How to Play Stack
A block slides back and forth across the screen. Tap or click at the right moment to drop it onto the stack.
Any part of the block that overhangs gets sliced off. The more accurate you are, the bigger the next block stays.
Stack as many layers as you can. Blocks get faster and narrower — how high can you go?
What Makes It Special
Each block cycles through vibrant spectrum colors as your tower grows taller.
Align blocks precisely for satisfying perfect snaps with particle effects and bonus points.
Speed increases and blocks get narrower — every layer pushes your reflexes further.
Web Audio synthesized sounds for every placement, perfect alignment, and game over.
Strategies for Higher Scores
Watch the edges, not the center — focus on where the block edges align with the stack.
Rhythm is key. The blocks move at a steady speed, so find the tempo and tap consistently.
Perfect placements give bonus points AND keep the block full-width. Aim for perfection early.
As blocks get narrower, small mistakes matter more. Stay calm and slow your breathing.
The speed increases gradually. Don't panic — the rhythm stays consistent even at higher levels.
How Scoring Works
Frequently Asked Questions
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