The original edition came out in 1963 a second edition with some revamped rules / clarifications was issued in 1974. Both editions share the same box - the rules are the only difference.As far as AH games go, this one is fairly simple. Not too many units, and the strategies are not overly complicated. A good game to use to introduce players to hex-based wargames.Avalon Hill Complexity rating - 2 - BoardGameGeek