Sparkster makes his triumphant arrival on next-gen platforms with Rocket Knight, the newest chapter in the classic side-scrolling rocket action series. Our favorite opossum hero returns home after 15 years to find the kingdom of Zephyrus in shambles.
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