
In the launcher, choose Create account. You will need an invite code from the server operator — codes look like ABCD-2345. Enter a login (3-20 letters, digits or underscores), a password (8-32 characters, no leading or trailing spaces), and the invite code.
In the launcher, choose Change password and enter your login, current password, and new password.
There is no automatic reset. Ask the person who invited you — the server operator can reset it for you.