Attack of the Squares

Defend your crystals against the squares!

Crystals spawn in turrets that you can activate by touching. Combine turrets with the same number to upgrade. Dead crystals will reactivate after a certain amount of time. As the game progresses, more crystals will activate.

E to switch weapons

Right click on turrets to lock them in place. (you can build walls of turrets)

Hold spawn to create a magnet, which helps to combine turrets and place them where you want.