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Sky Stack
Free · no download · phone, tablet & desktop
Sky Stack
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Sky Stack is a one-tap timing game about building a tower into the sky. A block slides back and forth above your tower; tap to drop it. Anything hanging over the edge is sliced off and tumbles away — so every miss makes your block smaller. Land a perfect drop and a chime rings out; chain perfects and the melody climbs a pentatonic ladder while your block grows back. The sky shifts from day to dusk to night as you rise. Simple, zen, and quietly merciless.
- DropTap to drop the sliding block.
- AlignOverhang is sliced off.
- PerfectPerfect drops keep the block full size and play a melody.
- ClimbBuild as high as you can.
Phone & tablet
- Drop
- Tap
Keyboard & mouse
- Drop
- Space or click
- Tap when the block lines up, not when it reaches the middle.
- Chain perfects to grow the block back.
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Is Sky Stack free to play?
Yes. Sky Stack is free on YoHU.io. Ads keep the site free; there are no paywalls inside the game.
Can I play Sky Stack on my phone?
Yes. It runs in Safari and Chrome on iPhone and Android, and on tablets. Tap Play and the game fills the screen.
Do I need to download anything or sign up?
No. The game runs in your browser. An account is optional and only keeps your favorites and best scores on every device.
Is my progress saved?
Your best score and favorites are saved on this device automatically. Log in to keep them across devices and enter the weekly leaderboard.
How do I play in full screen?
Use the Full screen button under the game, or the corner button inside it. On iPhone the game covers the whole browser window instead, because iOS limits full screen for web pages. Add YoHU.io to your Home Screen for an app-like full screen.
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