Euclidea is a FUN & CHALLENGING Way to Create Euclidian Constructions! 127 Levels: from very easy to really hard. 10 Innovative Tools. "Explore" Mode and Hints. Easily Drag, Zoom & Pan. New levels are unlocked as you solve the previous ones. You can complete the whole game only if you earn all the stars. But you can buy an IAP that removes this restriction.