Sea Battleship: notepad-style naval duels on a 10×10 grid
On a 10×10 board, Sea Battleship has you place ships of different sizes, then fire cell by cell to pin down the enemy fleet. The notepad-style presentation makes every hit and miss easy to track, and you can face the AI or a friend on the same device.
It fits the logic game format because each shot gives you new information, and one good read can change the whole match. You can play free online in your browser with no download, which makes it a quick pick on desktop or mobile.
Ship placement, misses, and the extra turn on a hit
Before the first volley, arrange your ships horizontally or vertically and leave space between them so one lucky strike does not expose a whole cluster. Once the battle starts, click a square, note the result, and keep narrowing the search with the pattern of misses around it.
That extra turn after a hit matters, because a strong opening can snowball into a fast sink if you chain your shots well. The game stays focused on clean placement and smart targeting, so every move is about reading the grid rather than rushing.
If you want a close multiplayer match with the same hidden-fleet pressure, Battleship War: Multiplayer is a natural comparison because it keeps the same coordinate hunt. Battleship War follows a similar board-and-guess rhythm, while Battleship uses the same classic search across a square grid. Start playing when you want a fast naval duel that works without signup.
Platform
Browser Desktop , Mobile and Tablet
Release
25 january 2017
Last Update
04 april 2026