The Dungeons: 4 Unique Dungeons filled with hundreds of fiendish monsters and dozens of diabolical bosses. Three Levels of Difficulty: Normal, Hard, and Nightmare. Online single player or co-op up to 4-players. Local Split-screen multiplayer co-op up to 4-players (only requires a single game copy). Make your Hero: Choose your Race: Human, Dwarf, Elf, Halfling, or Orc. Choose your Class: Champion, Ranger, Cleric, Wizard, and Rogue. Customize the appearance of your Hero. Become a Legend: Collect a huge variety of Weapons, Armor, and Accessories to customize your Hero and grow in power. Craft powerful equipment and become a force of reckoning. Embrace the Heroism system, allowing you to continually increase the power of your Hero.

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 "LIBRARY" tab and start downloading.