Tractics is a set of rules for conducting World War II style combat with 1:285 scale micro armour miniatures. It was originally written to use 1/87 scale miniatures which were easily available at the time of its writing. Written by Mike Reese and Leon Tucker with contributions by Gary Gygax, the game was published by Guidon Games in 1971 and republished by TSR, Inc. in 1975. It came as a boxed set containing three booklets with illustrations by Don Lowry. It has the distinction of being the first published game to use a 20-sided die. TSR printed about 5000 copies of the game and then let it go out of print in 1977.