The project is being developed by one person since 2005 (approximately 15 years). Please SUPPORT the author (He really needs financial support) and leave a review, if you WANT to get all this functionality in the future - under the spoiler. I think you will be very interesting!

Planned functionality:

http://forum.spaceengine.org/viewtopic.php?f=6&t=72

Project site:

http://spaceengine.org/

The page on the site Steam:

https://store.steampowered.com/app/314650/SpaceEngine/