A pretty solid game for the amount of time spent developing it. The only real "bug" I was able to identify was the tether sometimes going into and through the ship. All mechanics were well implemented, though the single qualm I have is the green resource is certainly not worth collecting... Unless it's worth more, in which case I did not notice it :P
I do enjoy that every upgrade increased every attribute a little, with some upgrades increasing a specific attribute significantly, though I only noticed the tether slowly being upgraded close to the end of the game. (I found the meta was to collect the packs of 6 loose 6-valued minerals scattered around - very cash money)
It's a nice little space simulation, and I would LOVE to see this get expanded in the future. It'd be nice to have more space resource management games out there.
Well done!