This was a strange and interesting experimental toy. I liked how it makes almost music even though it is just orbital bounces. It certainly is interesting, though I have a hard time imagining what else it could do if expanded upon.
I was a bit sad the web version cannot add planets. I think post jam a good update would be to add buttons or another input to add/remove them for the web version. Hotkeys would be great for this!
It reminds me a bit of an old game called SimTunes, where there wasn't any goal, instead the players just make musical notes and random artsy things. Perhaps if there was a way to set spawn points for the planets so the simulation could be reset reliably, and then a way to export and share the simulations with other users, we could make similar shared experimental music experiences.
Very cool idea here!