The Soulforge
Use the Soulforge with your Jewels and other resources to craft Traitstones, troops (and mythic troops), weapons and more!
Unlocking the Soulforge
Once you've completed a World Quest that becomes available at level 45, the Soulforge will be unlocked, with Levels 1 to 10 becoming available.
The Soulforge Levels 11 to 20 become available after completing another World Quest at level 100. You can find it in the Games menu at the bottom of the World Map.

Levels 1-10
The initial 10 levels are unlocked by killing a certain number of troops, or if you don't want to wait, you can unlock the next level with Gems. Unlocking a new level will allow you to craft different items or even troops. At Level 10, you can craft mythic troops, including Xathenos and Zuul'Goth.
Levels 11-20
Levels 11-20 are unlocked by spending Cursed Runes or Gems. This level upgrade can only be spent using one resource or another; you cannot split it between Cursed Runes and Gems.
Your level is displayed in the centre of the Level radius, with the number of Cursed Runes required displayed underneath.

This also unlocks an array of new recipes such as Orbs, Vault Keys, Guild Gifts, Forge Scrolls, and more!
At Level 20, you can then also craft the new special mythic troop Dark Smith Drenza.
All recipes from levels 11+ will require Cursed Runes as part of their components.

For each level of the Soulforge, you will receive a special bonus one-shot recipe as a reward. As the name suggests, this can only be crafted once and will only produce one copy of that item. Once this has been crafted, the recipe will disappear from the recipe list.

Collecting Jewels, Shards and Cursed Runes
Most items in the Soulforge require Jewels in their recipes. Jewels can be won in Dungeon battles, bought in the Dungeon offers (look for the purple banner in the top right of the screen), or crafted in the Soulforge. To unlock Dungeons, you need to complete all quests in the Drifting Sands.

Shards are also rewarded in Dungeon battles, completing Guild Tasks and defeating a Jewel Gnome, to name a few.
Cursed Runes, used in upgrading the Forge from levels 11+ and crafting, are dropped from defeating Cursed Gnomes or available to purchase in the Dungeon Shop.
Craft Troops, weapons, resources and more
Select the type of item you'd like to craft from the available tabs.

On the left under "Patterns" is a list of things you can craft. The number in green tells you how many of the item, Troop or Weapon that you're able to craft with your current resources. Select one of the Patterns, and the Crafting recipe will be displayed on the right. The centre image shows what you will craft; the smaller images around it show what items will be spent.
You can use the arrows to craft more than one of the items at a time (e.g. 3x Kerberos troops). Next, select the Craft button and read the confirmation screen carefully when you are ready to craft your item or troop.
Legendary and Mythic troops will rotate in the Soulforge twice a week. These will have a countdown timer so you know which ones to look out for.
Whereas the Craftable Dragonite Dragon, Weekly Kingdom Weapons, and Colored Summoning Crystals rotate once a week at the weekly reset.

Why do some Traitstones require higher rarities to craft?
The Soulforge is intended to provide players with an option to craft resources they do not have for a price. Generally, Minor Traitstones are more abundantly available. Additionally, many of the other resources available are relatively exclusive to the Soulforge, whereas Traitstones can be found in many locations in the game. Although it seems a bit backward, there must be a cost involved for the utility of having a feature that allows you to craft items at will.
Craft Ingots in the Soulforge

All Ingots - except for Common Ingots - can be crafted in the Soulforge using Souls and Ingots of a lower rarity, requiring 10 Ingots of a lower type and 100 Souls for each Ingot.