
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…
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.