The new world: Mythos

The discovery of a habitable planet was one of the most exciting events to occur in the history of earth. Advances in space travel and cryogenic chambers was a top priority for centuries following its discovery. Because technology about space travel advanced faster than space travel itself. Incidentally, the first ship to arrive at this new world was actually the last to depart earth. 

Nymphs:

The Nymphs named the new world "Mythos" and its inhabitants "Mythan" and they quickly got to work terraforming the entire planet. Within a few hundred years, the whole globe was like a beautiful garden with ecosystems in place. They brought with them every plant, race and animal from earth. Including Seraph, Sirens, and Satyrs. As well as a race of artificially intelligent beings called "golems"

Demons (Regothians):

During the terraforming process, the Nymphs discovered that deep under Mythos surface there were enormous hollow spaces with unusual properties indicating that they did not form naturally. An excavation was quickly under way. When they finally dug deep enough to open up one of these caverns they discovered a buried an entire abandoned city that was perhaps millions of years old. The technology of this city was very strange and appeared far advanced above their own-- such that they could not understand it. Teams of Nymphs attempted to make sense of the city and what happened there. It was concluded that the entire population of the city had gone through some kind of bridge that connected to another world. They decided to try to open the door. 

Eventually they figured out how to turn back on the device to open the door. The moment the bridge opened, hordes of hideous creatures poured through it like a wave of vomit from hell itself. The door was shut as quickly as possible, but the demon-like monsters began slaughtering the Nymphs like they were children. Some of them rushed past the Nymphs and escaped to the surface where they quickly disappeared. The Nymphs managed to kill someone of them, but ultimately, the hole to the cavern was collapsed to prevent any more of those creatures from escaping. Many Nymphs were killed in the process. The remaining Nymphs on the surface fought with the demon-monsters for the next several hundred years and it nearly wiped them out, The demon-monsters strategically destroyed all of the Nymph technology that they could get their hands on, which crippled the Nymphs as they were unable to reproduce their own technology. 

Narshoth (Dark Elf): It was the arrival of the Dark elves that saved the planets inhabitants from destruction. Observing what was taking place in advance during their travel, the dark elves had prepared an army with the most powerful Narshoth strains. The war killed most of the Dark elves, who were in turn replaced by Ghouls who brought a new threat. The Demons also managed to destroy much of the Narshoth technology and ships. 

Ghouls: With the Demon-monsters held at bay (or in hiding), the ghouls now presented a new threat of their own. Nymphs and Dark elves work constantly to try to keep them under control.

Munar (Moon Elf): The Moon Elf arrival helped slow the death on the planet but at great cost. At their time of the Dark elves greatest need, much of the Munar isolated themselves on a small island in the middle of the ocean. The Narshoth Dark Elves were disgusted and enraged by the selfish, and self-preserving cowardice and vowed for vengeance against Munar for abandoning them in their time of need. Most of the Narshoth were destroyed fighting against the ghouls and demons. 

Giants: A ship of Giants and Cave Elves arrived on the planet. The Giants had their thralls build an enormous wall to keep the threat of the ghouls and demons contained. They relied on their superior technology and the slave labor to enjoy extravagant lives and promised to keep the land safe from Ghouls and demons. 

Monsters: The giants then employed their genetically engineered monstrosities (goblins, trolls, ogres, etc.) on the Ghouls and demons to try to drive them back, and managed to have some success.

Tarau (Wood Elves): The wood elves arrived in the midst of the war and kept to a place called the Tarau forest to find safety relying on stealth, agility, and the utilization of the creatures of the forest for safety. Their arrival gave the Cave elves a vision of what life could be like if they were not slaves to the Giants. The wood elves were able to keep the Tarau Forest mostly clear of goblins but they would not venture far from their trees for risk of being killed. 

Thrall (Cave Elf): The Thrall became very numerous, and to trim back on their population, many of the Thrall began to be sent into combat against the Ghouls and demons to defend the Giants. One of the Thrall became a powerful general against them and his cunning and prowess in combat earned the respect of the other Thrall. He tried to ask the Wood Elves to help him liberate his people, but they would not help because of the power of the Giants. The Thrall general resorted to sabotage of the Giants space ships and generators, which caused the giants to be almost defenseless against numerous Thrall, who banished the Giants to the Frozen North lands. With the technology of the Giants gone, the Monsters were no longer in subjection to the Giants, and they began to rebel, resulting is raids by the various monsters. The Thrall beat them back as best they could, but had to hide behind many of their castles and walls to stay safe from threats now that their technology was lost in the sabotage and they did not have the means to recreate it. 

Sky People (Humans):

The humans that left long ago were scientists and explorers. They had the education and capacity to recreate much of their technology if it were to be lost. They arrived at a time when the Thralls were desperately disadvantaged with the Giants to the North and the Ghouls, Monsters and Demons to the South. The ships that came from the sky loaded with advanced technology saved the Elves who named them the Sky people, or sky giants, as they were almost double the height of the elves. The Sky people ultimately saved the day and with their technology beat back the monsters.