Celestia
Celestia Development Team · 2026 · Simulation, Space Sim, Exploration, 3D, Education
PC
Best price
Free
This game is free to play.
About Celestia
A real-time 3D space simulator and interactive planetarium. Travel to any planet, moon, star, or galaxy and view it from any point in space and time. Accelerate time, land on alien worlds, and expand the universe with community-made add-ons.