2009 · Kaynak kitap (oyunu geliştirmek için kurallar/seçenekler)

D20 Rules Options: Volume #1, Second Edition

A rules supplement for d20 fantasy and modern games, providing optional systems and advice for Games Masters. It introduces revised damage rules, Spellcraft checks for all magic users, and an armor system based on damage reduction and class-linked armor bonuses. Additional sections cover experience point awards for role-playing, penalties for disruptive player behavior, and other ways to add realism and structure to a campaign. This is an Open Gaming License product.