This guide will tell you how to get the missing PREORDER bonus DLC pack in Asterigos: Curse of the Stars.
You must open up your main menu and go to Asterigos: Curse of the Stars game. Press Options, select Manage Game Content, and you will find that the pre-ordered bonus pack is not installed. After that, press right and then press X to start installing.
Now go back to your game, press the Options button and then return to the game title. Load your game and when you get back to the game, you will have these notifications giving you your pre-order DLC bonus pack, you can see them under the Profile tab inside the Trinket section. You will have two trinkets; The Brooch of the Warhound and The North Wind Medallion. You will get another outfit, the Northwind Tempest set.