You must first purchase the game before you are able to create an account. Once the transaction has been completed, you will receive a single-use key.
From the splash screen, click ‘Log in’. On right side of the interface, click ‘Register’ and follow the on-screen instructions to create your game account. You will need to provide a valid e-mail address to receive an activation link – if you have not received this e-mail please read the “How do I activate my account?” FAQ.
Registering a game account allows players to host and participate in multiplayer games, unlock achievements, utilize the friends list, create and join packs from within the game, send and receive messages and synchronize data across computers.
Note: Please be aware that accounts for 2.5 and the community forums are run on a separate database and will not work in versions 2.7.X and above/newer. Accounts for 2.7 can only registered from within the game itself - players cannot create accounts for the premium game on-site!