Huge indie fantasy role-playing adventure in a massive, underground land. Packed with over 100 towns and dungeons and an epic story. Fight to complete up to three distinct game-winning quests. Master over 60 spells and abilities. Hunt for hundreds of magical artifacts. Over 50 hours of gameplay.
Go to: http://store.steampowered.com/ and download STEAM client
Click "Install Steam" (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don't have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.
After successful code verification go to the "MY GAMES" tab and start downloading.