The game is played on a fully revealed map of the world (except in the post-apocalyptic future setting, when the world is concealed by fog of war) with various terrain types. The number of cities determines one's income and therefore what can be built. In some scenarios the number of oil wells controlled affects the movement of a player's units. There are relatively few unit types and their availability differs according to the scenario. Units' movements and orders are plotted in advance. It has a number of facilities for zooming in to see action more clearly. Enemy units are only visible when they are in range of friendly units. This provides ample opportunity for surprise attacks on the unwary. The game is won when all the capital cities of the world have been captured by one side.