I never thought I would ever make this official, but here is a full concept of what has been seen at least... 10 times in my dreams in a period of months. Appearances and name have both been said and shown to me in either one of them, as well as other related machinery, so don't question why this being is called what it is called. I know some people would make a comment, so, don't. There is far more to it than what I'll mention here, so I'll just leave it at what has to come.

Some may remember this drawing, which is also related to it: https://www.furaffinity.net/view/42798082/

I allowed my boyfriend to take charge of playing as this being for private roleplay sessions because he... well, BOTH of us really grew attached to it. I don't like playing as characters that my mind feels... well... quite drawn to. This is more of a fun concept really. Neither one of us really "owns" it since it's basically a product of my dreams that seems a little 'too' real with all the things I saw... Anyways.

S.A.R.S., a bio-mechanical entity from an unknown place. It is mostly silicon-based, this one here being its most mobile form. Other than that, it might be a ship, a vehicle, a plane... anything really.
S.A.R.S.' is an individual entity. It belongs to no species, has no siblings, no parents. It came to be out of pure elementary power, one could say. The core/source/brain which is basically S.A.R.S. personality core is stored within a chamber of an abstract-looking vessel that constantly travels through space, never sitting still.

The robotic form was biologically grown and mechanically manufactured. It has a lot of bio-technological parts of both mechanics and hydraulics within itself, making its body quite versatile and vigorous. To act and move around autonomously, the bipedal form is so to speak a "node" of the actual brain which sits inside the ship itself. The robot has its own brain piece, both brains as a unit constantly communicate with one another, on a wavelength only the ship and robot can read.
Each limb can be bent in any direction, hence why this form can also adopt a more feral-looking posture. It has organs that conduct important tasks-, and it also has a form of liquid stored inside of its body which functions as blood, lubricant, cooling as well as indicator fluid. One specific organ produces a natural amount of this fluid. More can be restocked on the ship should the robot lack fluid.
When S.A.R.S. feels emotionally affected by something, the pumping of fluids through the body dramatically increases, the brain expelling a chemical that forces the fluid to glow demonically red. It can in fact gain so much glow, that the entire body would appear fiery red.

Despite S.A.R.S. evil appearance and most of the time, vicious and mysterious personality, he wouldn't dare to even hurt a fly... unless it leaves him no choice. With him still being a semi-organic being, he has emotions like every other creature that exists. Emotions which can be expressed, affected, as well as broken. Emotions however are expressed and interpreted differently in comparison to a human. He barely has any understanding about any creature living out there, and he doesn't really care about any other creature that exists unless he is confronted with it in any way.

S.A.R.S. doesn't speak vocally but does create a combination of rattling and hissing sounds, like a language, when he feels that it is necessary to express himself with sound. Otherwise, he tends to read others' minds in order to understand what they are thinking, decoding the wavelengths their brains expel.

In the setting where S.A.R.S. exists, he lives in harmony with the human vessel I play. There will certainly be more art... hopefully.
And hey, I finally have more time to create stuff again. One week and I'll be free for some time...