DEPLOYMENT

Your fleet deploys itself — hit TO BATTLE and sail, or fuss first: SHUFFLE re-rolls, drag moves a ship, tap a selected ship to rotate it.

BATTLE

Tap a square to aim (slide to adjust), then FIRE — or tap the aimed square again to fire instantly. Red is a hit, white is a miss. A hit earns you another shot; only a miss hands the guns to the enemy. Sink all five ships before yours go down.

ONLINE DUELS

Open a room and SHARE INVITE — your friend taps the link and lands straight in your lobby (or enters the complete secure room code). Boards are sealed before the first shot and verified after. After a match, both captains can tap REMATCH to go again instantly.

SIGNALS

In an online duel the ✉ button opens the signal channel — type a message or fire off a one-tap phrase. Signals keep working while your opponent reconnects, and land as soon as they are back.

TACTICAL ORDERS

SONAR scans a 3×3 area and reports the number of unhit hull squares at the time of scanning. Your destroyer must be afloat. TORPEDO strikes three squares in a line; R or ROTATE changes direction. Your submarine must be afloat. Both orders use one charge and hand the turn to the enemy, even on a hit. GUN fires a single shell; a hit earns another shot.

CAMPAIGN & DAILY SIGNAL

Read the mission objective: some operations end when one target sinks, and some have an order limit. Daily Signal uses the same chart for everyone on the same UTC day. Your best result and campaign victories are saved on this device. Practice and missions do not affect Classic ranks.

CONTROLS & SAVES

Arrow keys aim, Enter or Space fires, R rotates a torpedo, and P pauses solo. F toggles fullscreen. On a phone, hold and slide to aim with the enlarged preview, then release and press FIRE. Solo saves at completed turn boundaries; a reload during an animation returns to the last safe boundary. PAUSE lets you save and leave. FAST speeds up ordinary shots.

THE LADDER

Beat ENSIGN to unlock CAPTAIN. Beat CAPTAIN to face the ADMIRAL. Win medals for accuracy, streaks, and style.