Diamondhead

Petropia is a craggy, geode-like planet where silicon-based beings evolved to build a complex society of separate underground kingdoms. While there are several different gem-based races, from ruby to emerald to sapphire, each with its own distinct abilities and culture, most Petrosapiens now coexist peacefully. After several centuries of warfare, a giant hole was ripped in the sky, revealing a universe far beyond Petropia's heretofore self-contained existence. As its recently enlightened inhabitants have now begun to turn their focus off-world, the rest of the galaxy holds their breath, waiting to find out if these crystalline warriors will wage war or come in peace.
Species: Petrosapien
Petrosapiens are crystalline beings whose bodies are formed entirely out of opaque gemstones and whose rock-hard physiologies make them all virtually invulnerable to physical attack. While jewel-like in appearance, Petrosapiens are no pretty boys. Their diamond-hard bodies make these fearsome warriors incredibly tough. Shards of the razor-sharp crystals jut out at numerous odd angles from their heads and bodies, discouraging physical contact, and also act as powerful weapons that can turn a car into confetti in a matter of seconds. Combined with their increased strength, Petrosapiens' shredding appendages can be especially devastating. Living prisms, Petrosapiens can refract light and beam-based weaponry, channeling them through their bodies and projecting them back at their source. Petrosapiens are particularly vulnerable to sonic vibrations. While a stereo blast might cause them to splinter, certain ultra-high-pitched sound waves can cause them to shatter - and no glue in this galaxy or the next can put a Petrosapien back together again.

Fourarms

Khoros is a dusty and barbaric world where might makes right and survival is a constant struggle. Due to constant conflict, the planet's culture has long devolved, turning from a confederation of thriving city states into a scorched and boundless wasteland. Nomadic tribes ruled by bloodthirsty warlords ceaselessly roam the landscape, seeking out relics of Khoros' past glory, all in hopes of rediscovering the secrets that will gain them advantage over their enemies.
Species: Tetramand
A massive species with four powerful arms, the average Tetramand is 10 feet tall with a dense armor-plated skin. Built for battle, Tetramands can take punishment as well as they can dish it out. With their incredibly strong legs, a Tetramand can leap blocks at a time at a height of several stories. While not necessarily martial artists, Tetramands have developed an arsenal of specialized maneuvers that makes use of their prodigious physiology. A favorite move is the "Big Smack" - a sonic wave produced by clapping all four hands together at the same time, which stuns an opponent into submission before a blow can even be landed. Even for their massive size, Tetramands aren't very fast or coordinated. Besides making them a huge target, the Tetramands' size also makes it difficult to get inside buildings or walk down a street without knocking things down. Bred for strength, much of the damage they inflict is often purely unintentional, which makes Tetramands almost as dangerous to their allies as they are to their enemies.

Ghostfreak

Though many legends have long spoken of it as the center where galactic chaos springs forth, not much is known about the shadowy world of Anur Phaetos. Some say it is more a dimensional realm than a planet. Lacking individuality, Ectonurites seem to be part of a dark mass consciousness that literally composes the fabric of their domain. Since no voyager has ever returned to tell tales of a visit and there is scant evidence as to the true nature of its existence, Anur Phaetos remains the galaxy’s most dangerous mystery.
Species: Ectonurite
Mysterious, transparent phantoms, Ectonurites are a pretty scary breed. They resemble a dark ethereal cloak with eerie glowing eyes. Living phantoms, Ectonurites can phase through walls and make themselves invisible. They can also inhabit other bodies and "possess" them for limited amounts of time. Ectonurites' wraithlike appearances are enough to strike fear into the hearts of species everywhere. They are rumored to have very powerful psychic abilities such as telepathy and telekinesis, the extent of which is still unknown. Being creatures of the night, intense light, especially sunlight, renders Ectonurites powerless and dispels them back into the cryptic vapors from whence they came