Xenogenesis in Fantasy Settings (d20)
Xenogenesis is the concept of one species giving rise to another. There are at least four forms of xenogenesis¸ Will¸ where one creature causes its flesh to mold or spawn another; Alchemy¸ where the process of creation requires chemical substance and laboratory processes; Natural Laws¸ where the laws of the universe cause the creation of new life from old; and Blood Auras¸ where one creature causes another to give birth to a third.
"Xenogenesis in Fantasy Settings" includes guidelines on how to create¸ use¸ and incorporate into games the four variations of manufactured creatures and stats for 27 sample monsters.
Material in this publication is stat'ed for the versatile "Basic" version of the OGL/d20 system by game developer Derek Holland and can be used as-is or easily adapted for other games using the same core rules.