In 1942, a man named Geoffrey Pyke proposed to build aircraft carriers out of ice. Ice floats. No U-Boat would ever sink these ships. Ice is virtually free. An armada could be constructed on a shoestring budget. Lord Mountbatten and Winston Churchill agreed to this strange suggestion. In times of war all avenues must be explored. The project was christened Habakkuk. By 1943 engineers had developed a mixture of seawater and wood pulp that froze concrete-hard. They called it Pykecrete. Soon a prototype ship was constructed from this new material at a secret base in Canada. In reality, the project was abandoned soon after. In this game, the project was brought to a conclusion.