Thanks for taking your time to contact PUBG support!
I see that you wish to know how to install the steam launcher. In order to do that once After joining Steam, click the [Install Steam] button at the top of the screen Click the [Install Steam Now] button. After downloading the steam installation file, It is the same as a normal program to proceed by pressing the [Next] button. After the installation of the steam program is completed and executed, Enter your ID and password and log in. The first time you log in to the Steam program, it will check to see if the email address you entered is correct. "Is this the current message you are using?" "" Yes "" to go to the e-mail and access the account that received the confirmation e-mail After you click the Verify mail link, Turn to the steam program and click the [Finish] button to complete the steam certification process. "
Hope this information for helpful for you.We’re always available here to assist our Survivors, Please let us know if you’ve any other question or concerns so that I can assist you accordingly.
See you in Battle ground!