Ashes of Arcanum: AoA - Homebrew - Detailed Information

In the game, you can create homebrew to your hearts content... but they wont load into the Fatebornes options for character creation or selection unless you have it unlocked.

That is what this does.
You unlock:
Custom Classes
Custom Species
Custom Weapons
Custom Upgrades/Histories
Custom Spells
Custom Companions
Custom Accessories