While I briefly covered a bit about the concept of something from the Wild West happening on the Planes with my article about Steampunk Planescape, in the part about The Cabal of Perfected Moment gunslingers.
It occurred more to me about some things from the Wild West might fit into D&D (yes I'm aware there's Deadlands as well), with Cowboys on Wyverns and Dwarven Sheriffs and the like. I'm thinking that the best location for a Western to happen on the Planes would be on the Outlands, simply because it seems to match the environment the best. With plenty of small towns spread through the wilderness, and plenty of potentially dangerous characters involved in the vast expanses of the changing and unknowable Hinterlands. Of course even other planes could fit some elements of a western, such as Bytopia, Ysgard, Arborea, Carceri or even the parts of the Abyss like the Plane of Infinite Portals. Anyways it inspired me to draw a picture on the matter...
Well, as far as that went I think the best idea to come out of that drawing was the Flumph with the Cowboy hat. And even if one day might that Flumph might be seen riding off into the sunset on his trusty Gelatinous Cube, I'm wondering if anyone else has strange ideas to blend with a western.
My one concern with this idea is what is summed up in your picture (P.S. I love the cowboy-flumph): the presence of firearms in a campaign.
I disallow firearms in my campaign (except for a Chinese nation that has slow-loading canons for their ships) because once bullets are involved, combat can quickly boil down to some very arbitrary desicions/rolls (I haven't seen how other RPGs deal with this, so I apologize if this is an unfair summation).
Do you plan to bring in guns? If not, how would you create a Wild West atmosphere without guns for gunslingers?
I do like the idea of adding some atmosphere to the Outlands (hint to the Planar Renovation Project). So, I'm willing to explore this some more. After consulting Wikipedia, here are some common themes to "westerns":
-Enduring the harshness of the landscape. Conquest of the wilderness/frontier
I don't think of the Outlands as harsh but this could be easily tweaked. The only difference is that there was a motivation for pioneers to suffer the hardships of the Old West. What would be the motivation to colonize the Outlands?
-Subduing the "savage" native people
Again, not sure how to tie this in. Rilmani = Native Americans? Introduce a new race?
If there were a motivation for people to colonize "spire-ward", then the Rilmani might work.
E.g. If there are increasing amounts of precious metals or richer farmlands found as one goes spirewards, then prospectors and ranchers will move there. Each group moving spireward would bring their respective philosophies with them. The rilmani would obviously push back from this philosophical incursion. Additionally, the further the pioneers pushed sprieward, the stronger the rilmani would become and the weaker the pioneers (or at least their magic) would get.
And if you chose to do so, instead of using the native people as a group of "others" that the PCs must fight/conquer; you could take the more modern approach (in cinema, etc.) that the PCs might learn something from this foreign (to them) culture and then have to go back and convince the settlers that an accord can be reached. Although there should always be elements in both groups that don't believe they can co-exist and who would be trying to rekindle the conflict.
[Side idea: if cattle graze near the towns to the Lower Planes, what side effects get into the beef? Extra-spicy? Something more dangerous?]
[Side idea: instead of or in addition to colors denoting the ranking/status of the rilmani, would colors be better for different tribes/nations of rilmani with different but related cultures?]
-Small outpost towns
As you said, already in place to some degree
-Codes of honor in one-on-one duels
That could work
-Lack of a powerful agency of law
That would also work with the Harmonium playing the role of the sheriff who has too much ground to cover resulting in "justice" being played out in personal duels
In the spirit of differing philosophy, perhaps other groups on the chaotic side of the Spire act as the "sheriffs" there. Imagine a Xaositect sheriff preserving freedom and enforcing justice against any incursions from some "lawful riffraft"
-Semi-nomadic wanderer, usually a cowboy or gunslinger (acting as a knight-errant to deliver justice)
Again that would work fine. Of course with all the differing philosophies, each gunslinger type would have his own idea of how things should be.
Based on something read on the Wiki page, would the Planescape version be more like the ronin culture of Japan? (Which would answer my reservation against gunplay)
Would you want to incorporate steampunk elements of "The WIld Wild West"?
The idea is intriguing but I'd like to hear more