Stack Tower — free online Arcade game
Drop each sliding block on the last one and build as high as you can.
Stack Tower is a free online one-button arcade game. A block slides back and forth above your tower; tap or press Space to drop it. Whatever hangs over the edge is sliced off, so every miss makes the next block smaller, while a perfect drop keeps it whole. Keep stacking until there is nothing left to land on and try to beat your best height. Play in your browser with no download and no sign-up.
Quick start
- Press start.
- Tap, click or press Space to drop the sliding block.
- Line it up with the block below and build as high as you can.
How to play Stack Tower
- A block slides back and forth above the top of your tower.
- Drop it at the right moment. The part that overlaps the block below stays; the overhang is cut off and falls away.
- Each new block is only as wide as what was left, so mistakes make the game harder.
- A perfect drop snaps flush with the block below. Several perfect drops in a row win some width back.
- The game ends when a block misses the tower completely. Your height is your score.
Controls
- Drop the block: tap, click or Space
Timing tips
- Watch the block, not the tower top — drop when its edges line up.
- Speed rises as you climb, so settle into a rhythm early.
- Chase perfect streaks: they are the only way to win width back.
Frequently asked questions
Is Stack Tower free?
Yes. Stack Tower is completely free to play in your browser, with no download, no account and no in-game purchases.
Is my progress saved?
Your best height is saved locally in your browser on this device. Clearing site data resets it.
Can I play on my phone?
Yes. Stack Tower is built for touch screens as well as mouse and keyboard, and it fits portrait and landscape screens.