In Warhammer 40K: Space Marine II, the CDK is used as follows: First, open the game platform and find the relevant page of the game. Then enter the CDKey in the specific area and check carefully to ensure that it is correct. After confirmation, the system will automatically verify it, and if successful, the corresponding game content or rewards can be unlocked.

CDK User Manual

How to use the activation code

1. Then click Add Game >> Activate Product on Steam in the lower left corner

2. In the pop-up dialog box, click Next, then select Agree, and then enter the CDKey to activate

3. After successful activation, you can select the game in the steam game library, click install, and finally download the game.