Elan Deluxe is a set of free rules for playing Napoleonic wargames. Once published professionally, it now is available online. This is a very well done, and interesting set of rules. The nominal scale is 1-50, with units representing battalions and regiments.
Rules: Napoleonics
Old Trousers 6mm
From Baccus miniatures, Old Trousers 6mm is a set of quick-play Napoleonics, played on a 2 foot x 2 foot board.
Muskets and Moustaches Napoleonic Miniatures Rules
Muskets and Moustaches (sic) is a set of miniatures rules for the Napoleonic era. The author writes:
It is a very simple game to play, all based on a handful of dice and rolls of 1-3 and 4-6. Obviously there is a bit more to it, but that is the essence!
Grand Army
In 1975, Don Lowry released a set of rules called Grand Army. Designed for 9mm !? and 15mm figures, it allows players to recreate large scale battles for Napoleonics and the American Civil War. Grand Army now is available online.
En Avant Napoleonic Wargames Rules
En Avant is one of Jim Wallman’s “One Brain Cell” rules, this time for Napoleonic warfare. It allows you to conduct a brigade sized engagement in about 20 minutes using 25mm – 28mm figures. Just scroll down to find the links.