Pebble Sort: Ball Sort Puzzle

Pebble Sort is a relaxing ball sort puzzle played with smooth river stones instead of balls. Lift a stone, drop it on the same color, and watch the river settle. Every tube holds a mix of stones, and your goal is simple: sort every tube to one color.

If you enjoy ball sort, water sort or color sort games, this calm sort puzzle gives the classic tube-sorting idea a fresh, tactile feel. It works offline, so you can play anywhere with no wifi.

A JOURNEY THROUGH FOUR SEASONS
Follow the river from Plum Blossom Creek through Lotus Pond and Maple Falls to Frost Stream. 160 levels across four seasonal worlds, each with its own scenery, then the river keeps flowing with endless levels after that. Every tenth level is a harder challenge with double coins, followed by a gentler breather level.

NEW TWISTS AS YOU GO
Each season brings a new idea to this ball sort puzzle, introduced step by step:
- Mystery stones show their color only when they reach the top.
- Vine-bound tubes open after you sort enough other tubes.
- Bamboo cups hold just two stones.
- Frozen tubes thaw after a few moves.

MADE TO FEEL GOOD
- Polished stones with soft clacks that rise in pitch as you build a streak of moves.
- Sorted tubes are sealed with a little celebration of petals and ripples.
- Gentle haptics, a quiet river-and-wind ambience, and a mute switch for each.
- Every stone color also carries its own engraved symbol, so the game stays easy to read for color-blind players.

STARS, COINS AND THINGS TO COLLECT
- Earn up to three stars per level by solving it in fewer moves.
- Collect coins and river gifts along the journey.
- Unlock stone sets (Sea Glass, Glazed Clay, Jade and Gems, Planets, Sweets) and tube styles (Bamboo, Celadon, Lantern).
- Reach new seasons to unlock their gardens as backdrops.

A NEW DAILY STONE
One puzzle a day, the same for everyone. Solve it to keep your streak flowing and share your result with friends.

PLAY YOUR WAY
- Free undos on every level, hints that show the next good move, and an extra tube when you are stuck.
- The first levels teach you by doing, with a hand that shows each tap.
- Works offline with no wifi needed. No account needed.
- Free to play with ads. Remove ads with a one-time purchase. Optional videos give hints, extra tubes or double coins.

Looking for a calm ball sort game to unwind with? Pick up the first stone and let the river flow.