Blades of Bronze is a set of free wargames rules designed for short skirmish 15mm ancient wargames. The rules revolve around the ability of the leaders to give orders to the troops.
Miniatures Rules
Seventh Spell Fantasy Skirmish Game
Seventh Spell is a set of free wargames rules for fantasy skirmish games.
Battle For the Shrine Heroscape Scenario
Battle for the Shrine is a Heroscape scenario in which players must race for a position and hold it for three turns.
Science Fiction Company Action Rules
The Grid Based Wargaming Blog has a set of free wargames rules for company level units using 28mm models and a 6 inch grid.
Jack Scruby’s African Colonial Wargames Rules
Here’s a set of African Colonial wargames rules from the Godfather of American Wargaming, Jack Scruby.