How to claim The First Berserker: Khazan pre-order bonus and deluxe edition DLC

You're likely looking to claim your pre-order bonus in The First Berserker: Khazan if you're just about to start your journey into the game. This bonus includes a unique set of armour that you can't get anywhere else, so it's well worth collecting if you put down your cash in advance. If you really splurged and picked up the deluxe edition, then you'll have even more stuff to claim, including a particularly powerful armour and weapon set.

Sadly, you'll have to progress through the game a...