich

Cradle
Shared: Adventure · Indie · Sci-fi

Broken Age
Shared: Adventure · Indie · Story Rich

Moss VR
Shared: Adventure · VR · Story Rich

Red Matter
Shared: Adventure · VR · Sci-fi