I love this! My first time playing I made it to 22 days on my fourth run. I know this is a class project and maybe you're not planning on expanding it at all, but if you do, diversifying the later game would be cool. Some ideas: More upgrades (or breaking the existing ones into more tiers), a way to earn back the insurance, and occasionally putting seeds toward quota. On the other hand, please don't do that, I don't need to get more sucked into this...