Polyhedra is a physics-based action game in which you have to generate shapes and fill more than 66% of the screen. Touch the screen to make a shape and release it when you want to drop the shape at bottom of the screen. To form a bigger shape, you have to keep it pressing. The game will be end when you run out of shapes. Drop shapes before your enemies hit it, otherwise you will lost that shape and have one less shape to complete the level. Each dropping shape give you points. You will get bonus points based on how much of the screen you had filled, how many shapes you had left and how fast you had completed the level when you complete a level.
You can rotate the screen at any angle to control the shapes. Just double tap on the screen to pause the game. This game offers several Zones with its own shape. You have to complete at least 9 levels from the Zone to unlock a Zone. There is a Toy Box mode where you can generate any shape you want without worry of enemies. Tap the icon in the panel and make a shape as normal. You can make up to 20 shapes and also delete them, move them around and even clear the screen to start it again.