Civil War was written in 1968 by three students at Lexington High School, Massachusetts: L. Cram, L. Goodie, and D. Hibbard.
It was modified into a two-player game by G. Paul and R. Hess of TIES, St. Paul, Minnesota. The game is published as type-in source code in Basic Computer Games (Microcomputer Edition), ed. David H. Ahl with Steve North, Workman Publishing, New York, 1978 (ISBN 0-89480-052-3).
The BASIC source code listing is published in Microsoft BASIC 3.0; suggestions for conversion to a wide range of other BASIC implementations are provided.