An Adventure Path is a serial adventure for the Dungeons & Dragonsfantasyroleplaying game or the Pathfinder Roleplaying Game. Though originally applied to the series of Third Edition modules beginning with The Sunless Citadel, the phrase has more recently come to apply nearly exclusively to several lengthy series, each consisting of 11-12 installments, published sequentially in Dungeon magazine. In 2007, Paizo Publishing attempted to trademark the term "Adventure Path," but the US Patent & Trademark Office determined that it was too generic for protection. Adventure Paths are also available from third party publishers, such as 0Onegames's Road to Revolution campaign arc, EN Publishing's War of the Burning Sky series for D&D 3rd Edition and subsequently updated for D&D 4th Edition, and its ZEITGEIST adventure path is due for release throughout 2011 and 2012.
Shackled City is also available as a hardcover book, and both Dungeon publisher (previously editor-in-chief) Erik Mona and current editor-in-chief James Jacobs have repeatedly expressed a desire to do a similar collection of Age of Worms and, in the further future, Savage Tide and its eventual successors. However, this is subject to approval from Wizards of the Coast, which has not been received to date.
Both the Age of Worms and Savage Tide Adventure Paths were supported with articles in Dungeon's sister publication Dragon, entitled "Wormfood" and "Savage Tidings" respectively.
With the transference of Dragon and Dungeon back to Wizards of the Coast, Paizo is continuing the Adventure Path concept in their new monthly publication, Pathfinder. Wizards of the Coast is continuing the Adventure Path concept in the monthly online Dragon and Dungeon publications.