The Perfect Captain’s Swamp Fox is a set of rules for American Revolution campaigns.
rules
Hoplomachia Peloponnesian War Rules
Hoplomachia is a set of free wargames rules for the Peloponnesian War.
2d6 Sword and Sorcery
2d6 Sword and Sorcery from Two Hour Wargames is available as a free pdf download. It is designed as a beer-and-pretzels style adventure game.
Titan Rampant – SciFi Dragon Rampant Variant
Titan Rampant is a free variant for the commercial Dragon Rampant rules. Ownership or access to Dragon Rampant is required for play.
Free Project Z Rules From Warlord
Warlord Games is offering a free pdf of their Project Z zombie miniatures rules.