OK, end of Day 1, here is the progress so far:

Random generation of planets, each with their own gravity variables, plus some enemies and friendlies. They all respond to physics and orders.

This is very similar to the final look I want it to have. I am not an artist, so will keep the art as minimalist as possible, just need to beautify it a bit (colour palette, etc).

Can’t wait to show this to you guys tomorrow!