In Windscape you play as a young girl living on your parents’ farm, set in a lovely world made up of floating islands in the sky. As you discover the world you learn that something has gone terribly wrong - islands are breaking apart and falling from the sky!
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