This article will go over the steps needed to add yourself as an admin on your Valheim server.
Log into your Game Panel, and then select the Valheim Service you wish to add yourself as admin on.
Once on the service, press on “Configuration Files”
Once pressed, you should see a file called “adminlist.txt”, Press on the “Text Editor” button to the right
Within this file, you will need to input your SteamID64, you can find that by heading to this website and placing your Steam Community Link.
Alternatively, you can press F2 in-game for a pop-up that will have your SteamID.
Once completed, press Save and restart the service.
You've now set yourself as an admin on your Valheim server.