Dive into the depths and visit a sunken pirate ship. Get into the cabins and see the treasures which the pirates valued more than their own lives. Meet the new inhabitants of the ship and its surroundings and enjoy the beauty of the underwater world.
You're the captain of a ship moving through a mine field. Use your depth charges to destroy the enemy subs laying those mines before one blows a hole in your hull. Watch out for the sea creatures. Some can help but others just get in the way.