WWII tactical submarine combat on your Android tablet!

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.

The first game of its kind designed for touch-screen devices.

Features:
* 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.
* Four difficulty levels.
* Tutorial mode to help you learn the ropes.
* Global leaderboards shared across platforms.

1. Click the download button to Downloading Page.

2. For Normal APK File, you can direct download the file, or you can choose fast download the file with our Installer.

3. For Speicial file such as XAPK or BAPK, you must to choose fast download the file with our Installer.

4. When you finish the file downloading, you must allow your phone to install the file from unknown resource.

Maintenance build for latest Android versions; nothing exciting.