
You receive login credentials to an account that already owns this game. The game is not added to your own library and the account may have usage conditions (e.g. offline mode). If you want a key to redeem on your own account, pick a non-account edition instead.
SpaceEngine is a 1:1 scale science-based Universe simulator, featuring billions upon billions of galaxies, nebulae, stars, and planets, all shown at their full real-world scale. Explore Earth and our neighboring worlds in the Solar System, orbit a black hole in a galaxy billions of light-years away, or visit anything in between seamlessly, with no transitions.
All of time and space are yours to explore – cruise between the stars at a million times the speed of light, and accelerate time to watch the orbital motions of a thousand worlds play out before your eyes. Every planet you encounter in your journey will feature procedural 3D terrain with detailed textures. Everything you see in the sky – stars and galaxies, planets and moons, asteroids and comets, black holes and neutron stars, star clusters and nebulae – are yours to explore at the press of a button.
Spacecraft with Newtonian physics and pilot-assist autopilot features (in early development but fully usable) are yours to fly anywhere in the universe in the Flight Simulator mode. SpaceEngine is also very friendly for creators of mods and add-ons – create your own planets, star systems, even galaxies, import your own spacecraft models, create custom GUI skins, and more, all easily sharable with others.
With SpaceEngine, the possibilities are limitless.
SpaceEngine Planetarium capabilities:
Astronomy All types of celestial objects are represented: galaxies, nebulae, stars and star clusters, planets and moons, comets and asteroids. Known celestial objects are represented using data from catalogs: galaxies (NGC/IC), stars (HIPPARCOS), star clusters, nebulae, and planets (Solar System and known extrasolar planets). Regions of space not yet cataloged feature procedurally generated objects: galaxies, stars, star clusters, nebulae, and planetary systems.…
Complete checkout — your code lands in your inbox in ~30 seconds, and is always available under Orders in your Gameplug account.
In the Steam app: "+ Add a Game" (bottom left) → "Activate a Product on Steam..." (or use the web link below).
Paste the key (format XXXXX-XXXXX-XXXXX) and accept the Steam Subscriber Agreement.
The game joins your library permanently — install it on any machine you sign in to.
Code not working? Contact support — confirmed-invalid codes are replaced or refunded.