MergeHarbor

Make room for the next move in a thoughtful offline number puzzle.

Slide the whole board in four directions. Matching neighboring tiles merge into a larger number, while each effective move adds a new tile to an open space. Every merge is resolved together, so a new tile created during a move cannot merge again until the next turn.

Choose a relaxed classic run and pursue your own high score, or explore target challenges with fixed openings and clear goals. Challenge play is designed to be repeatable, so progress depends on your choices rather than an unexplained sequence of lucky drops.

Use your one undo to revisit the latest position, score, and random state. The board records your peak tile, effective moves, score, and whether the undo was used. When a run ends, the review shows a compact summary before you choose another run or return home.

The app includes a short play guide, adjustable swipe sensitivity, merge animation, sound feedback, number sizing, level textures, and light or dark themes. Preferences, active games, scores, and statistics stay on your device. No account or network connection is needed for the core experience.