The Finno-Korean Hyperwar, also known as the Hwan-Suomi Hyperwar, was an ancient war between the two most powerful empires in the world at the time. The Proto-Finnic Holy Roman Khaganate faced off against the Great Hwan Empire in a cataclysmic conflict that crashed the world with no survivors. Few groups survived the war, which claimed both the Proto-Finnic Khaganate and the Hwan empire. It is well known for bringing the end of the Hyper Era and bringing the world into a "dark age". The war was fought from between 8245 - 6172 BC. It is commonly debated how great of a role the secondary powers played in the war, as it is suggested that the Wewuz, Kang and Shied technocracies allied with the Hwan to stop the Finnish. The war is usually said to have begun with the Hwan invasion of Finnish India and ended with a mutual exchange of experimental Hyperspace missile strikes that caused levels of man-made destuction unparalleled across the known multiverse to this day, complete breakdown of all Hyperspace travel and communication due to the emergent Hyperstorm and rapid decline and collapse of both empires, although the Hwan are considered to have been technically victorious Followed by the outbreak of autism by the last emperor of the Hwan Empire, Emperor Kim Il Sung before he end his life, after a civil war, leading to the Finno-Autistic War until now.

The Emu confederacy is also considered a belligerent in the war, though they were not allied with the Finnish and merely invaded Japan. Most of what we know about the Emu faction comes from the writings of Arthur Semenitis. He writes of how the Emu confederacy colonized Mars, but unfortunately their colony was destroyed by a sonic flare gun from the nether regions of the Lemurian Empire. Semenitis (native to Emu Mars) is said to have contracted mental illness later on his life from excess exposure to radioactive sonic rays.