Space Engine is a free space travel simulator. You can travel through the physically correct and beautifully rendered Solar System, the Milky Way and more distant galaxies. The Space Engine contains all known areas of space, reproduced with physical accuracy.

Regions that have not yet been researched, on the other hand, are generated procedurally so as not to destroy the impressions of exploration. The Smulator allows the player to land on any of the planets, moons or asteroids and observe foreign worlds in the form of 3D models. Real-time orbital and shadow movements of objects are calculated, and nebulae can be viewed as volumetric models.

In addition, an atmosphere model has been developed for the Earth. In the simulator the player can move freely using the WSAD keys or choose the object he wants to move and turn on the autopilot with the G key. Many modifications and additional materials have been created for the simulator, which can be found in the users' forum.