once a group finished the adventure, they had the option to migrate their campaign to the corresponding hardback adventure module or to a D&D Expeditions adventure. The D&D Expeditions program was envisioned as the living campaign successor; initially, the program was going to be called Living Moonsea as the story was set in the Moonsea region of the Forgotten Realms. D&D Expeditions were designed to have longer sessions and show the regional impact of the current season's storyline. Additionally, there was a convention program called the D&D Adventurers League Epic; this was a "massive D&D session in which multiple tables work towards the same goals". In 2016, with the 4th season of organized play, Wizards of the Coast retired the D&D Encounters & D&D Expeditions programs when they opened the D&D Adventurers League up to any organizer, rather than just limiting it to participating stores. Adventures were now available for purchase via the Dungeon Masters Guild and groups could play online or in private non-store groups. Additionally, licensee Baldman Games was authorized to create connected adventures set in the Moonsea region. A non-seasonal "exploratory campaign featuring Eberron", titled Embers of the Last War, was run from September 2018 to December 2018. Then in December 2019, the Oracle of War – a separate ongoing storyline set in Eberron – began. In January 2020, the Dreams of the Red Wizards storyline was introduced which included adventures released in 2019; this was a non-seasonal storyline set in the Forgotten Realms which focused on higher-level play opportunities (Tiers 2–4). Until 2020, the seasons of organized play continued to correspond to the most recent published hardcover adventure module with additional thematic adventures released just for Adventurers League. In September 2020, with the 10th season of organized play, the D&D Adventurers League divided organized play into four new categories: Seasonal Campaign, Historic Campaign, Masters Campaign, Alternate Campaign. The Seasonal Campaign featured the most recent published hardcover adventure module along with adventures published on the Dungeon Masters Guild which correspond to the storyline. The Historic Campaign featured the back catalog of previous seasons. The Masters Campaign was "structured like a lot of 'living' campaigns in the past" with "an ongoing narrative that is broken into story seasons, all set in the Forgotten Realms". The ongoing Dreams of the Red Wizards storyline became a Masters Campaign. The Alternate Campaign was initially focused on Oracle of War which ran