Board Thread:Dark Souls/@comment-212.56.138.90-20160107130147/@comment-4511886-20160108080131

Steam is a program you need to install and register for.

In order to get your game, just register a profile and download the program. Then, click "Add a game..." in the bottom left, go to "Activate a product on Steam..." and enter the activation code into the field that pops up.