Read more about Orcus at: Wikipedia

Official Site: Wizards of the Coast

Orcus is the fiction demon prince, and lord of the undead in many campaign setting for the Dungeons & Dragons fantasy role-playing game. He is named after Orcus of Roman mythology. His symbol is a mace with a human skull as the head. Orcus is one of the most detailed demon lords of the Dungeons and Dragons game and one of a small handful to be detailed in every edition of the game. Orcus was also named as one of the greatest villains in D&D history by the final print issue of Dragon.

Orcus was first presented in the Eldritch Wizardry supplement in 1976, by Gary Gygax and Brian Blume, for the original (white box) Dungeons & Dragons game. Although the book states that there are several such demon Princes, only Orcus and Demogorgon are detailed, "two of the greatest of these exceptional demon lords". Game statistics for Orcus appear on page 27, while a description of Orcus appears on page 35 with an accompanying illustration, and a description for his Wand of Orcus appears on page 42 under the section for artifacts.

In 1977, Orcus (Prince of the Undead), was included in the first Advanced Dungeons & Dragons Monster Manual by Gary Gygax. First edition AD&D game statistics and a description for Orcus appeared in pages 17–18 under the "demon" section, with an illustration of Orcus by David C. Sutherland III on page 17 and an illustration of the Wand of Orcus on page 18. The Wand of Orcus was detailed on page 162 of the 1979 Dungeon Masters Guide, also by Gygax, in the section on treasure (artifacts and relics).

Orcus was a central antagonist for the H1-4 "Bloodstone" series of adventures, by Douglas Niles and Michael Dobson. His involvement was only hinted at in H1 Bloodstone Pass (1985) through the activities of his high priest. In H2 The Mines of Bloodstone (1986), minions of Orcus are involved in a number of activities and plots, and the authors hint on page 7 that "Orcus has special reasons for being interested in Bloodstone Pass", promising that more will be revealed in module H3. On page 21, it is revealed that evil duergar have built a temple to Orcus underground, involving a series of planar gates through which he could one day enter the mortal world; the temple and its inhabitants are described on pages 33–42. The Mines of Bloodstone features an illustration of a representation of Orcus (the head of a horned goat) on page 6, and a pull-out map of the temple of Orcus is featured on pages 23 and 26. H3 The Bloodstone Wars (1987) reveals more details, including the fact that the Witch-King of Vaasa is possessed by Orcus. In the next module the adventurers must defeat the Witch-King in his own castle, and the series then ends in a final confrontation with Orcus in H4 The Throne of Bloodstone (1988).

Orcus has not been a contender in any CBUB matches.