I've had this for a long time but I gave up on it. Trying again on new PC, same damn problems.
I plop down the Milky Way, then add a star and a planet.
First problem: I can't zoom in more than 1.65 light years.
Second problem: I save and load it up again, and it encounters and error and has to delete the galaxy.
I mean, what's up with this? Is Universe Sandbox only good for single systems? I have never gotten it to work in 2 years.