Ironclads: American Civil War is a historical wargame/naval simulator with turned based tactics. Current of time inside of game is broken into rounds. Within the limits of each round in consecutive sequence the player and the computer opponent can realize all actions possible within five minutes of real time for each of the ships. During the moment of actions of the chosen active ship all other game units are motionless. Time for decision-making is not limited. Game locations of real scales are not divided into cells or hexagons. The trajectory of movement of the active ship is determined by laws of physics proceeding from speed, the sizes and the form.