Really liked the idea, although I find it too slow paced (maybe intented, I know) the music is great and fits really well with the collapse of humanity. I've yet to finish it, but good game overall, nice work!
Any particular part that was slow? Outer system nav felt a bit slow to me, but it was awkward to fix that without making inner system nav so fast you couldn’t course correct out of a collision with the sun. I probably just need to add a fast-forward button.