http://www.somethingawful.com/d/feature-articles/project-hippasus-interview.php http://www.somethingawful.com/d/feature-articles/project-hip... basically this i

http://www.somethingawful.com/d/feature-articles/project-hippasus-interview.php http://www.somethingawful.com/d/feature-articles/project-hip... basically this idea but with math I don't think it ever came out though. edit: http://en.wikipedia.org/wiki/A_Tale_in_the_Desert http://en.wikipedia.org/wiki/A_Tale_in_the_Desert also comes to mind. Not specifically real world knowledge based, but advancement is generally tied to the user's real world skills (at least partially) rather than the normal fair.