The Scuratt'ka are a bipedal humanoid race that can be found dwelling beneath the surface of Earth. The race was completely unheard of until 2047 when MikkaDyne accidentally drilled into the outermost corridors of the being's dwelling place. This started a global war that quickly ravaged the entire face of the Earth. The Scuratt'ka had been planning an invasion for centuries, and the human's clumsy mistake was simply the catalyst they needed for the ensuing war.
The Scuratt'ka are usually roughly ten feet tall and sport skin color that is unique to their caste. They are normally heavily muscled, with thin, wispy ears and skull-like faces. Like humans, some have hair, and some do not. Sharp teeth and piercing eyes set them further apart from their distant human cousins. The Scuratt'ka are extremely strong and are capable lifting several hundred pounds with ease. They can sprint at speeds up to forty miles-an-hour and can leap great distances at will. In a close-quarters scenario, humans are completely outmatched and almost certain to be destroyed.
The Scuratt'ka utilize a caste system in determining their careers, and this is completely based off of the skin color of the newborns. When needed, all members of any caste save that of Warlord are required to complete day to day duties that involve the upkeep of the civilization.
Scientist - Red skinned scientists are the minds behind the impressive technology of the Scuratt'ka, and keep the race's world up to speed. They are the second-highest ranking members of the race. PHAESTES is the creation of Ll'thay, the most famed Scuratt'kan scientist to ever exist.
Warrior - Dark-purple skinned warriors are the grunts of the Scuratt'kan military. Completely replaceable and overlooked, they are the lowest of the castes and little more than cannon fodder.
Elite Warrior - The ebony hue of the elite warrior elevates him above his purple brethren. They are found worthy of wearing the vaunted Tauite armor and as such are invaluable to the commanders of the military. They are known to decimate entire squads of their human adversaries without breaking a sweat.
Warlord - Light, almost albino-colored skin adorns the body of the Warlord. The most coveted birth-right of all, a Warlord is born only once every 155 years. Once born, the Warlord is all but worshipped and placed in command of the entire military force. There is nothing a Warlord cannot achieve.
Unlike humans, the Scuratt'ka do not have the female gender. Instead, when the time is right for another to be born, the creature changes sex and gives birth, reverting back to 'male' soon afterward. This has led to the increasing militaristic nature of the race, and is the main cause for their incredible strength.