Ultimate Jelly Stack

Drop. Wobble. Balance. Repeat.

Jelly Stack is a cozy physics puzzle about building towers out of wobbly, translucent jellies. Every jelly is soft, squishy and has a personality. Land it well and it cheers. Land it badly and it sweats.

Ten kinds of jelly

Classic, Tiny, Chubby, Bouncy, Sticky, Slippery, Tall, Sleepy, Golden and Rainbow. Each one squashes, bounces and slides differently, so every stack is a new problem.

Six ways to play

- Puzzle: 100 handcrafted levels across five worlds (Jelly Garden, Candy Clouds, Wobble Woods, Frosting Peaks, Jelly Kingdom). Goals include reaching a height, holding a tower steady, balancing several jellies, and bridging a gap.

- **Daily Stack**: everyone gets the same jellies today.

- Classic, Endless, Time Attack and Zen (no score, no losing, any jelly you like).

Mind the wind

From the third puzzle on, a breeze pushes falling jellies sideways. Read the gauge and aim into the wind. One jelly off the platform and the puzzle is lost.

Platforms that fight back

Narrow, slippery, bouncy, moving, tilting, split and fragile platforms.

Abilities

Freeze, Gentle Drop, Sticky Touch, Reposition and Balance Boost. Limited in puzzles, unlimited in Zen.

**Collect things**

Earn coins to unlock hats, plate skins, sparkle effects, face styles and sky backdrops. Fifteen awards to find.

Made to be played anywhere

Mouse, keyboard, touch or a gamepad. Calm-effects and large-menu options, and it follows your system's reduced-motion setting on first launch. Your progress is saved in your browser.

Every piece of art, UI and sound is original and generated in code. The only third-party parts are the Matter.js physics engine (MIT) and the Fredoka font (SIL OFL); see `THIRD-PARTY-LICENSES.txt` in the download.

Controls 

- Mouse: move to aim, click to drop. Touch: drag to aim, release to drop.

- Keyboard: A / D or arrow keys to nudge, Space to drop, R to restart, Esc to pause.

- Abilities: F freeze, G gentle drop, B balance boost, T sticky touch, X reposition.

- Gamepad: stick or d-pad to aim, A to drop, Start to pause.