If you already have one simply proceed to step 2.Ģ - Log in to your account and then click your Account Name in the top right corner, then proceed to click Account Settings.ģ - Click the green Add a Game Key button located on the right hand side of the page.Ĥ - Enter your 16 digit Diablo 2 CD-Key into the box and click REDEEM CODE. Create an account if you don't already have one. How to Install and Play Diablo 2 & Diablo 2 - Lord of Destruction Without the Physical Game Discs/CDsġ - Enter this site: and click the My Account tab in the top right corner.