That was fantastic! I'm very impressed by all you managed to accomplish in one month!
The interactive tutorial is a particularly nice touch and a real credit to the game. Its awesome that you managed to include an opening cutscene to set the mood of the game. Gathering resources and grinding them down was fun, but its even more fun to build a drill and obtain resources automatically! Took me a minute to find out the printer is able to access resources stored in the locker, it might have been good to state that explicitly in the tutorial.
On the supply drop mission I started walking towards the blue flag and almost missed the crate, which was a fair distance away (tense moment since I was starting to run very low on food). Speaking of movement, a minor gripe I had with the game was how painfully slow the character moves, I feel you could have easily doubled it! Then again, perhaps that was intentional in order to achieve that floaty moon-gravity feeling.
I really liked the graphics, especially your use of textures for the terrain (though the tiling was a tiny bit noticeable). There were a few places where smooth shading should have been used instead of flat shading, but in general the game had a nice low poly look to it! The music added to the atmosphere but had a slightly jarring transition on looping. Other than that, I really can't fault the game, great job!