The Twisting Nether is a chaotic realm in the Warcraft Universe. Its exact nature and its relationship to the worlds of Azeroth and Draenor are not fully understood, however the Burning Legion and the demonic race of the Nathrezim dwell here.

One of the common theories of The Twisting Nether is that it acts the way Immaterium does in the Warhammer 40,000 universe. It acts as a parallel dimension to our own space. By travelling through it, people can traverse the distance between stars in a short time. This realm however is the home to malevolent spirits such as demons who seek to destroy our reality. The Twisting Nether is thought to be the link between all of the dimensions in the multiverse. It is utilized by the Titans to create the many worlds under their watch, and later as well by Sargeras in the creation of the Burning Legion. It is also considered a type of ‘hell’ by members of the Scarlet Crusade where those who are tainted by the Scourge go when they die.