Coldharbour

 is the realm of Oblivion which is ruled by the daedric prince, Molag Bal. It is considered one of the most inhospitable realms being comprised mainly of charnel houses and vast slave pens. It is said to resemble Nirn except colder, darker and more beaten and violent.

In the upcoming Elder Scrolls Online, the player will become "the soulless one" after Molag Bal steals their soul and hides it in his plane of Oblivion. The player will then have to travel to Coldharbour to regain their soul.