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About Overstack
A one-tap tower builder, made for phones. A block slides back and forth above your tower. Tap to drop it, and whatever hangs over the edge is cut off, so the next block is narrower. Land it perfectly and you keep your width; string several perfect drops together and you win some width back. The blocks speed up as the tower climbs from the city into space.
How to play
- Phone: tap anywhere to drop the block.
- Desktop: click or press Space.
- The run ends when you miss the tower completely.
Tips
- Watch the sliding block, not the tower.
- When the tower is narrow, play safe instead of chasing perfect drops.
- Play with the sound on. The perfect-drop chime helps you find the rhythm.
- Most people tap a little late. Use the guide line early on to find your timing.
FAQ
Is it free? Do I need an account? It's free, paid for by ads. No account: you only type a name if you want to post a score.
Is it phone-only? No. It's made for phones, but it plays just as well with a mouse or the space bar.
What is a perfect drop? Landing a block exactly on top of the one below. You keep your full width.
More games like this
- Gravity Dash — the other one-tap game, built for speed rather than nerve.
- Tether — one button, but the timing is about release rather than drop.
- Neon Coil — your own past moves narrowing the space you have left.
Or read Why one-button games are secretly the hardest — one of our write-ups on how these games are built and how to play them better.