Black Dog Game Factory was a label used by White Wolf, Inc. for the publication of a number of books in their original World of Darkness RPG line. Books published by Black Dog had adult or mature themes, though not all Black Dog-published books dealt with sexual material. Some are labeled as adult because they deal with themes of strong violence or evil (such as Hunter Book: Wayward), religious themes (Cainite Heresy), or controversial subject matter (the Holocaust-based Charnel Houses of Europe: The Shoah).