Demiurge is a fictional cosmic entity in the Marvel Comicsuniverse, based loosely on the concept of the Demiurge. It is the sentient life force of Earth's biosphere, and the father of Atum. In superhero comic books, cosmic beings are fictional characters possessing a great deal of power and serving some natural need of the fictional universes they are suited in. ... Marvel Comics is an American comic book line published by Marvel Entertainment, Inc. ... Various characters of the Marvel Universe. ... It has been suggested that Nebro be merged into this article or section. ... The term life force or lifeforce can refer to: The soul, spirit, or other vitalistic energy. ... Earth (often referred to as The Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth in order of size. ... The biosphere is the part of a planets outer shell â including air, land, surface rocks and water â within which life occurs, and which biotic processes in turn alter or transform. ... Atum is a fictional cosmic entity in the Marvel Comics universe, based loosely on the Atum of Egyptian mythology. ...
Chthon is the archetypal Class One Demon, one of the Elder Gods created billions of years ago from the Demiurge, the sentient life force of Earth's biosphere, shaping the early development of Earth.
Chthon, like his sister Gaea was born a god of the Earth, but he was not of the lifegiving soul that she was, instead Chthon was a being of the dark cold soul of the grave and the underworld.
As with the majority of Elder Gods, Chthon began degeneration into a demonic state, and when the benevolent Gaea mated with the Demiurge and spawned Atum, Chthon saw the threat this new "God-Killer" posed.