01 / TIME IT
One tap is all it takes.
Watch the block glide. Tap, click, or hit Space to drop it onto your tower.
THE FREE TOWER STACKING GAME
Small blocks.
Big obsession.
YOUR NEXT PERSONAL BEST STARTS HERE
One tap to stack. One edge to miss.
How high can you go before it all falls?
THE ORIGINAL STACK
BEST 00
THE SKY IS NOT THE LIMIT.
How high can
you go?
Click, tap, or press space to play
↵ ONE TAP. ENDLESS POSSIBILITIES.NO PRESSURE. JUST PRECISION. ↗
Ready to play
100% freeNo sign-upMade for your break
SIMPLE TO PLAY. HARD TO WALK AWAY.
Find your flow.
Three little rules.
An unlimited number of “last tries.”
02 / FIND YOUR EDGE
Stay perfectly in line.
Anything hanging over gets sliced away. A perfect landing keeps you whole.
03 / MAKE IT PERSONAL
Your best. Their next goal.
Beat your own record, then send a challenge. A little friendly rivalry goes a long way.
YOUR FIRST MISSION
Make it to 10. Then make it personal.
No leaderboard pressure. Just a little target worth another try.
10 Find your flow25 Build some nerve50 Touch the clouds
A FRESH START. EVERY SINGLE DAY.
Same stack. New story.
A shared daily pattern. Your own personal best.
Come back tomorrow and find your rhythm all over again.
GOOD TO KNOW
A few small
details.
Less mystery. More mastery.
How do I play STACK//ONE?
Tap the game area, click, or press Space to place the moving block on the tower. Any overhanging edge gets trimmed off. Line it up perfectly to keep your full block. Your run ends when a block misses the tower entirely.
Is STACK//ONE free to play?
Yes. Play as many rounds as you like, completely free. There are no downloads, accounts, or in-game purchases. The site uses Google AdSense and may display advertisements to support the game without charging you to play.
What is the daily challenge?
Each UTC day has its own repeatable sequence of block speeds and directions. Everyone playing that day's challenge gets the same pattern. You can retry as often as you want, and your daily best stays on this device.
Can I play on my phone?
Absolutely. STACK//ONE works in modern mobile, tablet, and desktop browsers. Use one finger on touchscreens, a mouse on desktop, or Space and Enter on your keyboard. Press P to pause a run.
How do friend challenges and records work?
After a run, share a link with your score for a friend to beat. Scores and personal bests are saved in your browser, not on a global leaderboard. Challenge scores are friendly, unverified claims—not competitive rankings.