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''Masque of the Red Death'' is a campaign setting for ''TabletopGame/DungeonsAndDragons'', created by TSR and later expanded by Arthaus Games. Named after Creator/EdgarAllanPoe's story of the same name, it was a {{spinoff}} of the ''TabletopGame/{{Ravenloft}}'' campaign setting and had several facets in common: it was a gothic horror setting, with mysterious powers, and had restrictions on magic and planar travel. Unlike ''Ravenloft'', it was set in a more modern era, an 1890s version of Earth called "Gothic Earth" --the latter supplement ''Chronomancy'' confirmed that this was the same Earth as that of the ''Historical Reference'' supplement line.

In this setting, character classes were {{Retool}}ed to more modern ones like "Athlete," "Criminal," and "Cowboy," and characters received salaries depending on their career. There were magic-using classes (the Adept) and priest-like ones (the Dilettante), along with some others that were rough parallels of the traditional D&D classes.

The eponymous Red Death of this setting was a mysterious force that was not strictly defined in the campaign materials. Several theories were floated in the materials to give [[DungeonMaster DMs]] something to play with. The Red Death was known to raise undead, make people insane or change them into monsters, and move locations around; as well as a source of magic for other beings. These traits being similar to those of the Dark Powers of ''Ravenloft'', strongly hints that the Red Death may be one of their number.

In 2004, [[Creator/WhiteWolf Arthaus Games]] published a sourcebook for ''Masque of the Red Death'', under the ''Sword & Sorcery'' imprint, that updated the setting to the 3rd edition of the ''TabletopGame/D20System''. In addition, some of the qabals, and even the Red Death itself, got {{cameo}} mentions in the UrbanFantasy settings of ''TabletopGame/D20Modern''.

!!This campaign setting provides examples of:

* {{Crossover}}: The Odiare domain was once part of Italy, but now is in the [[TabletopGame/{{Ravenloft}} Land of Mists]]
* EldritchAbomination: The Red Death itself.
* {{Retirony}}: In the adventure "Red Tide" a sailor writes in his journal that he's about to propose marriage to his girlfriend as soon as he gets home. He's murdered by a vampire a short time later.
* SwordCane: Available for purchase by adventurers in the setting.