Games like Ring Miner
Games like Ring Miner include SpaceEngine, Kerbal Space Program, X4: Foundations, Elite Dangerous, and No Man's Sky. We matched them by the tags players give Ring Miner on Steam (Simulation, Open World, Space Sim, Sci-fi, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

SpaceEngine
Shared: Open World · Sci-fi · Space Sim

Kerbal Space Program
Shared: Simulation · Space Sim · Physics

X4: Foundations
Shared: Simulation · Open World · Space Sim

Elite Dangerous
Shared: Space Sim · Open World · Simulation

No Man's Sky
Shared: Open World · Sci-fi · Procedural Generation

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

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Open World · Flight

BeamNG.drive
Shared: Simulation · Open World · Physics

Universe Sandbox
Shared: Simulation · Space Sim · Physics

Avorion
Shared: Space Sim · Open World · Flight

Goat Simulator
Shared: Simulation · Open World · Physics

Starpoint Gemini 2
Shared: Simulation · Open World · Sci-fi

X-Plane 11
Shared: Simulation · Open World · Flight

Dyson Sphere Program
Shared: Open World · Simulation · Sci-fi

EVE Online
Shared: Space Sim · Open World · Simulation

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

SpaceBourne 2
Shared: Space Sim · Open World · Flight

Starbase
Shared: Open World · Simulation · Space Sim

PULSAR: Lost Colony
Shared: Open World · Space Sim · Simulation

Astrox Imperium
Shared: Simulation · Space Sim · Open World

Space Engineers
Shared: Simulation · Open World · Physics

Gold Mining Simulator
Shared: Simulation · Open World · Mining

V: Rings of Saturn
Shared: Sci-fi · Space Sim · Physics

Rebel Galaxy
Shared: Open World · Sci-fi · Space Sim