D&D modules The series began in 2003 with the publication of Idylls of the Rat King for D&D 3rd edition, and continued to publish well over sixty adventures. In 2008, using the Game System License, the series changed to D&D 4th edition. The series switched to the DCC RPG upon the new system's release in 2012. Some adventures are also available (under the Original Adventures Reincarnated label) in an Advanced Dungeons & Dragons 1st edition version as well as 3rd edition. Some have also been converted to Castles & Crusades. See also List of Dungeon Crawl Classics modules References D20 System publications Dungeons & Dragons modules Goodman Games games