Hunt enemy convoys, battle destroyers, attack land bases, and shoot down aircraft in this long-awaited sequel to "Crash Dive". Take command of a Gato-class submarine prowling the South Pacific in search of enemy shipping to sink. Sneak past the destroyers and torpedo the transports, or surface and engage the sub-chasers in a duel with your deck gun. When the enemy planes come in on a strafing run, man your AA guns to take them down! Evade the hunting escorts before they can crush you with their depth charges. 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. * Full day/night cycle and wide range of weather conditions affect visibility and weapons. * Crew health and location-based damage affects the performance of your sub. * Optional crew management and detailed damage control (or let the AI take care of that for you). * Optional upgrade tech tree for your sub (can also be left to the AI).   * Extensive campaign mode: 10 patrols throughout the war and across the South Pacific. * Random mission generator for deep replayability. * Both randomly-generated maps and real-world locales including the Solomon Islands, Philippines, Sea of Japan, and more! * Moddable game files if you feel like hacking.