Ancient Combat is a set of free wargames rules by Matt Cappetta.
Rules: Ancients
Legio VI Macedonia
Legio Wargames offers Legio VI Macedonia, a set of free wargames rules for playing games set in the Helenistic through the Republican Roman eras. They’e designed for 6mm figures, with one 20mm x 20mm stand equaling 300 – 500 heavy infantry.
Legio VI Julia Augusta 6mm Ancients Rules
Legio Wargames offers Legio VI Julia Augusta, a set of free wargames rules for battles of the late Roman Republic and Empire (100BC to AD250). They’re designed for 6mm, where one 20mm x 20mm stand equals a cohort.
Age of Heroes Bronze Age Rules
Age of Heroes is a set of free wargames rules for playing skirmishes in the Bronze Age.
Fleet of Battle Ancient Galleys Wargames Rules
Fleet of Battle is a set of free wargames rules for playing out battles between fleets of ancient galleys. Think Ben Hur. There also are several pages of free print-and-play galleys for use in lieu of lead miniatures. The rules require a knowledge of the commercial Field of Battle wargames rules.