War strategy game set in 1941, based on the boardgame. Only the major powers of that time are represented: the United States, the Soviet Union, Great Britain, the Third Reich, and the Japanese Empire. The PC game brings the exact rules and gameplay of the boardgame to the computer, with some extra options. A dozen or so rule variants can be toggled on or off prior to a game -- things like paratroops in bombers; scorched earth; deploying new naval units in an occupied sea zone. There is also a unit editor, allowing you to adjust the cost, attack, and defense values for any unit, either globally or per side.