
Free
About
ALPHASTACK is a simple physics game where you stack letters from A to Z, in order.
The controls are simple.
Tap where you want, and the letter drops straight down.
No left-right adjustments. No skills required.
But the moment a letter falls below the base, it’s game over.
It’s okay if the stack collapses.
It’s okay if it overlaps or tilts.
As long as it doesn’t fall, you continue.
If it falls, it ends.
Physics behavior changes every time.
Collision detection faithful to the actual shape of each letter.
Difficulty is always the same — only luck and intuition matter.
Instant restart after failure.
Stack from A to Z to clear.
Nothing more. Nothing less.
Short sessions.
Before you know it, you’re playing again.
A game that’s meaningless — yet impossible to stop.
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What's New in ALPHASTACK
1.01
February 26, 2026
This version expands language support across more regions.