D&D Adventurers League

D&D Adventurers League (or simply Adventurers League for short) is the organized play association for the Dungeons & Dragons (D&D) roleplaying game which is officially administered by D&D's publisher, Wizards of the Coast. It was rebranded with the launch of D&D's 5th Edition in 2014. Prior to 2014, it was known as the Role Playing Game Association Network (RPGA Network, or simply RPGA). The organization was originally established by D&D's previous publisher, TSR, Inc., in 1980.

The RPGA initially focused on a tournament style of play with competitive events for TSR games such as Advanced Dungeons & Dragons (AD&D), Gamma World and Top Secret. In 1987, the RPGA launched its first living campaign where players at many locations could impact the storyline via their reported actions in campaign adventures. Various living campaigns were released for the different games administered by the RPGA. The Living City (1987–2004) campaign set in the Forgotten Realms was considered one of the most successful and by 1993, events for it surpassed the RPGA tournament style. Coinciding with the release of D&D's 3rd Edition in 2000, the first edition published by Wizards of the Coast, the RPGA launched Living Greyhawk which became one of the largest campaigns and ran until 2008.

In 2010, during the D&D's 4th Edition era, the RPGA introduced the D&D Encounters program which was intended as the D&D equivalent of Wizards of the Coast's Friday Night Magic program. This program ran alongside the Living Forgotten Realms (2008–2014) campaign. In 2014, the D&D Adventurers League divided organized play between the D&D Encounters and the D&D Expeditions programs for D&D's 5th Edition. In 2016, these programs were retired. The D&D Adventurers League has since released various other organized play programs themed around different campaign settings and ongoing storylines. Many of these programs featured seasonal storylines which corresponded thematically with the hardcover adventure modules published by Wizards of the Coast. Additionally, the design of both the D&D Expeditions program and the Masters Campaign program were influenced by the living campaigns style of play.