Stack Up

Stack Up is a one-tap stacking game. Drop the sliding block onto the tower and build as high as you can.

How to play

• A block slides left and right. Tap to drop it.
• Any part that hangs over the edge is cut off, so the tower gets narrower.
• Line it up almost perfectly to keep the full width.
• Land three perfect drops in a row and your block grows back.
• Miss completely and the game is over.

Controls

• Phone: tap the screen
• Computer: click, or press Space or Enter

Features

• One-button gameplay, easy to learn in seconds
• The block gets faster the higher you go
• Your best score is saved on your device
• Share button to challenge your friends
• Free to play in your browser, no download needed

How high can you stack? Post your score in the comments!