It is a terrible place, incomprehensible to the mortal mind.
“Far beyond the world and its petty wars there exists a dimension of pure, malevolent magic: The Realm of Chaos. Of course, you can also read our hands-on preview. You can also watch the previous trailer, another, plenty of gameplay, and the original announcement.
If you’re unfamiliar with Total War: Warhammer III, which is coming for PC, here’s an official description.