Hada
Hada is a planetary disc — a flat, thousand-mile-thick, celestial body. Imbedded in the center of the disc is a green dwarf-star. The top of this star, extending fifty miles above the surface of the disc, can be seen from anywhere on Hada. Almost all Hadeen refer to this as 'The Emerald Anvil' or just 'The Anvil'.
Hada has three distinct zones: an inner ring of blistering desert that surrounds the Anvil, an outer ring of frozen land too cold to support life, and a center ring that spans the spectrum of livable climates, including oceans. The mountain ranges that separate these three environments are 500-mile-wide barriers of peaks taller than anything on Earth.
50,000 miles above the Anvil is the 'Waymoon', a satellite about the same size as Earth's Luna. It regulates Hada's tides and an unchanging cycle of light and dark. Always visible, day or night, the Waymoon's distinctive surface features are how the Hadeen navigate.
Since 1861, roughly one third of Hada has been a desolate waste called “The Reaved Land”, created by the event that fueled the genocidal war against humans.
Glim
The Anvil is the source of all energy on Hada. The Hadeen call the power it emits 'Glim'. It is the underpinning of every aspect of their existence and fuels everything that seems 'magical' to humans: their energy weapons, their crafting and their ability to fly. Hadeen bodies process Glim much like plants photosynthesize sunlight, so they don't really have to eat, except for an herbal broth they call 'Seyo'.
Crafters use Glim to manipulate natural materials to make clothes, tools, and building components. Wielders create blades and shields from it. Twins (or triplets) can use synchronized modulation of Glim to communicate over dozens, sometimes hundreds, of miles.
With all uses of the Glim (except flight) specialization is key. Crafters can't wield and warriors are terrible at making things. The more rare an ability and the more practice it requires, the less of other Glim-skills the average Hadeen will know.
The Portals
There are seventy-two 'natural' Portals spaced equidistantly around the center circumference of Hada. The sole purpose of sixty-nine of them is connecting with Earth. This is done via the intergalactic, holographic projection of a Hadeen and/or the instantaneous transport of a human (or humans) to/from the Portal to/from any location on Earth. The other three Portals function as teleporters but also each house one of the Eyes.
These behemoths of stone are ten miles high and ten miles in diameter at the base, tapering up to a relatively small (100 yard diameter) tube of an unknown metal. The core of each Portal is a hollow space two miles across that flares inward to form the inside of these 'barrels'. Around the edge of these massive 'rooms' are seventy-two teleportation platforms called “Carriers”. At the height of interaction with Earth, the Portals transported hundreds of humans to/from Hada every day.
Present day, one third of the Portals (including one of the Eyes) are located inside The Reaved Land and it is unknown if any of them are still functional.
The Eyes
The Eyes are demigod-like entities that inhabit three of the Portals. They exist in multiple timelines simultaneously — viewing past, present and future through a lens only they understand.
They are the supernatural glue common to almost all of Hada's religions. Like the Hadeen's myriad views on humanity, the Eyes mean different things to different faiths. For some, they are righteous — for others, diabolical.
After The Reaving, all communication from The Stone Eye ceased and it became known as the Dark Eye. Toward the end of Pydos's genocidal war, fifty years ago, the Walking Eye went silent. Cut off from the other two, the Eye of Auga slowly diminished until it, too, went quiet.
Glyphing
15,000 years ago, the Hadeen unlocked the secret of flight. By literally reshaping the spinal column of a newborn, the Glim is channeled (after years of practice) to create 'wings' of pure energy. This process is called 'Glyphing' and it is the single most important ceremony for the vast majority of Hadeen. Glyph color and patterning communicates not only culture and place of origin, but one's individual identity – like a highly personalized coat of arms.