The Earthrealm

The Earthrealm is the main setting of Mortal Kombat franchise, it is Earth created by Elder Gods. Earthrealm is often the target of conquests because of it's status as an universal power node. To protect the realm from these conquests, a guardian is assigned to the world, the role that ends up being mostly played by Raiden. In Worst Hero And Villain War Ever, Earthrealm expands to mean the entire Universe where Earth is.

Sub Realms

 * Videoland
 * Parallel World
 * Banipal Witt
 * Hell
 * I. M. Meen's Magic Labyrinth

Origins
Earthrealm was one of the many worlds created by the Elder Gods, but out of all the ones created so far, it became the first to produce many powerful beings who existed in the awareness of Elder Gods, and even those who could directly take on them, like Kronos. Earthrealm was born from the Seed of Life, that originally belonged to powerful demon, Adam. Head Angel assigned herself to be the Head Goddess of the Realm, and Raiden became the guardian. Through Kronos's blood, new Gods were born to exclusively guard the Earthrealm, which included the Egyptian Gods, the Greek Gods, the Norse Gods, and the Dark Gods. Most of these Gods lived in the planet they all spawned in, Earth, and Earth became the planet with most amounts of Gods. It was also the birthplace of Malmoth, who would become the biggest living evil in this dimension.

Gods were much less common in other planets with living organisms. Most planets ditched their Gods early on, and started to quickly develop themselves technologically. Humans only later on started abandoning their gods, and most of them lost ability to magic, an unique gift granted from Gods to mortals. Once magic disappeared however, the development of technology started getting faster ironically enough, and Industrial Revolution launched a new breakthrough in science and technology. After Industrial Revolution, the old technology of organization known as Neo Atlantis was discovered, which led to Earth's science developing to new, unseen levels, making Industrial Revolution look small in comparison. With Earth's unique status as a world of many Gods, and precious artifacts and technology, many planets became interested in what Earth had. Despite Earth's status as a melting pot of different powers, it still hadn't succeeded in creating lasting space travel, which is why it became unintentionally secluded from other planets, while most planets in the galaxy were ruled by the Galactic Commission.

One human however was more than willing to give out the location of Earth to several criminals across the galaxy through mysterious means, which led to Earth falling under attack to an Alien Invasion commited by an organization located in Mars known as BAHRAM. Earth became the central focus of Malmoth's next plan, to bring on the ultimate battle between good and evil known as Ragnarok...