Civilizations Collide: The Wars of the Aztecs, the Inca, the Maya, and the Conquistadores – A Supplement for Feudal Patrol

Civilizations Collide supplement roughly covers the period of the Spanish Conquest of the 16th Century. This supplement is designed to allow the players to recreate battles both during the Conquest –and in the centuries before it happened. Optional and special rules are covered first, then weapons, figure and unit characteristics, and a couple of suggested scenarios. - description from rules supplement