Wow, I could play this forever. The environment is so well-crafted for just 48 hours! You made good use of ambient effects to fill it out. And the sound effects added a lot of life to the little guys!
I love the idea of being incredibly vulnerable as the player, and relying on a horde of "serfs" to carry out combat. It really adds a unique challenge. Awesome job! I also thought that having the keys require a certain number of serfs to carry them was really smart.
Edit: Watched your devlog. I remember really enjoying the music as I played through, but I didn't fully appreciate the progression that the sound designer put in. That's cool!