Interestingly enough, PHP-based RPG games are usually just news managers or CMS scripts that are heavily modified to include things like user experience, points or currency, games, and forums.
The only difference between a RPG and a CMS in this sense, is how it's displayed to the user..
Here are some links:
http://phprpg.org/http://www.hotscripts.com/Detailed/41310.htmlhttp://www.sojdesign.com/products/1Here's what I'm talking about with the CMS:
http://forum.mamboserver.com/showthread.php?t=45143Mambo is a development project specialized in creating a Content Management System that allows modifications and themes to greatly change the way the content is portrayed to the user... RPG Mods are quite numerous here.