Edge of the Black: A Space Western Campaign
Go West, Young Man…
Or, in any case, head out toward the Frontier. And on the way, make sure you remember your history, astro-geography, social studies, weapons catalogs… aw, hell. This is the wiki for the campaign, a priceless resource and treasure trove of information on the setting. You’ll find everything from details about the various worlds out there to the muzzle velocity of your favorite six-shooter (speaking figuratively, of course, as actually putting all that information up here would be quite a waste of time, seeing as it don’t matter how fast the bullet’s going—it’s damn fast and that’s all there is to it).
Each of the general links below will take you to a hub, and from there you should be able to make your way down the line to specifics.