Real Boxing™ brings you the most exhilarating, no holds barred boxing experience ever seen on Steam. Featuring ultra-realistic motion capture from real boxers, with amazing graphics built using the powerful Unreal Engine, you’ll be sure to feel every hook, jab, and uppercut.
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