I really enjoyed this idle game. I thought that the art style was cozy and fun, and I enjoyed the main music loop, though it might be stuck in my head now for a bit. I also really liked the touch of having little unlock pop-ups at the start as new options became available.
Two notes I had:
1. Receiving the store before the farm unlock was a little confusing as a player. I had a store placed down that went to full on its bar, which I only later realized meant that it had no food to sell. Luckily, I figured that out pretty quickly, but it was confusing at first.
2. The prices in bottom right of the unbought blocks were sometimes cut off by buildings I already owned. You might want to adjust the price placement to the top left corner to avoid the prices being cutoff visually.
Overall, I really enjoyed playing your game! I got pretty far and built 4 castles, but I was ready to keep going down the whole progression of iron upgrades. I might come back to this later to satisfy my brain itch for progress. Thanks for making such a cool game!