Really fun resource-management / city building game! I could definitely see this as a published mobile game. The art style and pixel art are very good at conveying what each structure does. I appreciate the constraints you put on building structures, which makes optimizing the organization of the city (especially roads early-on) really key.
On my first run, I overlooked the tooltips, so I got confused on why I couldn't place certain late-game structures and not others. But after looking at the tooltips, everything was self-explanatory.
Overall, this game seems super polished to me, and I had a lot of fun with it (I played through it at least 5 times)! Great work!