Ultra Space is a seperate universe, it’s own plane, with its own laws of reality, life, and power. While the world of Classic Pokeau is that of a planet, Ultra Space is instead a plane that spreads infinitely in all directions – with different biomes scattered throughout its surface.
^{See? And that’s just the start of it. Look, the Minecraft equivalency was unintentional, I promise…}

Originally, it was just the Skymother who came to be in this blank slate of a world – as a child. With her childlike imagination, she created herself an extravagant moon palace – operated by an automated control system that could do anything. She called this palace Lunaires.
But even with every inanimate luxury, Skymother was… lonely. And looking outside of her palace out into an empty void wasn’t exactly her idea of a view.

So, Skymother’s fragmented feelings of loneliness and isolation manifested themselves into her new best friend – someone a bit like her she called ‘Id‘. Together, these two friends used their combined imaginations to bring the surface of Ultra Space to life, giving it diverse environments and interesting creatures.

While Skymother quickly found a fascination with a class of species she dubbed ‘humanforms’, Id often took more experimental approaches when creating their own species to fill Ultra Space with. Regardless of origin, these beings and creatures would be ‘prototyped’ in the large atrium located in the lower half of Lunaires, protecting them from harm until deemed ready to join the surface population.

Since the time of prehistory for mortals, the Ultra Deep Sea has served as some sort of ominous entity. It was the subject of countless tales and folklore, until technology evolved to the point where the sea could be ‘breached’.

Then, it was discovered,
Nihilego. A parasite in possession of a neurotoxin capable of instant death on contact, that approached with no warning and seemed to fade in and out of perception seamlessly. It was a perfect monster, a threat to life held in the stasis of an isolated abyss.

Since then, the UDS has become a significant cultural icon throughout central Ultra Space – and a graveyard for those foolish enough to try and figure out its secrets. Particularly, the Deoxian Empire has interest in the properties of nihiltoxin – with a street drug named nihiline being created as a side effect of their heavy experimentation.

However, as of Arc III, Id was coerced into making the UDS less of a waking nightmare, and using it to grant new life to those who’d been lost to nihilego. As a result, the UDS entered its ‘lighttouched‘ era, which you can read about here.

While most of the world’s hubbub is naturally pointed towards Central Ultra Space, the world is still an infinite plane in all directions. Because settlements grow more sparse the farther out one goes, the areas past the central cluster are collectively referred to as ‘The Farlands’.
However, there are two distinct ‘divisions’ of Farlands, dependent on the area’s sustained damage from the Darkest Day.

The Northern Farlands, found beyond the Ultra Dirge and Ruin, is a desolate wasteland frozen in a state of nuclear winter. Not much of what was before remains here, though some imposingly large compound structures from the Deoxian Empire remain.
While the allure of these compounds may attract treasure hunters and thrill seekers in a similar way the ruins does, dire warnings and hostile architecture posted closer to the edge of the Dirge tend to do their job quite well. Those ignorant enough to bypass the warnings, though… usually never get seen again.
This is not a place of honor.

Past the vast sea of the southern central cluster, lies somewhat of an oddity – a massive, bustling mega-city… that still remains relatively cut off from the culture of the central cluster, despite it’s size. This is the Southern Farlands – a place completely unaffected by the aftermath and trials of the Darkest Day.
Its isolation from the central cluster has led to it developing its own unique, self-sufficient society in what’s considered to be a city-state. Particularly, occultism and the concepts of divine energy and anomalies are greatly scorned… to the point where anomalies are quickly hunted down and locked far away, out of fear of their existential instability threatening the sense of ‘normalcy’.
Those who migrate from the Southern Farlands to the central cluster tend to be extremely wealthy entrepreneurs looking to expand, or are often adventurers and travelers.