Step 1: Go to this page:

Step 2: Enter in your Kickstarter or Paypal email address

Step 3: Check your email

Step 4: Click that link, redeem your code


Step 1: Go to this page

Type in the email address attached to your
Kickstarter or Paypal account (whichever you
used to back us)
You’ll be emailed a link to your War for the Overworld product page, which will contain a Steam key (later, this page will also contain your other digital rewards)
Open the Steam application

Redeem this key on Steam
Enter the key you got in Step 3 then click “Next”