Take a trip to Nuka-World, a vast amusement park now a lawless city of Raiders. Explore an all-new region with an open wasteland and park zones like Safari Adventure, Dry Rock Gulch, Kiddie Kingdom, and the Galactic Zone. Lead lethal gangs of Raiders and use them to conquer settlements, bending the Commonwealth to your will. Nuka-World features new quests, Raiders, weapons, creatures, and more. Enjoy the ride!

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.