Kith'takharos is a fairly unique campaign setting. Don't think of it as a campaign world, it is more of a micro-setting to be dropped in a larger world (assuming your players are concerned about the larger world and not just their immediate surroundings). Most if not all of the "fluff" (not system specific) info contained in this download can be found on the White Haired Man website. Game stats in this module is for the 3.5 rules. There is enough here to get a GM thinking about future plot hooks. It is, however, not your usual Forgotten Realms / Greyhawk / Kalamar/ etc. environment. It may not work for everyone so do yourself a favor and go to their website first and get a free view of sorts. At $3.50 this module is a bargain. Then again, the "crunchless" fluff available on the website is even moreso ;)