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Theorems & Thaumaturgy Revised Edition
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Theorems & Thaumaturgy Revised Edition

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Advanced Arcana for the Discerning Magic-User

Unleash the powers of three new arcane classes on your campaign!

  • The Elementalist, specialist in the volatile energies of nature.
  • The Necromancer, master of death and restless spirits.
  • The Vivimancer, expert of cloning, vat-growth, and bio-sorcery.

Includes over 160 new spells, 24 new magic items, and 16 new monsters for Labyrinth Lord and other old-school fantasy games.


The Complete Vivimancer, presents a radically expanded version of the vivimancer class introduced in Theorems & Thaumaturgy, with more than double the number of unique new spells and 34 additional magic items. If you dig bio-sorcery, check it out!

Note for people who have the original edition of this title: The revised edition is not a completely new book. It is a re-edited, re-formatted, re-illustrated edition consisting of the three spell-casting classes. Many of the magic items are new and the elementalist and vivimancer spell lists have been expanded and updated. This blog post describes in depth exactly what's changed in the spell lists.

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Reviews (2)
Discussions (2)
Customer avatar
Alan K December 23, 2016 5:35 pm UTC
Hows the progresss of this as a print + pdf book going? I will buy it as soon as print + pdf combo is available :)
Customer avatar
Gavin N December 23, 2016 5:38 pm UTC
Hi Alan, I received the print proofs today, but unfortunately there were issues, so I'm going to have to do another run. Hopefully, I will have ironed out all the problems in the next proofs... should be ready to go early January.
Customer avatar
Alan K December 24, 2016 11:23 pm UTC
Hi Gavin,

I'm sorry there were printing problems, however hearing that hopefully this is the last round of proofing is music to my ears... Loved the original Theorems and Thaumaturgy and your Complete Vivamancer so can't wait to see this and your other complete books (Elementalist,Illusionist, Necromancer). Have you ever considered a time mage class? I'd lovr to see your take on a "Chronomancer"! Happy Holidays :)
Customer avatar
Gavin N January 09, 2017 9:22 am UTC
The print versions are now live!
Customer avatar
Anthony R November 23, 2016 12:55 am UTC
So, would it be fair to say this replaces "The Complete Vivimancer?"
Customer avatar
Gavin N November 23, 2016 5:52 am UTC
No, the vivimancer class presented here is still regarded as a "basic" version of the class. The Complete Vivimancer has more than double the number of new spells and dozens more magic items.
Customer avatar
Anthony R November 24, 2016 4:10 am UTC
Thanks for clarifying!
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File Last Updated:
May 25, 2018
This title was added to our catalog on November 19, 2016.