Sky Stack 3D

How to play

A moving block slides back and forth — drop it exactly on the tower. Overhang is trimmed away, so sloppy drops shrink your tower until you miss.

Controls

• Drop the block: Space, Down arrow, or click / tap the game area
• Blocks alternate sliding left–right and front–back.
• Each placed block is +1. Blocks speed up as the tower grows.
• A block with almost no overlap misses and ends the game.