If you are looking to explore the universe without a cost, you must look to the "Legacy" versions. The Status of SpaceEngine Downloads
Start by visiting familiar places like Mars, Jupiter, or Saturn to see the realistic textures.
To help find the right version, tell me about your (CPU, GPU, RAM), your budget , and if you plan to use a VR headset . Share public link
A: Yes, you can. For the standard version, non-commercial use is generally allowed. If you plan to use SpaceEngine for commercial purposes (like selling rendered footage), you will need to purchase the PRO DLC on Steam. The PRO version includes a license that explicitly allows for commercial usage.