Controls

W / S or ↑ / ↓

Raise or lower the throttle. Release to hold it.

A / D or ← / →

Steer left or right.

Click a ship or the sea

Set the aim point. Guns and trainable launchers turn to it.

Space

Fire the selected weapon group. Hold for guns; press once for each rocket salvo, missile, torpedo or depth charge.

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Select a weapon group: 1 Guns, 2 Torpedoes, 3 Rockets, 4 Depth charges, 5 Missiles, 6 Mines.

G

Show or hide weapon range guides.

Shift

Toggle the raised 4× telescope. Right-drag to look; click to aim.

Hold Q / E

Submarines: empty or fill ballast to rise or dive.

H

Sound the horn, once every 10 seconds.

Esc

Pause. Online battles cannot be paused.

Anti-aircraft guns, AT/AA guns and aircraft act on their own; no key fires them. How each weapon group behaves is in Firing weapons.

V

Select. Drag a part to move it.

Shift + click or drag

Add to the selection, or select a group.

B

Build. Choose a part, then click the ship.

Hold Alt

Change the snap step while placing or dragging.

P / X

Paint or delete. Click, or drag across parts.

↑ ↓ ← →

Nudge the selection one block. Add Shift to raise or lower it.

R

Rotate the selection or the next part.

Delete / Backspace

Remove the selected parts.

⌘ / Ctrl + Z

Undo. Add Shift to redo.

⌘ / Ctrl + D

Duplicate the selection.

W A S D

Pan the camera across the dock.

Right-drag · Scroll

Orbit the camera · zoom.

Esc

Cancel the current preview; otherwise clear the selection.

Edits save on their own. Enter applies a preview and Escape cancels it.

Right-drag · Scroll

Orbit the ship · zoom.

H

Sound the ship's horn.

Play in landscape. The on-screen controls replace the keys:

Left thumb

Touch the lower-left area to place the joystick. Push forward or back for engine power, left or right to steer. Releasing stops the engines and centres the rudder.

Right thumb

Tap a ship or the sea to aim. Drag to look around; pinch to zoom.

Weapon icons

Tap an icon along the bottom to choose a group. Hold Fire for guns; tap once per rocket salvo, missile, torpedo or depth charge.

Rise / Dive

Submarines: hold to change ballast.

Telescope

Toggle the raised 4× view.

In the shipyard, choose a part and tap against the ship to build. The bottom dock switches between Select, Paint and Delete, and the arrow buttons above it undo and redo.