How do you add an existing account?

I’ve just changed the device I play War Thunder on, (I previously used my own Gaijin account through someone else’s Steam account, now I have my own Steam account) and I can’t log in. There is no “Switch User” option for me in my profile, and the auto-login option is turned off but I’m never brought to the login page, just automatically signed in on a new account the game has made.

Any ideas on how to help?

to get to your Gaijin account you may have to run the game through the WT launcher (‘update the game manually’ ón Steam (you may have to click on the small arrow next to the play button in the library) or just run the launcher.exe in the WT main game folder)

when the launcher starts it may try to update the game to the ultra high quality version (+65gb). in this case you have to change the client to ‘full client’ in the lower right corner of the launcher (unless you have the (free) UHQ DLCs installed on Steam)

once the launcher has done its job and the game starts you can enter your Gaijin login credentials on the login screen.

unfortunately since your accounts aren’t linked you will be logged into your new / fresh Steam account every time you start the game directly through Steam (without running through the launcher) i’m afraid… if this is the case and you want the Steam account linked to your Gaijin you will have to contact the customer support - https://support.gaijin.net/hc/en-us/articles/360000262858-How-to-submit-a-support-request

STEAM AUTO LOGIN RESET AND HOW TO CHANGE IT

You can manually disable the auto login by editing one of the game configuration files.

The file in question is the common.blk located in C:\Users<username>\Documents\My Games\WarThunder\Saves\

Open that file in any text editor program (like Notepad, Wordpad, Editor etc - it is a text file) and edit this line

autologin:b=yes

Change it to - autologin:b=no

Then locate SteamLoginAuto:b=yes

Change this to SteamLoginAuto:b=no

Then save and exit the text editor program and restart the game.
This should fix it.

Credit to: IMPORTANT HELP - READ HERE FIRST! :: War Thunder Technical Problems/Advice

Worked for me, as of June 8th 2024. GL.