I like the game, it's a simple numbers go up style and I enjoy playing those things. The UI needs work though, the current way to select planets is not very useful. The gameplay loop almost immediately boils down to "click around every planet in your system and 10/100/1000x build random stuff which has a '-' right now. You can go for a 'slower' scale of increase but make the decisions be more strategic.
Anyway, it's a jam game so often we have to make a lot of compromises to finish something quickly. It's a good entry, and I think going for a 3D universe was ambitious and well executed. Good job.