User summary: DDIA06 The Sunless Citadel was played as the opening (introductory) scenario of the organized play season. It could be played directly from Tales from the Yawning Portal, though a special PDF version (noted in this entry) was provided on request to participating organizers. The PDF was an exact copy/extract of the hardback's pages 9 through 31; in addition two pages of supporting "Magic Items and Creatures" are appended.