Mexicanski 36 is a free rules variant of Peter Pig’s excellent AK47 rules. The rules focus on the Spanish Civil War.
Miniatures Rules
Voltigeur Napoleonic Lord of the Rings Conversion
Games Workshop’s Lord of the Rings game is a marvelous skirmish system that is readily convertable to many other periods. Hey — Games Workshop proved it by releasing Legends of the Old West, a set of cowboy skirmish rules.
Voltigeur is a conversion of the system for Napoleonic gaming.
I wish I had some 25mm Napoleonic figures so I could try it.
To A Pulp Simple Rules For Pulp Gaming
Mike Fischer offers a set of miniature rules called To A Pulp (nice pun). He writes
Pulp gaming, in which each player controls a character or faction from a 1930’s pulp thriller, is growing in popularity. Such games combine the visual appeal of miniatures gaming with aspects of role-playing games, allowing the players to control the actions of tough private eyes, seemingly-helpless dames, brave explorers, and all the rest. I wrote these rules mostly for my own amusement.
The rules are made for simplicity and fast play. The game is meant for use with miniatures, but you can download a set of paper minis for free (see Section XI). All you have to provide is a few six-sided (d6) and ten-sided (d10) dice. The game is meant for two or more players, but it can be used for solo gaming as well.
Rupert’s Very Bad Day: Battle of Marston Moor
The Junior General offers a set of rules for the English Civil War battle of Marston Moor.
Medieval Siege Rules
Ryan Scow offers a set of free medieval siege rules.