Majestic 12 Games has these demo rules for their For the Masses Fantasy miniature wargames system. Here’s their blurb:
For The Masses is a complete fantasy mass-combat wargame system. But it is also much more: The flexibility of the system allows players to use any fantasy setting and armies to play out famous fantastical scenarios and ancient epic battles. Several sample army lists are included in the book but the real strength of For the Masses is the unit creation system. This system encourages players to be creative, use their imagination and have fun, which is the way wargaming should be.