Let your users play minigames, instead of trying to guess twisted and distorced words!
This plugin brings to Joomla! the power of PlayThru captcha, created by AreYouAHuman.
Now this plugin has become "official"!:
AreYouHuman has just announced it on their blog (http://areyouahuman.com/new-community-developed-plugins-joomla-and-wysiwyg-8), so you can find it on the installation portal: http://portal.areyouahuman.com/installation/joomla