Use the on-screen number pad or your keyboard's number keys to input depth. Move with the AD or arrow keys. Clear your depth entry by pressing the on-screen X button or the X key on your keyboard. Launch a depth charge by pressing the spacebar or clicking the Launch button.
Destroy enemy submarines before they take you out—just input the correct depth by solving their multiplication equation and unleash your depth charges. Dodge incoming torpedoes to survive and protect your health.
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