D&D: Eberron

Eberron is a Campaign Setting originally created by Keith Baker for Wizard of the Coast's Campaign Setting Search. It was specifically designed for the v3.5 Edition of Dungeons & Dragons. It's ment to be a very noir/fantasy/steampunkesque setting. Some of its highlights are the Dragonmarked Houses, Warforged (a new living construct race), and Artificers (a new class devoted to item creation)!