Nurikabe: Islands & Sea
- Developer
- Zarocer
- Published
- Oct 5, 2026
- Technology
- HTML5
- Devices
- PC, Mobile
- Orientation
- Adaptive
- Players
- 1
About the game
A browser adaptation by Zarocer.
Create numbered islands separated by one connected sea. Complete each island to its clue size and avoid a two-by-two sea block.
Controls
Click or tap unnumbered cells to change their mark. Number keys choose island or sea; arrow keys move focus. Z undoes, H reveals a native hint and Check reviews the board.
Finish an island without sealing the sea
A clue of 1 is already a complete one-cell island. Its orthogonal neighbors must be sea. Each larger island includes its numbered cell in its total size and contains no second clue; diagonal contact is different from joining two islands along an edge.
The sea must stay connected and cannot contain a full 2 × 2 block. When three cells of a 2 × 2 square are sea, the fourth cannot also be sea. Balance that local deduction against island sizes: extending an island can accidentally cut the remaining sea into separate regions.
Save and continue
ZAROCER opens this build in English. Saved progress and records stay in this browser when storage is available. Use the native continuation controls after reloading. Clearing site data can remove saves. The portal’s Pause, Theater and Fullscreen controls preserve one game instance.
Nurikabe: Islands & Sea gameplay screenshots
