I’m certainly having a ball with Universe in a Sandbox.
The game when you first load the solar system :
or, you can load up the Death Star orbiting the moon of Endor :
Or for extra silliness, a bunch of low mass objects. See what I mean about “Having a ball” ?
My boy, of course, loves when I abuse the simulation. You abuse it by speeding up time a high enough factor – if it goes too fast, the math starts to break down, and planets get ejected from their orbits due to math errors. This is great fun, as I tell him he’s doing things wrong, and then Whhhheheeeeee ! – Venus gets EJECTED !
After spending about a buck, I have managed to craft my first game badge on Steam – for UIAS. And now it’s proudly (?) displayed on my Steam profile. But you know what ? The most important thing about this game for me is that my boy and I can talk about something space related. Keeping that conversation alive is critical and worth it.
Not that my daughter cares, but you take what you can get.