Aliens

There are a large array of specific extra-terrestrial, extra-planar, or just plain extra-human species that inhabit Variant Earth 13 - or at least some tiny fragment of the earth that they've claimed as their own. These entities possess a variety of different motivations for what they do, but few of such inclinations have the benefit of humanity in mind - usually just the opposite, in fact.

Known alien types include the following:

Elves: the by-product of intermingling between fairies and humans (possibly via their then-thralls, the pixies), elves have stablized into a proper species in their own right - save for outliers who betray their faerie origins a bit more than most. Elves tend to stick to their own kind, finding human civilization noxious and faerie civilization (such as it is) abominable.

Mhunghus: whether it be a single Mhungi or several Mhunghus one encounters, one cannot help but be stunned by the amazing intelligence they wield, an intelligence that the Agency believes has been pointed the way of the Earth for quite some time; it is believed that these psionic, fungal lifeforms may have evolved on a world near our own.

Pixies: formerly human in both nature and stature, pixies have drifted apart from their taller brethren for reasons that are still debated. Regardless, they have devolved into petty tricksters, and truly delight in wielding their meager skills for naught but their own amusements - and humans are most often the target of their mirth. When they even bother with people at all...!

Zombies: a grave menace to humankind, zombies are the reanimated dead. Thirsting for human flesh despite a lack of any biological need, the hunger that drives the undead causes them to perpetually shamble after the living. While some zombies occur naturally, the vast majority of such creatures are manufactured as cheap labor or muscle, only to have them escape into the wild...!