Around twelve different classes are available to use in For the King 2, but not all of them are unlocked when you first begin your adventures. While you do have a few character types right away, many others are hidden until you complete certain tasks tied to the main story. Different builds for party compositions are at their most creative and fun when you have access to every archetype from the start.

https://screenrant.com/for-the-king-2-unlock-every-class/