A Custom Ruleset for Vampire: The Masquerade From the introduction: This book is an adaptation of White Wolf Entertainment AB’s Vampire: The Masquerade. It is a streamlined, high action rules set developed as an expanded, dice-based version of rules found on the Los Angeles: Out of Control MUSH, which were based on the Sanguinis Nobilis MUSH rules, which were in turn loosely based on the Mind's Eye Theatre rules. It is assumed readers will have some basic familiarity with the Storyteller system.