Giana Sisters: Twisted Dreams - Rise of the Owlverlord is a blistering platformer with morphing worlds, featuring seven brand new levels, a new boss and new gripping tracks from Chris Hülsbeck and Machinae Supremacy! Dash through tricky levels and transform the whole world at will in this fast-paced platformer.
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