Skaven

Technologically advanced rat people. Ugly, evil creatures that spread plague wherever they go and topple kingdoms for fun and profit. Nobodies friends, not even their own. Backstabbing little bastards, they'll fuck you up five ways without you even knowing about it. A race in Warhammer Fantasy Battle

They are made up of many clans, the most important ones being clan pestiliens (Nurgly furries), clan eshin (ninja rats and assassins), clan moulder (frankenstein wannabees) and clan Skyre (rats that love them steampunks, also DOOMWHEELS)