I thoroughly enjoyed this. Ended up playing a few times, just figuring out the flow of things. Then on the third attempt overspent my fuel without thinking about and sabotaged myself.
Feedback-wise, I would probably mostly echo Denji's sentiments. Only thing I might add is I didn't realize that the upgrades (including the first one) had to be paid for, and that I should target certain resources in a given section. Even though now seeing it, the UI is all there so the only other thing you probably could have done was page by page instructions on each mechanic. But I also really appreciated that it was quick to start playing, so it's a trade-off.