How about Deadlands? It's a pulpy weird west type setting where the civil war ended because zombies overran the battle of Gettysburg, half of California sank into the sea, and people are inventing all kinds of mad science using super-coal that may or may not be filled with the spirits of the damned. Mechanically it uses Savage Worlds, which is a fairly straightforward and chaotic good time. If you wind up liking it, there are a bunch of different settings that use it.