Hollow Earth, or Agartha, is a little sandbox world I like to play around in sometimes. I don't really intend on doing anything with it (comics, animations, or even develop characters) I just like to play with the setting itself.
My version of Hollow Earth is loosly based off of all the current itterations of the same setting, and all the wacky conspiracy theories as well. Its a "lost world" situated inside of a planet. It is illuminated by an internal crystal sun called Atoma. Agartha is populated by dinosaur worshiping lizardmen samurai, friendly treefrog people and the "Illuminated," an aloof race of technologically and magically advanced people who migrated underground after their city on the surface world was destroyed thousands of years ago.
Agartha is also inhabited by evil monsters. The Illithids are constantly trying to use the power of the Atoma to awaken their sleeping, eldrich gods. The Naga, snake queens of Agartha, believe all of Hollow Earth belong to them, and want to enslave the entire population.
Hollow Earth is full of dinosaurs, giant insects and any prehistoric monstrosity you can imagine.
If anyone has any ideas about the denzians and landscapes of Agartha, please, feel free to draw it, I would love to see how others imagine the world in the middle of the Earth.