🧱 Stack

Drop the moving block dead-centre on the base. Stack tests precision under pressure — free in your browser, no download, no signup. Stack appears as one of the nine mini-games in a blocks.pw duel: best of 5 rounds against a real opponent, 30–40 seconds total, in your browser.

How to play Stack

  1. A block slides side to side above a fixed base.
  2. Tap to drop it. One drop — no undo, no second run.
  3. Your score is the overlap: how much of your block landed on the base.
  4. Better alignment than your opponent takes the round.

Rules and scoring

Overlap percentage decides it: a dead-centre drop scores near 100%, a clipped corner scores whatever stayed on. The block's speed makes "just wait for the middle" harder than it sounds — hesitation drifts you past centre exactly as reliably as impatience drops you short.

It's the anti-Smash: zero reward for speed, everything for controlled release. Duels are won by whoever converts adrenaline into stillness first.

Strategy: how to win at Stack

  • Track the block's rhythm for one full pass before dropping — release on the beat, not on hope.
  • Aim your tap at the moment the leading edge crosses centre, not when the block "feels" centred; feels are late.
  • Exhale before the drop. It's a free stabiliser and nobody uses it.
  • If you missed centre, note which side — players drift the same direction every time until they consciously correct.

Where Stack fits

In a duel, Stack rounds arrive shuffled among the other mini-games — Reflex, Smash, Stack and the rest — so winning the match means being dangerous at more than one skill. Start a quick match against the world or send a challenge link to someone who deserves humbling.

Stack for every situation

Play Stack now

Free 30-second duels in your browser. No download, no signup.

Play now — free

Frequently asked questions

What counts as a perfect Stack score?

Full overlap — the block entirely on the base. In practice anything above ~90% overlap wins most rounds.

Does the block speed up?

The pace is tuned to stay tense but readable in a 30-second duel format — fast enough to punish autopilot, slow enough that skill beats luck.

Is Stack the same as the classic tower-stacking game?

Same core skill, duel format: one precise drop against an opponent's drop. For the endless solo version, play Tower — stack as high as you can on a world leaderboard.

Related games