Games like End Gate - The Last Passenger
Games like End Gate - The Last Passenger include Outer Wilds, No Man's Sky, Starfield, Elite Dangerous, and Kerbal Space Program 2. We matched them by the tags players give End Gate - The Last Passenger on Steam (Exploration, Space, Open World, Mystery, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Exploration · Space · Mystery

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

Starfield
Shared: Space · Open World · Exploration

Elite Dangerous
Shared: Space · Exploration · Open World

Kerbal Space Program 2
Shared: Space · Exploration · Open World

Kerbal Space Program
Shared: Space · Physics · Open World

SPORE™
Shared: Open World · Exploration · Space

The Witness
Shared: Exploration · Open World · Puzzle

Blue Prince
Shared: Exploration · Mystery · Puzzle

The Talos Principle 2
Shared: Exploration · Puzzle · Sci-fi

STAR WARS Jedi: Fallen Order™
Shared: Open World · Exploration · Sci-fi

Starcom: Unknown Space
Shared: Exploration · Space · Open World

The Painscreek Killings
Shared: Exploration · Mystery · Investigation

X4: Foundations
Shared: Space · Open World · Exploration

ASTRONEER
Shared: Open World · Space · Exploration

The Talos Principle
Shared: Puzzle · Sci-fi · Exploration

V: Rings of Saturn
Shared: Space · Exploration · Sci-fi

Strange Horticulture
Shared: Mystery · Puzzle · Exploration

EVE Online
Shared: Exploration · Open World · Space

Murders on the Yangtze River
Shared: Exploration · Puzzle · Mystery

The Swapper
Shared: Space · Sci-fi · Puzzle

Rodina
Shared: Exploration · Space · Open World

Portal
Shared: Puzzle · Sci-fi · 3D Platformer

Deliver Us The Moon
Shared: Space · Sci-fi · Mystery