Fun concept. Seemed pretty easy to just build triangles of residential areas around commercial areas, but then I got stuck when I tried to build factories and didn't have enough money to end my turn. I tried again, but then I started my next city with only the 50 cents I had before so I couldn't do anything. Restarted the game and did a lot better next time. This was pretty fun once I got the hang of it. If you wanted to expand it later, maybe add more tile types or maps with specific goals? All in all, good job.