Stack Fun: One Tap, Stack Higher
One move anyone can do, a tower that keeps getting harder, and friends racing to stack the highest.
One Gradient Tower
Each layer shifts hue slightly, creating one flowing gradient from warm ground tones to cool deep-space colors.
It's the signature visual that defines Stack Fun's aesthetic.
Why it's fun
One tap, 3-second start
Tap anywhere on screen to drop the block - the same interaction model as Jump Jump. No tutorial needed.
Perfect align, stay wide
Align within a small error window and the block snaps back to full width instead of getting sliced - the skill ceiling and the best feeling in the game.
One gradient tower
Each layer shifts hue slightly, so the whole stack reads as one flowing gradient from warm ground tones to cool deep-space tones.
Difficulty from physics, not levels
No hand-authored levels: every miss narrows the block, height speeds up the motion - a fair, naturally rising curve.
Daily same-seed challenge
Everyone gets the exact same block sequence each day, so it is a pure test of touch and consistency.
Weekly friend leaderboard
A friend leaderboard that resets weekly, plus a shareable gradient-tower result card when your run ends.
About this stack tower game
Stack Fun — sometimes typed as StackFun or Stack Tower — is a stack/tower casual game in the spirit of classic block-stacking mechanics. Whether you're searching for Stack Fun, StackFun, or a stack tower game to play right now, you can start playing instantly in your browser - no install required.