Glutton Creeper Games is a PnP RPG publisher responsible for the canceled Fallout d20.
On June 10, 2006 GCG finished contract negotiations with Interplay for a license to create a d20 Modern OGL setting for Fallout. On May 8, 2007 ZeniMax Media/Bethesda Softworks threatened to file an injunction against GCG for damages, should they not cease and desist production of Fallout PnP d20 products. They stated that Interplay never had the rights to license a Pen and Paper to GCG under their license of Fallout from 2004 before the purchase of the IP, and claimed that it may damage the Fallout brand and forthcoming Fallout 3 release by linking the two. The Fallout d20 page on GCG website was removed.
On June 19, 2007 GCG finished the conversion of the Fallout d20 project to the Exodus Post-Apocalyptic setting that encompasses the southwest of the United States (to include New Mexico, Arizona, California, Utah, Nevada). The system is generic enough to use in any setting, but have added a new storyline that is based on events that started in 1939, altering the history of the world ever so slightly until 2012, when the mother of all wars began, and man was forced to retreat from his own destruction.
In 2009, GCG released two additional Exodus Supplements to support the setting, that parodies Fallout and several other Post-Apocalyptic cult media. As of August 2012, a third supplement "Exodus: Texas" was added to the line and is available as a .pdf. It details and expands feats, skills, playable classes, factions and the game setting with an emphasis on Texas.