I.C.B.M. Tweet Description I.C.B.M is a quick and nasty simulation of a thermonuclear exchange between the U.S. and the U.S.S.R. - BoardGameGeek Details Ages: 12 and up Category: Modern Warfare Designer: Neil Zimmerer Mechanics: Hex-and-Counter Players: 2 to 2 PrimaryName: I.C.B.M. Product Title: I.C.B.M. Publisher: Mayfair Games Time: 60 minutes Year: 1981
