The three campaigns

The three Campaigns are the main Storylines that the player explores.
One is unlocked after the other, starting with the human

The Human Castle (First run castle)
The human Campaign is the basic intro campaign it is fairly easy and straight forward. The tutorial Master might be an agent who woud have betrayed you if it was not for the dwarfen attack

The Campaign ends with the destruction of the human castle.

The final Episode will be the fight with the dwarfen Castle and the escape from the enemy

The Dwarfen Castle (Traitor Castle)
The dwarfes provokes the beastcastle as well as the human castle. They do it

The dwarfen camapaign ends with the destruction of the dwarfen Castle by the humans. The dwarfes get backstabbed during the combat with the humans however, the magician and some loyalists manage to survive and escape into the wildernis

The Beast Caslte
Not being sure about the conflict between the dwarfes and humans they abandon the mainforce and try to sneak their way to the forge, leaving the human castle, as well as the dwarfen castle open for their destruction

The Campaign ends with finding the other two castles

The Castle of the God
The Castle of the fallen god is the old walking wotkshop of the creator before his fall.

The last campaign is about finding it, defending it until the eldar folk arrives to help operating it and than using it against the enemy to destroy the forge once and for all.