With every placement, a gentle tone layers into a small harmonics.
Block Harmonics is a clean, endlessly replayable placement puzzle: drop varied shapes onto an 8×8 board and clear filled rows and columns. Difficulty adapts gradually to your play. Build combos and simultaneous clears to push your score, and aim for a new personal best.

— Highlights —
• Variety of pieces: from monomino to pentomino/hexomino.
• Smooth controls: tap to pick, drag to place, with helpful snapping.
• Scoring that rewards skill: combo chains, row/column simultaneous clears, perfect fits, area wipes, large-piece bonuses.
• Sound that feels good: tone and stereo change by color and position; combos sparkle with chords. Ambient BGM supports focus or relaxation.
• Settings: toggle SFX, 4-step volume, display handle name.
• Offline-friendly: scores are saved on device. No ads, no purchases.

— How to Play —
1) Choose from three pieces and place them on the board.
2) Fill any row or column to clear it and score points.
3) Clear repeatedly to raise your combo multiplier. The game ends when no placement is possible.

— Tips —
• Plan for multiple rows/columns at once.
• Aim for perfect fits to earn a bonus.
• Use large pieces and area clears to spike your score.

Privacy: scores and session data stay on your device and are not transmitted.

Compose your own little harmonics of color and shape.