I wouldn't worry too much about your account on a very niche game. Also its 2020, at this point it's kinda on you to understand the basics when it comes to password security. Besides, if I wanted to get into your account, I wouldn't be making guesses like that, I would be using a dictionary attack or brute force.
I recommend https://howsecureismypassword.net for a rough idea of how well your password should hold up.