Definitely felt over worked! I apprciated the tutorial which makes it easier to follow how to play.
I made it to day 10 and unlocked everything and maxed the campfire. If you continue this I would add more upgrades and more things that you have to do with maybe upgrades that eventually automate things. Would be interesting to have like random events like a big blizzard or something where the warmth drops faster for vilagers.
Overall I thought it was well polished and really meet a lot of the theme and prerequisite!