The Forge

The Forge is a new area added in the Dwarven Mines update. You can use the forge to refine certain items into their refined form, or create powerful gear or items. To use the Forge, you first need to get Heart of the Mountain tier 2. You can do this by travelling to the king and completing commissions that you get from the current king. Once you are tier 2 or above, travel to the forge and talk to one of the forgers there. You can choose a slot to forge at, and what to forge. More different and powerful items can be forged the higher your HotM tier is, so completing lots of commissions is advised. Forging takes a lot of time, so you have to manage your forge slots carefully.