From the moment Edward Carnby and Aline Cedrac set foot on Shadow Island, they are confronted by mysterious, evil creatures intent on thwarting their progress to recover 3 ancient tablets believed to hold the secret key to some incredible menacing phenomena. Danger threatens from every corner.
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