Galleon is a set of wargames rules for naval combat in the 1400s and 1500s — the Spanish Armada period.
Miniatures Rules
Big Battle Napoleonics Rules
Big Battle Napoleonics is a set of free wargames rules by David Wareham.
Ancients Rules
David Wareham offers a set of free wargames rules for Ancients battles. They use an alternate movement system and whole figure casualty removal.
Marathon To Marne Pre-Machine Gun Rules
Jim Gandy offers Marathon To Marne, a set of free wargames rules for games from ancient times to the widespread deployment of the machine gun.
Bonaparte Napoleonic Rules
Bonaparte is a set of free wargames rules for Napoleonic warfare. It’s in Portuguese, so your mileage may vary.