This is cool. I especially appreciate the compact binary. So many of these entries are tiny games with tiny assets and huge bloated binaries.
My biggest issue was with unit path finding. I ended up in several situations where peasants would just pile up behind a structure or around a group of structures and not be able to find their way to wherever they were trying to go, usually I'd have to demolish whatever was in their way to get them unstuck. I also saw them spending a lot of time walking very slowly along the edge of a river doing something. It seemed like they were repeatedly building a boat, destroying it, moving to the next dry tile the bordered the water, building another boat, etc. Sometimes they'd actually get in the boat and head off, other times they'd eventually wander away over land.
I would have liked more insight into how the trading worked. I think the peasants were taking food and gems to the neighboring kingdoms and exchanging them for gold but it was unclear. Also I'm not sure where the peasants came from. Maybe there was one for each house? There seemed to be more of them as the game progressed.