Each worldbook contains extensions to the core rules for a particular setting or genre. GMs can easily create their own setting-specific supplements to modify XM3RPG to be usable with their universe of choice. Essentially, each worldbook only needs to specify the things specific to that genre rather than an entire from-scratch set of rules. The result is a system in which it's vastly easier to create new adventures and worlds in which to set them, and in which each of those worlds is supported by both the power of a genre-specific system and the flexibility of the core XM3RPG.
Consisting of a set of Core Rules and the first worldbook, the XM3RPG Beta may be downloaded for personal use free of charge. Download it, play it with your friends and send us feedback!
Geek And Dad™, LLC. would love your suggestions for improving this game:
XM3RPG will, when the final version is released, be available as a printed and bound book. Feel free to contact us for more information.
For XM3RPG news, updates and the like, you should either follow the XM3RPG specific twitter account or for more general Geek & Dad news, follow the main Geek & Dad twitter account and possibly the Geek And Dad blog.