Reef Blocks

How to play

Drop coral pieces onto a nine-by-nine seabed. Fill a whole row or column and it dissolves into rising bubbles. How to play: drag one of the three coral pieces onto the reef — a bright outline shows exactly where it lands and which lines it would clear, so you never have to guess under your thumb. Prefer tapping? Tap a piece to pick it up, then tap the reef to place it. Pieces never rotate, so what you see is what you get. Match the coral. A line built from fewer coral types pays a bonus — three types or fewer earns extra, and a line of a single type pays triple. It is never required, just worth chasing. Chain them. Complete a row and a column with the same piece and they resolve one after another at a rising multiplier — the longer the chain, the higher each step pays, and the higher the note it plays. Five depths, each adding one new idea. The Shallows are open water. The Reef adds crusted coral that needs clearing twice. In the Kelp a current nudges one column down every ten placements — always telegraphed, never a surprise. The Trench scatters pearls worth a fortune inside a chain. In the Abyss the water goes dark, and lanterns you clear light up an entire cross. No timer, ever. No move limits and nothing to buy. The run ends when none of your three pieces fits — and then you just start another one.

Controls

• Drag a coral piece from the tray onto the reef
• Or tap a piece to pick it up — it follows your finger, then tap to place it
• Keyboard: 1/2/3 or Tab to choose a piece, arrow keys to aim, Enter to place