Cookies and local flags
I do not drop a tracker from a remote server. The note at the corner of the page is my cookie banner, and the flags live in this browser.
The four flags
I use four names in local storage. One remembers that you are 18 or older. One remembers that you accepted this note. One holds the player record: name, email, passphrase and mark. One holds the name of the player currently at the bench.
Why they are there
So I do not ask the same age question on every visit, so the banner can stay quiet, and so your player is still here when you come back. Nothing in those flags leaves the machine.
How to clear them
Leave the bench only removes the current name. The player record remains. To wipe the lot, clear storage for this site in your browser. I cannot do that step for you.
The banner
If you have not accepted the note, you will see it. Accept writes the flag and hides the banner. Read this page first if you want the detail. The link in the banner brings you here.