What if everyone around you were a doppelganger... and only you didn't know? Most GMs use doppelgangers in the same basic way: there are a couple doppelgangers who impersonate an important figure, and they may be involved with the thieves' guild. The Complete Guide to Doppelgangers sets out to develop doppelgangers into something more than that. It answers the questions about doppelgangers that have never been asked, much less answered: Why do they want to impersonate people? What do they get out of it? What is their society like? And the scariest question of all: How many doppelgangers are really out there?

This book uses the 3.0 edition of the d20 rules set, and is fully compatible with the world's most popular role playing game.