In Reverse Dungeon, the players control a dungeon's monsters instead of playing a group of adventurers. The players start as a small tribe of goblins, progress through an assortment of monsters, and end the adventure by playing undead. Both the Introduction and Appendix: Playing the Bad Guys caution and guide the readers that this is a chance to extend beyond any normal role-playing experience. The Appendix explores the idea that some of the monsters, particularly the goblins, may just be misunderstood rather than "evil".
Reverse Dungeon was reviewed by the online version of Pyramid on July 7, 2000. The reviewer cautioned: "This is not your normal adventure. Instead of playing a stalwart group of adventurers, valiantly fighting the forces of darkness, the players take on the challenge of playing those forces and deciding for themselves if they are truly that dark." Praising the adventure, the reviewer said that "Reverse Dungeon is a well thought-out scenario that challenges players to step away from their normal ideas and take a significantly different view of the world around them." The reviewer commended the designers as well, saying that "John Rateliff and Bruce Cordell present an interesting role-playing challenge to both player and DM."