That was fun! The sepia + blue palette is striking; it fits well with the cool art. The music, unincorporated as it is, is quite somber and nostalgic.
I liked how chess-like the building arrangement mechanics were; it's very fitting with the setting! I wish there were more explicit instructions for each of the building's rules, but I figured out most of them through trial-and-error... except the square field-looking piece, I'm not sure about that one.
I'm not sure how this would be implemented, but I wish the villager movement wasn't random. It makes some of the levels feel especially RNG-based as far as achieving ideal results.
Great work!