So, you signed up to Skyforge via Steam, and not via the Skyforge website. Now you have a non-Steam promo code you want to apply, but the only way to do it is by logging into the Skyforge website. Problem is, you don't have any login credentials because Steam took care of all that for you. What now?

Here's the trick:

1. Start the Skyforge launcher from Steam, but don't click Play
   
   
2. At the bottom of the news articles, click on All News
   
   
   
   
3. Your web browser will open and you will be automaticaly logged in to the Skyforge website with the account Steam created for you. Click on the Profile link.
   (Or go directly to http://sf.my.com/us/user)
   
   
   
   
4. Click the Redeem a promo code button.
   
   
   
   
5. Enter your promo code and enjoy!