How to remove your Zynga account

Zynga is the maker of some ‘social games’ that are played by millions of people (e.g.: FarmVille).
You generally log in on a site (typically Facebook) and connect to Zynga by playing a game.
1. How to remove your (hidden!) account at Zynga? Send a mail to to privacy@zynga.com. Place “Delete My Account” in the subject line and include your first name, last name, e-mail address and user ID number for the SNS from which you access our games (if applicable) in the body of the e-mail.
2. How to remove a game? See https://www.zynga.com/privacy/removal.php
(From their FAQ)

Direct removal link: https://www.zynga.com/privacy/faq.php#remove-personal-information

Helpful Trick: Removing online data

Publicly visible text/images often aren’t properly removed even when you succeed in removing an account. Try editing or removing them manually before removing the account itself. If you’re unsure what happens to your tracks: this can be found mostly in the Terms of Service/Privacy Policy; otherwise you can always contact Zynga and ask personally. By the way, removal requests don’t necessarily mean your data will actually be removed (e.g. due to legal obligations).

Helpful Trick: Remove third-party logins

If you signed up for Zynga using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Zynga. Click here to find out how.