The Korea Civilization and Scenario Pack brings you both the Korea Civilization and the new Scenario: The Samurai Invasion of Korea, to further enhance your Civilization V experience. Rule the world as Sejong, King of the Choson Dynasty, with your invincible Turtle Ships and Hwach’a artillery!
Open the Steam client, login and locate the Games tab on the top menu. Click this and then select “Activate a Product on Steam…”
Enter your unique code that's displayed on the 'Orders' page of CDKeys.com and follow the prompts to activate.
Your game is now viewable in the “Library” tab and is available to download/install when you’re ready. You can find additional support for the Steam client here: https://help.steampowered.com/en/wizard/HelpWithSteam