Mustangs is a classic Air Combat game from Avalon Hill which, like most of their great systems is long out-of-print. Warflag, however, has a set of rules for playing the game in miniature.
rules
Blasted Planets Skirmish Rules
Blasted Planets is a set of free wargames rules for science fiction skirmishes.
Blasted Planets Skirmish, is basically a set of house rules a few friends and I use to play games with my Sci-Fi figures. I am not trying to model a “Hard” Sci-Fi environment here. I’m borrowing as much from Horror and Fantasy as I am from Sci-Fi. I mean how serious can you be. When you have, Dog headed, Gator men chasing an Elephant guy around an Omni Field generating White rabbit? There is enough “real” world framework here that basic tactics work (most of the time). But enough of a fantastical element that you really can’t count on the idea that the Fin headed alien with the pin gun is going to nail the cave man with the rock every time.
Afterglow Skirmish Warfare In The Far Future
Afterglow Skirmish Warfare In The Far Future is a set of free wargames rules for 28mm figures and is designed to be used with a variety of manufacturers.
Strongbow Feudal Warfare Rules
Strongbow is the Perfect Captain’s set of free wargames rules for feudal warfare from 1050-1300AD
Clauswitz’ War: Theatre-Level Napoleonic Campaign Rules
Clauswitz’ War: Theatre-Level Napoleonic Campaign Rules is a set of free wargames rules for Napoleonic campaigns. The author writes:
These rules are designed to be used to represent theatre-level campaigning with armies of several corps per side during the Napoleonic period. Each turn is a day, and maps covering an area from 100 – 500 miles on a side with good detail (roads, rivers, towns) should be used. The intent of these rules is not to depict campaigning 100% accurately, but to provide a referee with basic guidelines for running a Kriegspiel-type game for the generation of tabletop engagements. All dice are ordinary 6-sided dice.