You've got a pretty polished game there! I think the balancing could be improved a bit, it's really easy to have just a few regions that generate resources and then unlock regions from there. I feel like npcs should be able to cross boundaries, but that limitation might be due to the scope of the game. I also think you've did a good job on sound design, even zooming in changes the ambient sounds. Maybe some of the assets are a bit dark and difficult to distinguish from the background