Similarity
Games like Ostranauts
Flight, Space Sim, Sandbox, Difficult, Survival, Space, Exploration, Life Sim, Procedural Generation, Trading, Immersive Sim, Roguelike, Top-Down, Spaceships, Cyberpunk, Building
X4: Foundations
Action, Simulation, Strategy
No Man's Sky
Action, Adventure
Elite Dangerous
Action, Adventure, Massively Multiplayer, RPG
Starminer
Action, Indie, RPG, Simulation
Space Engineers 2
Action, Indie, Simulation, Strategy
Kerbal Space Program
Indie, Simulation
SpaceEngine
Casual, Indie, Simulation, Early Access
Space Engineers
Action, Indie, Simulation, Strategy
Oxygen Not Included
Indie, Simulation
Breathedge 2
Action, RPG, Simulation, Early Access
EVE Online
Action, Massively Multiplayer, RPG, Strategy
Approximately Up
Adventure, Indie, Simulation
Avorion
Action, Indie, Simulation
VEIN
Action, RPG, Simulation, Early Access
Space Haven
Indie, RPG, Simulation, Strategy
Star Valor
Action, Indie, RPG