I am sort of new to Universe Sandbox so maybe my suggestions are simply based on ineptitude. However, here's some thoughts.
1. The moving around of objects is a bit counter-intuitive, especially in relation to relative height compared to a system's "horizon."
2. Textures are a bit weird in the way they are assigned to planets. When I tried separating my textures into neatly organized folders (as opposed having them in one big place) and then typing the name into the texture field (with <name of folder>/Filename.whatever), the game would load a texture, but forget it on a next reopening. I'd suggest an explorer type of dialog to open, so even if textures are forgotten damage could be repaired with just a few clicks. I'm sure such a feature can make customize options even greater.
3. Orbit parent is getting fixed right
![Tongue :P](http://universesandbox.com/forum/Smileys/default/tongue.gif)
4. From what I've noticed about the game, it's not very optimized. Truth to be told, there's a hell lot of gravity math probably bogging down the CPU, but graphic-wise the game is not spectacular (I'm not talking about the introduction of unrealistic stuff). Planets are not very spherical, dust=slow motion, planets do not cast shadows, etc., etc. Or maybe, again, it is simply me who doesn't know how to tweak it. I know the game is going to get a visual buff with the new version, but I was curious to know whether it would be simply a buff, or perhaps a rework because my average, soon to be below average machine would like really much to play the game as it's meant to be.
EDIT: NI think I answered myself that, so sorry for it
![Smiley :)](http://universesandbox.com/forum/Smileys/default/smiley.gif)
"This is a full rewrite of Universe Sandbox in a new 3D engine." says Dan here:
http://universesandbox.com/forum/index.php/topic,5865.0.htmlAnyway, I apologize, if some of the things have already been said. I'm a bit of a noob and haven't really lurked around the forums for too long (a thing that's probably going to change!
![Tongue :P](http://universesandbox.com/forum/Smileys/default/tongue.gif)
), but from what I've seen from the game/experience Ubox and it's community are one of the most relaxing things after a hard day
![Smiley :)](http://universesandbox.com/forum/Smileys/default/smiley.gif)