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Breeding Experiment is a form of experimentation conducted by Demiurge.


Demiurge carries out this experiment in order to breed hybrid beings from various races he had captured. Particularly, he is trying to find an alternative in the way of mating between humans and demi-humans even though it was believed to be impossible.[1]


In the Web Novel, a Succubus underling of Demiurge would use charm magic to force subjects of their experiment to mate. The breeding targets are a mix of humans, orcs, goblins, and minotaurs.


In the Web Novel, a Succubus working under Demiurge's order noted the breeding experiment is proceeding smoothly as planned. However, Demiurge quickly noticed that wasn't the case since the orcs they have kidnapped are refusing to cooperate.[2]



  1. Overlord Volume 08 Side Story 2: A day of Nazarick
  2. Overlord First Half Chapter 77: Gaiden Demiurge's Ranch
  3. Overlord Volume 06 Chapter 4: Final Battle of the Disturbance
  4. Overlord Volume 01 Intermission

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