Race Name:
The Teu’Sopta Vanguard, formerly the Millenium Empire.
Average Lifespan: Some Teu Harmony Masters can slow the aging process using extensively trained skills in Harmony, living for over a thousand years, though no such individuals remain. On average, Teu can live for up to 250 years, though most Vanguard soldiers are long dead by then from war and conflict.
Physical Characteristics: All evidence of Teu form is derived from both collected data disks and ancient hieroglyphs found in the preservation of several cultures, both existing and extinct. All collected artworks bear a striking resemblance to each other, depicting Teu’Sopta as humanoid asexuals in form, standing at approximately 7’5’’ tall. Their bodies are fluid like in both movement and appearance, with elongated heads and sharp spindly limbs, except for the hands, which extend to quite large lengths for their height and build. Internally, there are certain analogues to organs found in other species, but with the addition of special fabrication chambers for the Harmony Nanite System. Most surprisingly, internal structures are not connected via synosial membranes to body chambers as in other species: Rather, they are suspended in a cytoplasmic fluid filled with nanite transport systems, similar to unicellular organisms.
Recovered hieroglyph fragment from site 332-BBBS, depicting a Teu of unknown designation or order:

These nanites are potent mutagenics, that have given the species a powerful psionic gift: Many Teu can project mental images into another’s mind, telepathically communicate between other Teu, and even levitate objects within a radius around them. The more powerful and gifted Vangurads, after many years of training, can even cause localized shifts in the laws of quantum mechanics at various levels of observability, either as a weapon against ships or phase between great distances nearly instantaneously. Such individuals are extremely rare among the Teu, and hold seats of great power, either as legendary warriors or esteemed leaders.
Dominant Society:
The Teu’Sopta Vanguard is all that remains of the Empire, a hastily assembled task force preserved to eventually become the care takers of the next inheritors of the stars, intended to be governed again by a newly built multi-species Empire led by the Teu. The Vanguard comprises of various ships, leaders, researchers and engineers scattered throughout the galaxy on various celestial bodies and in artificial stations hidden well and awaiting discovery.
Moral Values:
The Vanguard has two objectives: Re-instate the original Empire, and defend life from that which could destroy all. As such, their main attitudes toward the galaxy is that of superiority, holding themselves in high regard as protectors and leaders. They have little tolerance of races that mindlessly eradicate or assimilate organisms, and will wage holy wars against them for thousands of years, if that is what it takes to secure the future of the galaxy.
Religion:
The Harmony – Evolving on a world rich in nano-robotic machines left behind by their predecessors, the Empire held the creators of these devices in high regard, worshiping them and praising them for what they believed to be a divine gift. In essence, the Harmony is more of a way of life, individuals training and learning to master the many teachings and masteries it presents. Harmony also teaches to respect all creatures, great and small, killing only when others are in danger of annihilation. These stringent codes of practice are what all Vanguards abide to, and it is better to die than to violate the precious laws of Harmony.
History:
Almost 300 000 years ago, the beings who would eventually become known as the Teu'Sopta Vanguards began their expansion into the stars, eager to explore and investigate the many wonders of this galaxy, making sure to not interfere with the many evolving life forms and sentient species they came across. Uncontested, they built a grand empire across the cosmos, drawn to the cause of preserving all life they came into contact with, and further understand their place in the universe. Eventually, they met the limitations of the current FTL drives they had designed, and discovered they could not advance any further into the universe without new breakthroughs regarding their knowledge of FTL travel.
Before this work could be completed, the Empire had noticed, for some time, the rapid expansion of their galactic neighbors, the Crayvens, whom they had been peaceful with for the majority of their existence. Fearing that they were quickly going to become a threat to the Teu cause, it was decided that they must be stopped. And so, they allied with another race present, the Cephalrrior, and set about to destroy the Crayvens, once and for all, in the event the Empire called The Schism.
The fighting lasted for millennia, as each side was bogged down in terrible conflict that resulted in the deaths of billions from all sides. As time wore on, it became evident that the Crayvens were unlike anything the Teu had faced before: They used the very same weapon against them, to create vast armies in impossibly short time, and soon, The Teu had been beaten back to The Keep, the last strong hold of the Empire. A vast mega structure taking up an entire solar system, war lasted there for almost a hundred years, while the Teu exhausted every tactical option available to them, as they couldn't allow the secrets of The Keep to fall into Crayven hands.
It was decided that the Teu would elect a small team of survivors, called the Vanguard, and utterly annihilate The Keep, both preserving their secrets and destroying the Crayvens. And when all preparations were set, the Teu unleashed the entirety of their remaining people's combined psionic power, sending their star into supernovae and wiping out the Crayven fleets present at the battle, but also destroying everything that their empire stood for: The last bastion of the empire was utterly annihilated, and all remaining Teu were vaporized, having been harvested forcibly for this final desperate attempt at victory. Only the relics of their past have been discovered, holding many secrets waiting to be discovered.
Technological Overview:
Teu technology is devoted towards their innate psionic abilities, and had found it's way into all areas of life, from industry to military. Nearly all Teu used these abilities in some way, to the point that hands actually became obsolete, replaced by simply suspending tools and weapons around them. The most important factors that influenced their tech, however, was simply Mithril Plates and Psionic Interlock.
Mithril Plates: Nothing more than standard alloy metals shaped into functional parts, imbued with the nanite surpluses in the Teu body of the engineer, these devices could be given the intelligence of the designer, and thus replace the need for large crews and complex maintenance duties. Each ship could be designed and controlled by a single Teu, with lesser parts (such as weapon or shield systems) orbiting the ship and maintained by other Teu operators. This advantage allowed for much larger fleets with less crew, and adaptable ships that could modify parts mid battle for certain scenarios. These Plates could also act as AI intelligences, gathering critical warfare data and advising tacticians of the current state of the battlefield.
Psionic Interlock. Related to Mithril Plate operation, this rare gift could allow some Teu to completely control vast numbers of both Nanites and plates at a time, as well as harvest the ananites present in other Teu, to effectively transform the Teu soldier into a near unstoppable force of nature, destroying various large ships with ease and obliterating dozens of fighter craft in a single salvo of quantum weaponry fire. Only four individuals have ever been known to possess such power, and stories abound of these champions laying waste to entire fleets, provided they had significant naval support. O'kra, Matron of Desolation, is believed to be one such individual, though others surely would have been preserved at the end of the Schism.
Weaponry:
The Empire were firm believers in the power of quantum weapons, both on the soldier level and battleship level.These systems took advantage of both their natural psionic ability nd the sheer miniscule nature of nanites, to effectively break already accepted laws of physics to give the Teu the upper hand. These weapons range from infantry Chaotic Field Randomizers (CFRs) to Mass Entropy Ship Cannons, All the energy requirements for such WMD's were powered by dedicated fire teams, and would quickly be ineffective after a short time, due to exhaustion from the main gunner crews. As well as this, most ships were not actually outfitted for extended naval warfare, and made easy targets for enemy commanders who could spot these lapses in fleet integrity.