ensure that you are activating your game through the Steam application. The Steam website cannot be used to activate a game.
1.Download and install the Steam client on your PC.
(https://store.steampowered.com/about/), then sign up and log in.
2.Locate the Steam key in your cdkeys.com confirmation email, and copy it to your clipboard by pressing “Ctrl+C”. 
3.Open the Steam client and locate the “+ ADD A GAME…” button on the bottom left of the window. Click this and choose the “Activate a Product on Steam…” option.
4.Paste the key from your clipboard in the “Product Code” section when asked, and follow the rest of the prompts to add the game to your library. 
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
Download the uPlay client to your PC
(https://uplay.ubi.com/). Sign up, and log in.
1.Locate your uPlay key in your cdkeys.com confirmation email, and copy it to your clipboard by pressing “Ctrl+C”.
2.Open the uPlay client, and press the key icon on the top right of the window to open the “Activate a key” option.
3.Paste the key from your clipboard by pressing “Ctrl+V”, and select “Activate”.
Your new game is now activated and ready to download. Once downloaded it will be ready to play!
You can find additional support for the uPlay client here:
https://support.ubi.com/en-US
1.Download and install the Origin client on your PC
(https://www.origin.com/usa/en-us/store/download), then sign up and log in.
2.Locate your Origin key in your cdkeys.com confirmation email, and copy it to your clipboard by pressing “Ctrl+C”. 
3.Open the Origin client, click on the “My Account” section, and then the “Redeem Product Code” tab.
4.Paste the key from your clipboard by pressing “Ctrl+V”, click “Next” to confirm and the game will now be added to your library.
5.Your new game is now activated and ready to download. Once downloaded it will be ready to play!
You can find additional support for the Origin client here: https://help.ea.com/en/origin/origin/
1.Open your Rockstar Games Social Club client or use a web browser to navigate here: http://socialclub.rockstargames.com/activate
2.Log in to your Social Club account, or create a new one if you don’t already have one. 
3.Select “Use Rockstar Code”, and then use the key you received in your cdkeys.com confirmation email.
4.Select “Confirm” and then follow the prompts to download and install the game on your PC. You can find additional support with the Rockstar Social Club here: https://support.rockstargames.com/
1.Load the “Home” screen (make sure you’re signed in), and navigate right to “Store”
2.In “Categories”, select “Games”.
3.Choose the “Use a code” option.
4.Select the option to “enter the 25 character code”, and enter the code you received in your cdkeys.com confirmation email.
