Duel another captain: invite a friend, or find anyone looking for a fight.
Open a battle to invite a friend, or find any captain who is looking for a fight. Already have a link? Just open it.
Tap the grid to place a ship. Tap a ship to take it off.
Ships must not touch, not even at the corners.
The enemy fleet is destroyed.
Fleet: 1 battleship (4 squares), 2 cruisers (3), 3 destroyers (2), 4 patrol boats (1). Ten ships in all.
Deployment: ships must not touch, not even at the corners.
Salvo: a hit lets you fire again. A miss passes the turn to your opponent.
A sunk ship is ringed with dots: no ship can be there.
Whoever sinks all 10 enemy ships first wins.