Play Stack Online Free

About Stack

Stack is a one-button game about precision. A block slides back and forth above your tower; tap and it drops. Any overhang is sliced off and falls away, so the next block is narrower — and the tower keeps rising until your block is a sliver and one late tap ends the run.

Land a block perfectly and nothing is lost; land several perfectly in a row and the block starts growing back, with the colour shifting through a gradient as you climb. It is the cleanest possible expression of the timing game, and it runs in a browser tab in a few kilobytes.

How to play Stack

Drop the block

Click, tap or press space

Restart

Click after the run ends

1. A block slides horizontally above the tower. Press to drop it.
2. Overhanging parts are cut off; the remaining width carries to the next block.
3. Perfect landings keep the full width — and a streak of them widens the block again.
4. The run ends when a block misses the tower entirely. Height is your score.

Stack tips

• Aim for the exact centre of the block's travel, not the moment it looks aligned — there is a small input delay to account for.
• Perfect streaks are the only way to recover width. Once you're narrow, stop rushing and take the timing seriously.
• The block speeds up as you climb; the rhythm you learned at level 10 is wrong at level 40.
• Watch the shadow rather than the block when it gets thin.

Stack — questions