Pete Pellegrino has written a set of free miniature wargames rules called Damn The Torpedos. In the game, you customize your ironclad, and then take it out to fight in the Cvil War battle of Mobile Bay.
rules
Civil War In 30 Minutes Matrix Game
The Civil War in 30 Minutes is a matrix game designed by Matt Fritz to help his students understand the American Civil War. If you haven’t looked into matrix games, you will find that they are useful in running meaningful campaigns.
Dr. Who Miniatures Rules
Here’s a link to a set of Dr. Who miniatures rules.
Astral Dreams Space Opera Miniatures Game
Astral Dreams is a free miniatures game based on the d20 Open Gaming License system. The game’s background is based on a short story of the same name, which involves a war between humans and robots.
Modern Solo Infantry Squad Combat Rules
Mike Haran offers a set of rules for solo miniature wargaming play in the modern era
Mike writes:
This is a solo game depicting modern warfare. The player pits his ten-man squad and its support AFV against a similarly equipped opponent using a solo system. The enemy appear at random positions upon the table, moving and performing actions as the game proceeds. In order to perform any of the actions the player and the opponent must expend impulses. The player decides which men and /or vehicles he will move and/ or combat .He then totals up how many impulses he will expended and if they are within the limit he proceeds. When the virtual players turn occurs the solo sequence is followed, the player performing all of his actions for him using the virtual player rules.
You can download the file here: