The Siege Perilous Rulebook

A rules and setting supplement for bringing the first three Ultima computer games to the Swords & Wizardry roleplaying system. It includes character creation, equipment, combat, magic, and arcane and divine spell rules, along with naval combat and space travel and combat.

Alternativní pravidla (varianty základních pravidel)Založeno na atributech/statistikách (STR, CON, PER atd.)Kostky (převážně d20)Založeno na třídách (pilot, čaroděj, vědec atd.)