Games like Rogue System
Games like Rogue System include Universe Sandbox, Kerbal Space Program, Elite Dangerous, X4: Foundations, and Spaceflight Simulator. We matched them by the tags players give Rogue System on Steam (Simulation, Space Sim, Space, and Realistic): closest matches first, and among equally close ones the better-known games.
Universe Sandbox
Shared: Simulation · Space · Space Sim
Kerbal Space Program
Shared: Simulation · Space · Space Sim
Elite Dangerous
Shared: Space Sim · Space · Simulation
X4: Foundations
Shared: Simulation · Space · Space Sim
Spaceflight Simulator
Shared: Space Sim · Simulation · Space
Kerbal Space Program 2
Shared: Space · Simulation · Space Sim
EVE Online
Shared: Space Sim · Simulation · Space
Empyrion - Galactic Survival
Shared: Simulation · Space · Space Sim
Reentry - A Space Flight Simulator
Shared: Simulation · Space · Space Sim
SpaceEngine
Shared: Space · Space Sim · Realistic
Space Engineers
Shared: Space · Simulation · Space Sim
Hardspace: Shipbreaker
Shared: Simulation · Space · Space Sim
X Rebirth
Shared: Simulation · Space · Space Sim
BeamNG.drive
Shared: Simulation · Realistic
Children of a Dead Earth
Shared: Simulation · Space · Realistic
Dyson Sphere Program
Shared: Space · Simulation · Space Sim
Tin Can
Shared: Simulation · Space · Realistic
Take On Mars
Shared: Simulation · Space · Space Sim
Euro Truck Simulator 2
Shared: Simulation · Realistic
PULSAR: Lost Colony
Shared: Space Sim · Simulation · Space
Solar Expanse - Space Exploration Manager
Shared: Simulation · Space · Realistic
Starpoint Gemini 2
Shared: Simulation · Space · Space Sim
Star Trucker
Shared: Space Sim · Space · Simulation
Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Realistic