Sky Stack

Time each tap to stack a moving block. The overlap stays; the overhang falls. Keep your tower wide as you climb. Three perfect placements in a row restore a little width.

Take on six challenges across meadows, dunes, an alpine lake, city lights, auroras and orbit. Climb 10 to 20 floors to finish each challenge and open the next world. Earn three medals per challenge: finish, meet the perfect-placement target, and finish with at least half your starting width. Medals carry over between completed attempts, so you can return for the ones you missed.

Choose Endless to beat your own height record as the pace rises and the world changes every ten floors.

Play with touch, mouse or keyboard, with pause, optional sound and instant retries. Medals, unlocked challenges and your endless best are saved in this browser on this device when storage is available.