The Underworld rules are available in two separate rulebooks; the Core Rulebook, which contains all of the main rules pertinent to new players, and the Soul Frag Book, which contains special skills that can be unlocked with Soul Frags, a type of points awarded to players who donate props and costuming or volunteer their time to Underworld.
As the Soul Frag book changes, uncommon, rare and obscure races are moved in and out of purchaseability. See the extended Appendix to see all the races!
Questions about the rules? Feel free to ask our New Player Liaisons!
For more complex and nuanced discussions of rules and mechanics, see our worldwide rules forum here.