Pokemon 40k
In the Grim Darkness of the future, there is only war…
Prologue: During the great crusade of the 31st millennium, the galaxy was conquered and administrated by the imperial forces of Holy Terra, more commonly known as the planet Earth. Many foreign planets were colonized by humanity, who forged thriving settlements even amidst dangerous and sometimes deadly flora and fauna. One such planet was Jerwyk IV, a small blue-green temperate planet similar to old Terra on the outer rim of the galaxy. Jerwyk IV was noted for it's extreme diversity in animal and plant life, with millions of unique species and an entire kingdom not yet recorded in any Xeno-zoologist's record. With regular shipments of supplies from nearby imperial worlds, it seemed that the colonists would have all they needed on their new home.
Then the warp storm hit.
It was by no means a gradual affair; indeed, those manning the communications relays and spacecraft far enough out to witness it often make the claim that the entirety of space turned red in the time it took them to blink. On the surface, little was noticeable save for the infusion of a sweet scent into the air. Over the next hundred years the symptoms of the warp storm would become evident: Amnesia ran rampant among the colonists, wiping out all knowledge of the universe outside of Jerwyk IV within a generation. The new animal kingdom, previously known as Kingdom X, was particularly affected; mutations became abundant, and rapid and pronounced evolution became fairly commonplace. Once life on the planet had stabilized, the citizens gave the bizarre creatures a proper classification: Kingdom Pokemon.
Within five generations, the colonists no longer saw themselves as colonists. They were native residents, born to their world and with no knowledge of the universe beyond it. They soon discovered that most Pokemon had near human level intelligence, and some had significantly more. They trained the animals to work, to fight, to protect, and generally to shore them against the ruin which lurked around every corner. The colonists suffered famine, disease, and a host of other issues tied to the loss of imperial technology. However, through the study of the discarded technological relics of their forefathers, soon the people of Jerwyk were able to establish thriving scientific communities. In particular, the chaotic warp storm that locked them off from the rest of the universe also interacted with the colonists' developments, facilitating the invention of a lightweight portable warp-teleportation device, which functioned with remarkable stability and ease. This technology soon became of common-use in the rapidly diversifying regions of Jerwyk, most ubiquitously in transportation of Pokemon through small devices known as "Pokeballs".
Centuries passed. The various continents of Jerwyk were settled, and thriving cities rose on each. The global sport, if it could be called such, was Pokemon Battling, with each major city sporting a league gym and massive tournaments held on a regular basis. Different regions developed their own independent governments to facilitate local governance, though a relatively peaceful atmosphere was maintained on the planet. Most regions adopted a representative democratic government, though Kanto maintained a unique single-branch system in which the league officials of the region also served as the region's governing officials, with gym leaders joining them in times of crisis.
Millennia passed. Gyms rose and fell in standing, and league champions for each region waxed and waned in popularity. One boy from the back woods of Pallet town met a Pikachu and chased his dream, traveling from region to region and daring any who would to try and stop him. He eventually returned to Kanto and achieved his dream, becoming the league champion and consequently a figurehead of Kanto's society. This is largely his story, though there will be many other players before the end. For warp storms are erratic things; what starts in an instant may last for 10,000 years, and in the blink of an eye it may vanish. Happiness, stability, and peace are all invariably transient states; after all, in the end, there is only war.