Game: Haha your a kid now, your a squid now!
Lore: The Splatoon series takes place in the distant future of our own world, but as you probably noticed, there’s no sign of humans anywhere. 12,000 years before the Mullusk era (which is when the games take place), humanity was facing extinction from rising sea levels due to climate change. Judd, a cat who lived in this time, was saved by his owner who invented two important items: tartar, a phone that could store all of humanity’s knowledge for the future, and a cryogenic capsule that could preserve life for thousands of years. He decided to save his cat Judd in this capsule before the rising sea levels wiped out nearly all life on land. This lead to a period of 10,000 years where Earth supported no intelligent life forms.After 10,000 years (still 2,000 years before the games), the flooding began to recede. This forced sea creatures that were living in the waters previously above dry land to evolve and become more intelligent. This lead to the evolution of both the first Inklings, Octarians, and Octolings. They slowly adapted to life on dry land, gaining the humanoid form we know them to have, as well as form societies. At this point, the Inklings and Octarians worked together.
At this point, Judd is released from his pod and joins the new society of molluscs.
Just 100 years before the first game, Inkopolis and Calamari Country were founded, and Cap’n Cuttlefish and DJ Octavio were born. Around this time, sea levels begin to rise once more, forcing a conflict between the Inklings and Octarians over the dwindling land mass. This is the start of The Great Turf War, which Judd would be appointed the judge of. Cap’n Cuttlefish, the new leader of the Inklings, would form the Squidbreak Splatoon with just three initial members, while the Octarians created Octoweapons that easily overpowered the Inklings’ weapons.
The Octarians were easily crushing the Inklings in The Great Turf War, and defeat seemed inevitable. That was, until the Octoweapons were accidentally unplugged and lost power. The Inklings took advantage of this opportunity and managed to beat the Octarians back until they were forced into hiding in Octo Valley. As the Inklings reclaimed the land, the Octarians managed to survive in underground domes.