There is a new gaming coming out in September called wild west Wild West Exodus. It's a Sci-fi western set in an alternate past.
I have the early rules and will be in Abington on Saturday to try it out. I will make a list for eachfaction. Right now there are 4. The union army, the outlaws, warrior nation(Indians with spirit magic. Some are in animal form like Geronimo who is a large bear), and the enlightened(scientist that use robotic exo-skeletons to control an army of the dead. All factions have real historical people like Jesse James who has a robotic arm. There will also be a mercenary faction that will work for anyone. They are based on the crew of serenity.
There is a kickstarter program for this game and they have some great deals. I have already joined and can't wait for this game.
So come to Abington Saturday afternoon if you want to check out