Knowledge is power. No one knows this better than El Presidente, who leaves no stone unturned in his quest to position Tropico as a leader in the world of technological progress. And, as any media or educational establishment on Tropico will tell you, no one has more knowledge than El Presidente!
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