Start and log in to the steam client, right-click CSGO in the library, select Properties, add perfectworld to the startup options, open CSGO, click the access button in the lower left corner, fill in the identity information for real-name authentication, and start the game after completing the account access.

The password format of Steam only needs to contain uppercase English letters, lowercase English letters and numbers, and it needs to contain two of them, and the length cannot be too short. At least 6-8 digits password is required, starting with English letters.