A free app for Android, by Block City Fun.

In Block City Fun Diamond, you will create a whole city from the ground up. You will have the opportunity to choose from a variety of different building themes, such as a school, a police station, a hospital, or even a restaurant. You can build whatever you want in this creative sandbox game.

The sandbox world will allow you to build and destroy blocks, and get resources. This will enable you to create a wide variety of different tools, blocks, and weapons to help you survive. You will have the opportunity to build your city using your creativity and imagination.