In the past, Adventures League adventures had codes used to uniquely identify an adventure. It was a kind of “short form” in place of the adventure’s title. Dungeoncraft adventures continue to use codes to identify themselves.

Known Code Prefixes

Code Prefix Explanation Campaign
DDHC- Official WotC adventures. WotC does not assign codes to new adventures anymore. So we just choose something logical (eg. DDHC-COS for Curse of Strahd) Varies
DDEXxx- Official AL seasonal adventures from seasons 1 through 3. A code may look like DDEX1-1. Forgotten Realms
DDALxx- Official AL seasonal adventures from seasons 4 through 10. A code may look like DDAL05-02. Forgotten Realms
DDEPxx- Official AL epic adventures. A code may look like DDEP10-01. Forgotten Realms
CCC- AL adventures written by convention organizers (I think “CCC” stands for Convention Created Content) Forgotten Realms
RMH- Mist Hunters adventures. Ravenloft
PO- Adventures created by Premiere Organizers (Baldman Games, GameHole Con, etc.) Varies
DC-PoA- The Dungeoncraft program was introduced during season 10 (Rime of the Frostmaiden). DC adventures had codes like DC-POA-ABCD-02. Forgotten Realms
WBW-DC- WotC released The Wild Beyond the Witchlight and official seasonal adventures stopped being released. Instead, the DC program took over. Adventure codes looked like WBW-DC-TLMBR-02. Forgotten Realms
SJ-DC- Spelljammer DC adventures. Forgotten Realms
FR-DC- Forgotten Realms DC adventures. Forgotten Realms
PS-DC- Planescape DC adventures. Forgotten Realms
DL-DC- Dragonlance DC adventures. Dragonlance
RV-DC- Ravenloft DC adventures. Ravenloft
EB-DC- Eberron DC adventures. Eberron