About Sea Battle
Sea Battle is a free online battleship multiplayer game. Secretly place your ships, then take turns firing at the enemy grid. Hits and misses guide your hunt — sink the entire fleet to win. Play online with friends (invite code), locally on one device, or vs CPU — on PC, phone, or tablet.
How to play Sea Battle
- Each player secretly places a fleet of ships on their own grid.
- Take turns calling out or tapping a square on the opponent's board.
- A hit marks a ship square; a miss marks empty water.
- Sink all enemy ships before they sink yours to win.
- Online: create or join with a code. Local: pass the device so fleets stay secret.
Tips & strategy
- Space ships apart so one lucky streak cannot wipe your whole fleet.
- After a hit, search adjacent squares to finish that ship.
- Use a checkerboard search pattern early to cover more ocean efficiently.
- Keep notes of misses so you do not waste shots.
Sea Battle FAQ
How do I play Sea Battle online with friends on PC?
Open Sea Battle on this site, choose Play vs Friend → Online, create an invite, and share the code. Your friend joins on their browser (Chrome, Edge, etc.) — no install needed.
How do I play Sea Battle online with friends on Android?
Open this site in your phone browser, start an online friend match, and share the invite code. Friends can join from any Android browser — same as on PC.
Is Sea Battle like Battleship?
Yes — same core idea: hide ships, take turns shooting, sink the fleet. Play free online multiplayer or local pass-and-play.
Can we play Sea Battle multiplayer for free?
Yes. Online with friends (invite code), local two-player on one device, and vs CPU are all free — no download required.
