Enter the world of the Outsider in Dishonored: Dunwall City Trials, the first add-on pack for the critically-acclaimed first-person action game by Arkane Studios. Your combat, stealth and mobility skills will be put to the test as you make your way through 10 distinct maps that feature a variety of challenges.
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