Earth Scorchers—AKA: Artillery Games, AKA: Assault By Battery—are Scorched Earth-like games, IE: generally turn-based games where players must aim a cannon of some sort, taking account of wind, and the strength and angle of the shot.
Examples
1976 - Artillery.
1979 - Shoot. For the Compucolor. Date might be wrong.
1983 - Artillery Duel.
1987 - ballerburg. Now open-source and ported to lots of OSes.