All sections in this compendium are ongoing and any information, observations or corrections that can be provided by you, the reader, is much appreciated. Hope you find it useful!
Also if you want to send in any of your own fan-made creations to share with the rest that would be great!
Peoples of the Known Atmos
Aquiosians: Fish humanoids native to Terra Aquinos
Blizzarians: Humanoid rabbit/coyotes that live on Terra Blizzaris all of whom speak with stereotypical Canadian accents; they use the word "Eh" at the end of most of their sentences. Blizzarians have a love of risky or just plain foolish stunts, acting like extreme sports enthusiasts.
Giants: Most well known is Gundstaff; keeper of one of the largest collections of rare crystals. Apparently on good terms with Cyclonia, but his motives are his own and he prefers to be alone.
Humans: The most widespread people in the land, they inhabit almost every Terra but are by no means identical where ever you go.
Merbs: Species of tall cat-like, cold-blooded humanoids that are usually paranoid and pessimistic as a result of the dangerous environment on their home terra where natural disasters are constantly occurring
Monster-people: Most well known of these is/are The Producers. Staldorf and Walder are humanoid, from the waist up, but are connected from the waist down to a giant green monster with many tenticals.
Murk raiders: Pirates that attack any ship foolish enough to wander into their base; Terra Deep, though they sometimes wander out to search for valuable treasure across the Atmos. Led by Captain Scabulous the Murk Raiders strip any and every useful item from the ships they capture, including their crews.
Nightcrawlers: Elite group of assassins that under the direct command of Master Cyclonis. Each member wears black armor and has similarly black skin with red eyes. Their armor is strong enough to withstand a crystal-based explosion at point-blank range, and now after an upgrade, is no longer sensitive to light, but may not be able to handle extensive exposure to direct sunlight. They are able to sense crystal power at a distance and are quite vicious. One possible explanation of their origin is that they were once human but were somehow turned into these beings.
Raptors: The Raptors are lizard-like humanoids that inhabit Terra Bogaton. Most are pirates and rogues but some are peaceful scientists.
Skeeler: Most well known is Ayrgyn; a shape-shifter known for his amazing training tactics. He can change at will from a Mynall bird to a human, and has powers which border on functional magic.
Sky Sirens: Beings who take on the appearance of a woman and have the ability to conjure illusions from a person's deepest desires. They exist to lure ships to their doom in the Great Expanse.
Spider-people: Most well known is the Colonel; a large, four-legged, spider-like gangster, infamous throughout the Atmos.
Wallops: Species of stereotypically dimwitted yet amazingly strong creatures that resemble humanoid rhinos that inhabit Terra Wallop. The teeth of this species have the ability to grow back if knocked or pulled out.
Worm-people: See Sky Worm (Ch. 2)
Credits
Thank you to Mahou Shoujo Crystalic Katomi for the current and future help!
Information references include Wikipedia and the stormhawks website