Immense eldritch machines that produce the warforged, the Creation Forges have all been officially dismantled according to the agreements in the Treaty of Thronehold. The creation forges were first crafted by Merrix d'Cannith but it was his son Aaren d'Cannith who perfected his fathers work and turned the warforged into living constructs. For thirty-one years the creation forges churned out numbers of warforged through processes only scions of House Cannith fully understand.
Although the creation forges have been outlawed two still operate in secret. Merrix d'Cannith II the grandson of the progenitor of the warforged still runs a creation forge deep in the bowels of Sharn however he performs creations sparingly so as not to alert any outsiders to its presence. The other creation forge is located deep in the Mournland and lorded over by the Lord of Blades. This forge was damaged during the Last War and so only produces warforged at a fraction of the rate at which it used to, and it is not unusual for these warforged to emerge with deformities.