Celestia

by Celestia Development Team

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 co

Released Jun 23, 2026 · 80% positive of 21 Steam reviews

Tags: Simulation, Space Sim, Exploration, 3D, Education, Science, Space, Moddable

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