6+ Rules are a set of rules for the horse and musket period in 6mm. It uses no dice
Blaze of Glory is a set of free wargames rules for Wild West skirmishes.
Heart of Oak, Skin of Iron is a set of free wargame rules for naval combat in the years 1852 - 1870.
Splendid Little War is a set of free wargames rules for the Spanish-American War.