Stephan Hess has written Chariotmaster, a set of free wargames rules for playing a fantasy version of Roman chariot racing. What I like about these rules is that they don’t require you to play on a gridded board, like Circus Maximus and other chariot rules sets.
Miniatures Rules
Siege of Tenochtitlan rules
Matt Fritz has these simple set of free wargamesrules for recreating the Siege of Tenochtitlan. He uses them with his students — a great idea for both wargaming and learning! It inspires me to try similar things in my classroom.
Rorke’s Drift rules
Rorke’s Drift has captured the imagination as one of the greatest stands in history. Thousands of brave Zulu warriors versus a handful of stalwart British soldiers. What’s not to like? The battle is a staple for colonial wargamers. Steve Winter has these free wargames rules for Rorke’s Drift.
Seeing the Elephant ACW Rules
Bob Bergman has written a set of free wargames rules for the American Civil War called Seeing The Elephant. Designed for two different regimental and a brigade scale, the rules use a card activation mechanism, combined with a Morale Check. Firing is done by adding Fire Factors and rolling a die; Melee by figuring odds and rolling a die. In all, a comprehensive, well-thought out set of rules.
Rules Crusade
Rules Crusade is a complete rewrite of the Warhammer 40K, Mordheim and Necromunda wargames rules to use the old Milton Bradley Space Crusade system. Its well done, but I’m not sure why Sean Patten went to all the effort. I’m also not sure why GW’s hordes of lawyers haven’t descended upon him and turned him over to the Inquisitors.