The Cool Guy or Dweeb site offers a set of Wars of the Roses skirmish rules.
rules
Away Boarders War of 1812 Great Lakes Naval Rules
Away Boarders is a neat little game for a little-considered theatre of war: The Great Lakes in the late 18th and early 19th centuries. The author also includes some nice 2-D paper models of the ships, as well as counters.
Timeline 300 Steampunk Rules
Timeline 300 is a set of steam-punkish rules for a now-defunct line of miniatures. The rules, though, can be applied to other figures.
Hail of Fire WWII Rules
Hail of Fire is a set of pay-what-you-want wargames rules for company level games in World War II. The authors write.
“Hail Of Fire” is a company-level, WWII themed miniatures war game designed to be both simple and easy to learn while keeping both players engaged in the action! And best of all, the rules are only few pages long! So print out the PDF, throw some models on the table, and jump right into an exciting tabletop brawl!
Using a fast, interactive turn sequence, players are always in the fight. The addition of hidden action points, fast and easy deployment, and a delayed combat resolution system ensures that both commanders will be fighting the friction and fog of war as much as they are each other!
SAGA Reference Guide
Here’s a nice four-page reference guide for SAGA games. It’s really got all you need to avoid working your way through the rule books.