Rudi Geudens has written a modification of Richard Borg’s Battlecry game for miniatures. You need a set of the original rules to play, though.
rules
Afriborea Colonial Wars Rules
Prolific games designer Rudi Geudens offers Afriboria, a fast play, card driven set of colonial rules. What’s really neat about this game is that Rudi has designed some gorgeous custom cards, as well as labels to stick to six sided dice for use with the game.
Lego Knights
Gurth offers a set of free wargames rules for using those Lego figures that your kids (or maybe you!!) have hidden under the bed.
When my kids go off to college, I’m going to have the biggest collection of Legos any middle-aged man has ever had.
Coal and the Kaiser naval miniatures rules
Coal and The Kaiser is a set of free naval miniatures rules.
Author Leonard Heinz writes:
This is a game of low to moderate complexity portraying tactical naval combat in the period from 1904 through 1918. While it will not yet you play Jutland in a day, it will let you play some fairly large actions reasonably quickly. It uses a scale of 4 minutes to the game turn and 1000 yards to an inch on the playing surface. The rules focus on big ships and big guns: battleships (and particularly the Dreadnought-type battleships that began service in 1905), battlecruisers and armored cruisers.
A l’Ombre des Aigles Napoleonic Miniatures Rules
Dan Brown offers A l’Ombe des Aigles, a set of free miniatures wargaming rules for Napoleonics miniatures.