World Submarine Combat is a submarine simulator game where players engage in underwater stealth combat. In the midst of World War III in the Pacific and Atlantic oceans, you take control of various submarines including Chinese, Russian, US, UK, and Japanese models. Your mission is to build a nuclear submarine base, arm it with a deadly arsenal, and launch strategic nuclear missiles.

Players can experience intense submarine warfare by hunting targets, engaging in battles with anti-submarine helicopters, and destroying cruisers. The game offers new missions such as searching for the sunken Russian submarine Kursk and launching surprise attacks with North Korea's missile submarine.