When Civilizations Collide, a Feudal Patrol supplement by Mark Morin.
This supplement roughly covers the period of the Spanish Conquest of the 16th Century.
The 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 included, as well as weapons, figure and unit characteristics, and a couple of suggested scenarios.
This is a free downloadable PDF supplement. A copy of Feudal Patrol and two or more Feudal Patrol Action Decks are required to play.
The game can also be played between two players, two teams of players, or solo using the built-in solo AI mechanisms of Feudal Patrol.