Diamond City is a free Android game developed by MTAG PUBLISHING LTD. It is a management and idle game where you start with a small town and develop it into a big city. The aim is to create a futuristic metropolis and become a real tycoon.

The gameplay involves developing the transportation system, building new amenities, and upgrading them. You can also open up areas for new buildings and optimize the flow of visitors to your city. You need to design marketing campaigns to attract new guests to your city and increase your income. The game offers an extensive list of interesting tasks and big decisions to make. The stylized 3D graphics are impressive and the animation for each level of buildings is awesome.