Basically, in the far flung future where all is wireless yet always connected, shit got real. Apocalypse real. Not nuclear war no, but collision of the realms. A fey realm, one of magic and fantasy, sword and sorcery, collided with the terrestrial realm, resulting in not only mass destruction to both parties, but a combination of the realms. Now the world they once knew was a mere memory, a pdf file in a history e-book. The world now was populated with abberant beings of the direst fel origins and the survivors of the Arcanapocalypse had to band together quickly if they sought survival. Races originally on different planes of being, united under one tattered, homemade banner for the most part, each displaying the ways of their previous culture in an effort to help the other side, and in return, gain the knowledge they possess. With nuclear power gone, the races of the other-realm taught what little magic they had left in their spellbooks to mankind, giving them a power source to the surviving tech. Most of the old society was vaporized, but smaller devices, ones similar to PDAs and cybernetic implants had survived, along with a few other pieces. With magic powering them like batteries, they fundamentally acted the same, with a few chance changes. The newly refounded tech is used by all nowadays, all linking up the magical leylines that control the flow of arcane energy throughout the world, instead of systems like wifi and 36G.
Most cities have been reduced to rubble, but that only leaves opportunities. Scavengers and raiders are the main movers and shakers of the world, usually with knowledge of far off places with the greatest loot they could imagine. The only problem was what lies between Point A and Point B. Beasts of unimaginable terror and atrocity. Sure not all magically altered creatures are bad, but anything with a mouth with more teeth than remaining humanoids on the plant, yeah, those things are bad.
