WWII tactical submarine combat on your iPad! Take command of a U-boat prowling the Atlantic in search of enemy convoys to sink. Sneak past the escorts and torpedo the transports. Or surface and use your deck gun in a night attack. When the escorts come after you, drop decoys and sneak away before they can crush you with their depth charges. Features: * The first game of its kind designed for touch-screen devices. * Smoothly blends a submarine simulator with arcade action. * Provides the tools for both stealth and offense; you decide how aggressive you want to be. * Multiple times of day allow for different play styles. * Location-based damage/repair affects the performance of your sub. * Random encounter generator for deep replayability. * Three difficulty levels. * Tutorial mode helps you learn the ropes. * Global leaderboards.