A free program for Android, by SkySoft Studio.

The Tower City Builder is a free, fun, and challenging game. You have to build the tallest tower in the world. You will be amazed at the variety of building blocks and resources that you can use. Your city will be filled with skyscrapers that will be visible from the sky.

How to play:

Use the left and right arrow keys to place blocks. You can only place blocks on the bottom, top, left, and right. The game will pause when you click on the pause button. You can click on the blocks and resources to build your tower. When you are finished, you can click on the submit button to let your friends see your work.