Shade the sea around the numbers so each clue becomes an island of exactly its size, with the water flowing as one connected piece.
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How to play
Every numbered cell is part of an island made of that many cells. Shade the remaining cells as sea. Each island must be exactly its number's size and contain exactly one number, islands may never touch edge to edge, all the sea must connect into a single region, and the sea can never form a solid 2x2 block.
Each island holds one clue and is exactly that many cells
Islands never touch horizontally or vertically
All shaded sea must be connected into one piece
No 2x2 area may be entirely sea
Controls
Desktop: click a cell to cycle empty to sea to island-dot to empty; right-click toggles sea directly; arrow keys move, Space cycles, Backspace clears
Phone & tablet: tap a cell to cycle through empty, sea, and island-dot
Game modes
Three sizes: 5x5, 7x7, and 9x9
Daily puzzle shared by everyone that day, or unlimited Practice puzzles
Reset clears your marks back to the starting clues
Tips & strategy
A red 2x2 warning or an overgrown island lights up instantly, use it to catch mistakes early
Cells between two different numbers must be sea, since islands cannot touch
A clue of 1 means every neighbour of that number is sea
About Islands
Islands is a logic puzzle in the shade-the-grid family, where number clues, connectivity, and the no-2x2 rule combine into pure deduction. This is an original, free browser version with daily and practice puzzles, no download or sign-up required.
A free, original browser game on PlayPendium. No download, no install.
