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About game
Tube Sort Lab is a relaxing color puzzle where you pour layered liquids between glass tubes until each tube holds one color. Easy tutorial hints, smooth animations, and gradually harder levels make it simple to learn and satisfying to master.
How to play
Tap a tube to select it, then tap another tube to pour liquid into it. You can only pour when the top colors match or when the target tube is empty. Keep moving liquids between tubes until every filled tube contains one color. Use undo or restart if you make a mistake. Hints can help you find the next useful move.