2016 · Kaynak kitap (oyunu geliştirmek için kurallar/seçenekler)

Theorems & Thaumaturgy Revised Edition

This fantasy roleplaying supplement adds three arcane classes: the Elementalist, who manipulates the volatile forces of nature; the Necromancer, who commands death and restless spirits; and the Vivimancer, who practices cloning, vat-growth, and bio-sorcery. It includes more than 160 spells, 24 magic items, and 16 monsters for Labyrinth Lord and other old-school fantasy games.