The Overlord of Bonparr is a supplement in which the kingdom of Bonparr in Indiana and Ohio is detailed.
Reception
Gene Alloway reviewed The Overlord of Bonparr in White Wolf #37, rating it a 3 out of 5 and stated that "The Overlord of Bonparr is a good example of a serious approach to GammaWorld gaming. The story is vivid and addsa lot to the game in general. In effect, it is a macrocosm of all the problems the altered and mutated races face in the post-holocaust world. With just a few changes, a large amount of the information can be used in any other Gamma World campaign, adding depth and variety. I recommend this product to Gamma World players."