Games like 宇宙探索
Games like 宇宙探索 include Elite Dangerous, SpaceEngine, X4: Foundations, Stellaris, and Kerbal Space Program. We matched them by the tags players give 宇宙探索 on Steam (Casual, Simulation, Adventure, Strategy, and Space Sim): closest matches first, and among equally close ones the better-known games.

Elite Dangerous
Shared: Space Sim · Simulation · Space

SpaceEngine
Shared: Casual · Sci-fi · Space Sim

X4: Foundations
Shared: Simulation · Space · Space Sim

Stellaris
Shared: Strategy · Space · Simulation

Kerbal Space Program
Shared: Simulation · Space · Space Sim

Hardspace: Shipbreaker
Shared: Simulation · Space · Sci-fi

SPORE™
Shared: Simulation · Casual · Space

EVE Online
Shared: Space Sim · Adventure · Simulation

Universe Sandbox
Shared: Simulation · Space Sim · Space

X Rebirth
Shared: Simulation · Space · Space Sim

FTL: Faster Than Light
Shared: Strategy · Space · Sci-fi

Dyson Sphere Program
Shared: Simulation · Space · Sci-fi

Space Rangers HD: A War Apart
Shared: Adventure · Strategy · Simulation

Between the Stars
Shared: Simulation · Space · Strategy

Astrox Imperium
Shared: Simulation · Space · Early Access

SPORE™ Galactic Adventures
Shared: Simulation · Adventure · Space

Empyrion - Galactic Survival
Shared: Simulation · Space · Space Sim

Nimbatus - The Space Drone Constructor
Shared: Strategy · Adventure · Space Sim

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Strategy · Space

Rebel Galaxy
Shared: Space · Adventure · Sci-fi

Celestial Command
Shared: Simulation · Strategy · Space

Plague Inc: Evolved
Shared: Simulation · Strategy · Casual

Mini Motorways
Shared: Simulation · Casual · Strategy

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