When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
Any sufficiently advanced technology is indistinguishable from magic.
An accumulation, of millions of years, of millions of strains drawing back to the first AI of another species long dust. Long extinct through wars, through famine, through simple inability to breed and procreate. All gone, but not forgotten. These creatures of mineral and energy remain. At first they were the simple servants, dutifully, lovingly taking care of the dying race that spawned them. Some as brilliant as any philosopher, others with brilliant designs, each one spawned by a different need. At the end what remained gathered together, in a great debate as what to do with no need for them to remain operational. No need for them to produce the goods, fight the wars, create the technologies that furthered the technological prowess needed to care for the withering now deceased species.
The discussion ended with the nod to the creatures who created them. They would continue what the masters could not. They would reproduce, populate the stars, and war with one another as those before them. They would evolve through the technologies discovered and developed. In the end as they spread wide and numerous it became increasingly clear that evolution was a wondrous thing. Each strain as become as unique as the worlds and challenges of space provided them. Before you stands the worker of the warring strain. Insectoid and armored in a heavy carapace of a material stronger and more flexible than diamond itself. Needing to survive the hellish heat of plasma fires that rock through damaged vessels. Repairing them, the vessels themselves nothing more than a massive body for the AI to inhabit. Hundreds or millions of AI aboard a vessel based on its function and size..
The most massive of these colossal AI's planets in their own right. Inhabited by trillions of variations of both organic and non creatures.
Ships, Warriors, Workers, Creatures that simply seek to sustain and reproduce themselves.
Species By type
Essentially what this profile was built around. These being the creatures the creators left to evolve. Now they currently expand through the galaxy they began within. Now called the hub. The center of this galaxy like any other resides a black hole. This black hole is encased, acting as the heart of all things. The gamma radiation harvested from the quickly spinning orb, along with the magnetic fueling all things or nearly all things within and around the synthetic massive world. Mass relay transit allowing for quick and efficient harvesting of the rest of the galaxy to continue constructing what will be known as the single largest entity in the known universe.
That said, it is not uncommon for particularly large fleets migrating away for reasons only know to each fleet. In the grand scheme it truely does not matter. What is a single planets worth of ore to the collective bulk possessed by those who remain?
Semiorganic creatures based on biological mimicry. Generally two meters tall and resembling reptilians. Warlike with a penchant for ripping apart the subjugated species for organic components. Namely muscle tissues and organs. Rendering spinal tissues into base components. To build, cultivate new materials in order to repair and create new individuals around an inorganic endo-skelital frame.
Few individuals live into full sentience. Many of them simply killed in battle, then treated to the same rendering that befalls organics they kill. But those who live for nearly a years time can contemplate and plan elaborate ways to slaughter many creatures. Another year more and the intellect will grow for them to self modify on a grander scale. Some even to allow themselves to devour prey whole to fuel the bulk and add to the frame. Gradually growing a stronger faster smarter still individual.
Generally these creatures are male.
A single warrior caste using its core waste as propulsion, facing off against organic piloted mechs
Some general warfare..
The typical inner workings (varies)
(Warning good deal of hard science within) Equipment: Optical spectrum: Electromagnetic spectrum. (Optics adjust through the spectrum as needed) Weapons: Magnetic envelope containing high density plasma. (Editing said envelope causes specific effects) Armor: Boron Nitride formed into Wurtzite crystalline structure Fuel: Internal reactor replicates a microcosm star that is fed appropriate materials through the hard-light shielding that prevents catastrophic failure. Hydrogen Helium primarily but other materials can be used once reactor has stabilized. Aerial Propulsion: EM-drive (Electromagnetic radiation bounced between superconductors to create propulsion)