It is sometimes thought to be located in Morrowind's southern swamps. The entire city is located in a person-sized metallic sphere found in Seht's Vault, with all the buildings being extremely small, requiring anyone to shrink themselves down in order to enter the city. The Clockwork City is located very deep below Mournhold, unknown to most of Tamriel.

The exterior of the city within Seht's Vault. Almalexia then fought the Nerevarine in a duel to the death in which she was killed and the city was left uninhabited. Almalexia hoped that the mechanical inhabitants of the city would kill the Nerevarine but the hero persevered and found the lifeless corpse of Sotha Sil. She told the Nerevarine that Sotha Sil had instigated the attack of Mournhold and sent the Nerevarine to the city to find and kill the supposed mad god. She then transported the creatures that lived in the city known as Fabricants to attack Mournhold in a plot to become the one true god of the Dunmer faith. In 3E 427 the goddess Almalexia, after being driven insane by the loss of the Heart of Lorkhan, traveled to the Clockwork City by using Barilzar's Mazed Band after tricking the Nerevarine into obtaining it from the Lich named Barilzar, and killed Sotha Sil.

After losing Sunder and Keening at Red Mountain, Sotha Sil retreated to the city and slowly became detached from the real world.

It is said that Sotha Sil hoped to 'forge the future' and 'reshape the world' from the city. The Clockwork City was made by the god Sotha Sil and consisted of brass tunnels and large domes with Dwemer-like gears and architecture.

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