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Dream Bubble Sort is a gentle liquid-sorting puzzle game built for short, focused play sessions.

Each chapter places you in a two-zone board of glass tubes and bubble vials. Tap a tube to rotate it, then tap another tube to pour matching top layers when the openings line up. The goal is simple: gather every color into a clean four-layer stack before you run out of moves.

Some chapters add sealed tubes, reserve buffers, and a one-time flow ring that lets the next transfer ignore alignment. Those small twists keep the puzzle fresh while staying easy to learn and quick to restart.

The game is fully playable offline and keeps progress locally on the device. It is designed for commuting, short breaks, and calm puzzle sessions where planning matters more than speed.