Ironclad (1973)
Ironclad is a miniatures wargame written by Tom Wham and Don Lowry and published by Guidon Games in 1973. The rules simulate American Civil War naval combat such as the 1862 battle between the USS Monitor and the CSS Virginia.
Legacy and influence
Ironclad influenced Dave Arneson, co-creater of Dungeons & Dragons, where he came up with the early concept of hit points and armor class form this game and used them in his Blackmoor campaign. [1]