Marvel Universe Roleplay
Inhumans, or inhomo supremis, are humans who have been subjected to genetic tampering by the Kree (a generally feared alien race). This race was hoping to unlock the code of the human’s creation by the Celestials. In a way, they succeeded, creating an entirely new species of humans with a gigantic array of super powers.
Many of them created their own civilization with a royal family, where they could control the process of using the Terrigen Crystals (the objects used to unlock the powers within an inhuman).
Though there are still many in the world, and most of them never even know about their own secret powers, until they are unlocked by Terrigen Mist. Similar to mutants, they can be found anywhere on Earth, though have no powers until they’re exposed to said mist.