Appearing as mutilated humanoids with large heads, Nihilids are terrifying to encounter. They are thankfully rare.
Dimensional Science has started to unlock the understanding of the fact that the universe is made of layers, and these layers while interacting with each other, are very distinct from each other.
What is arcanotech? It's breaking the laws of physics for fun and profit.
A hostile race discovered through dimensional boring. The first encounter with the violent and nomadic Tarxan occurred in Neo-Constantinople of the Eurasian Alliance, hence the Turkish/Central Asian rooted name.
"Living in a town that sits on a dimensional nexus can wear thin after a while. It's not so much the crawling shadows, bizarre weather, or late night visitors from places that never existed; but carrying on with your normal life and trying to act like nothing out of the ordinary is going on in your little corner of the world that gets to you."
A small rural town with surreal secrets, that happens to be situated on a dimensional crossroads, suitable for modern day supernatural/mystical/horror campaigns.
"It is said that among those people they have a loathsome custom- that they keep a spotted dog always waiting beside the gate of the yard where they bury the dead, and that in every funeral they allow this spotted dog to feast upon the dead, so that it grows fat and wise with the knowledge of the dead... Many necromancers do seek out these spotted dogs, and ask of them sciomantic knowledge, or take them as familiars." -Author unknown, "The Ways of the Necromancers"