The Perfect Captain Yahoo Group has a variant for their Red Actions game for the Indian Wars called Crazy Horse’s Fury.
wild west
Indian Wars Rules
Fred Diamond offers a free and simple set of miniatures rules for playing pony wars — US Cavalry vs Indians.
Sandpit Showdown: Wild West and Civil War Rules
Sandpit Showdown is a set of free wargames rules for backyard battles with army men in the Wild West and Civil War.
Paper Western Figures
If you’ve wanted to try out some of the outstanding western games that are in print these days, but don’t hvae the figures, you could download and print these sheets of 19th century western gunfighters, animals and other assorted things.
Pony Wars Website
Tim Greene has a good site for playing miniatures wargames set in the victorian American West. There is lots of information on the combatants, plus battle reports and rules reviews.