Check the listing for details. D&D D20: Dungeons & Dragons Rules Compendium Hardcover. Condition: Used. Listed at 59.99 USD. The definitive reference guide of Dungeons & Dragons(R) core rules.Tired of hauling all of your D&D rules supplements to the gaming table? Having trouble finding the rule you need? The Rules Compendium supplement takes all of the game's most important rules and presents them in a single comprehensive, easy-to-reference volume for players and Dungeon Masters.In addition to presenting the rules of the game, the Rules Compendium incorporates official errata as well as behind-the-scenes designer and developer commentary explaining how the rules system has evolved and why certain rules work the way they do. Check out my other items I combine shipping at full listed shipping for the first item, and 1/3 of the listed shipping for each additional item. If the shipping is not automatically calculated, please let me know so I can adjust it manually. Powered by SixBit's eCommerce Solution