How to play
Whatever hangs over the edge when a block lands gets sliced off, and the following block shrinks to match what survived. Sloppy drops make the tower thinner and thinner, and a block that misses completely ends the game.
- Press Play and a block begins gliding from side to side above the tower.
- Release it with a tap, a click or Space.
- Any overhang breaks off, and the next block comes in at the trimmed width.
- Line a block up almost exactly with the one underneath for a perfect drop: nothing is trimmed, and it locks neatly into position.
- You score a point per block, and the sliding speeds up gradually as you climb.
Controls
- Drop: a tap, a click or Space.
- Pause: the button or P.
- Click the game once before you use Space, so the key drops blocks and doesn't scroll this page.
Tips
- Keep your eyes on the top edge of the tower rather than the moving block, and drop when the two edges meet.
- The blocks slide at a steady speed, so find a rhythm and drop on the beat.
- String together three perfect drops and the block widens slightly, which lets a skinny tower recover.
- A key is quicker than a mouse click. On a computer, use Space.
FAQ
Is the stack game free?
Yes. No sign-up, no download, and as many towers as you want.
What counts as a perfect drop?
Landing within 3% of the first block's width of a perfect line-up. Nothing gets trimmed, and the block clicks into place.
Do the blocks speed up?
Gradually, block by block, until they reach a maximum. The movement is steady at any given height, so a rhythm keeps working.
Can I play the stack game at school?
The stack game runs in an ordinary browser tab with nothing to install, so a school Chromebook can play it. Whether the page opens on a school network is the school's call, and if it is blocked there, only the IT team can change that.