You can delete your account at any time, and you don't have to tell us why.
This is the fastest route, and it takes effect immediately:
If you can no longer sign in, send us the email address that was on the account and we'll remove it for you.
Games you already played stay in the game history. They are stored under an internal id and never contain your email address, so once your account is gone they are no longer connected to you. Nothing is kept for a set period afterwards — once the account record is deleted, it's gone.
Then you don't have an account with us and there is nothing to delete. Your games on this device are kept in the app's local storage — clearing the app's data (or your browser data) removes them.
See our Privacy Policy and Terms of Use, or use the developer contact details shown on this game's store listing.