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Spontaneous Generation Monsters

Spontaneous Generation Monsters


Spontaneous generation, the idea that life can arise from non-living matter, is one of several obsolete biological concepts that can be used in fantasy games to provide a storyteller with more options for monster and setting design. This concept can include living creatures that, by modern definition, are not biological, such as those made of glass or metal.

There are at least three forms of spontaneous generation and these are all covered in this mini-sourcebook. Happenstance due to magical laws is the first and the most similar to the historical definition of spontaneous generation. Alchemy is the use of natural laws to create creatures through spontaneous generation by mortals. Divine intervention involves creation of monsters when circumstances fit the requirements dictated by a god. 

“Spontaneous Generation Monsters” includes guidelines on how to create, use, and incorporate into games the title sorts of creatures; descriptions of the three distinct sorts of spontaneous generation; and 17 sample monsters, two of which include variants. 

Material in this publication was written specifically for the "Basic" version of the OGL/d20 system and can be used as-is or easily adapted for other games using the same core rules. It was written by noted game developer Derek Holland and includes illustraions by artist Andy Hopp. 

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October 2nd, 2019
The best thing about this supplement is the inventiveness of the monster descriptions. Even though I will be using these monsters in a campaign run using a completely different RPG system, the descriptions are enough to make the book worthwhile for me. [...]
March 20th, 2019
This short supplement consists of two parts. The first part explains what a spontaneously generated monster is and where/why they occur. The second part provides several examples. This can be an excellent resource for GMs looking to surprise their play [...]
March 12th, 2019
A lot of really neat ideas for monsters in here, and a bunch of Andy Hopp's awesomely bizarre artwok! [...]
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Product Information
Publisher Stock #
March #8
File Size:
11.39 MB
Original electronic
Scanned image
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File Last Updated:
March 12, 2019
This title was added to our catalog on March 12, 2019.