The Most Mysterious Secret Service Agency of WWII This is a third-person stealth-action game describing the activities of the SMERSH, the most mysterious secret service agency of World War II. Moment of Truth is a sequel to the popular stealth action title Death to Spies.
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