Create a mighty stack of blocks in Tower Builder. The icon in the upper left corner of the screen shows how many blocks need to be placed and what shapes they will be. Left Click and hold to see a preview of the shape. Drag your mouse to where you want to place the block. Once you're ready to drop it into place, release.

Repeat this pattern until you have finished placing all blocks. The tower will have to stand steady for three seconds. If even one block falls, then you'll need to start over!

Some levels will already have blocks placed on the platform, so you'll need to build around them with the remaining blocks! Later levels will have more than one platform for you to stack blocks on top of.

Feel free to get experimental as you continue playing Tower Builder. If you make a mistake, all you have to do is press the restart button in the upper right corner. With such a small penalty, you have a lot of room to think outside of the box.