The Great Battles of History series is back with The Devil's Horsemen, an examination of the military tactics of steppe tribe warfare, as immortalized by the mighty armies of Genghis Khan and the Mongols. The game focuses on cavalry and archery action, featuring mounted archers of exceptional skill. The Devil's Horsemen depicts the four major battles of the era - The Indus, The Kalka, Liegnitz and Ayn Jalut.

The Devil's Horsemen features basic rules for both regular and SimpleGBoH play. The rules bring the system into full flower of mounted archery, with a detailed, augmented set of archery and cavalry mechanics that include various types of Shower Fire (as opposed to plain Volley Fire), Impetuosity and Aggression, Feigned Retreat, Harass and Disperse tactics, and Rally to Standards, with the various armies and units being rated for their ability to use these.