Rogue Mistress, subtitled "An Epic Campaign Across the Multiverse", is a collection of adventures published by Chaosium in 1991 for use with either of the fantasy role-playing games Stormbringer or Hawkmoon, both based on the Elric of Melniboné stories of Michael Moorcock.

Rogue Mistress is a campaign of nine chronologically-linked adventures[1] in which the player characters travel to various planes that make up Michael Moorcock's "Million-Sphere Multiverse."

[2] The campaign consists of eight adventures that are played in sequence:[3] In 1977, Chaosium acquired the game license for Michael Moorcock's Eternal Champion stories, and released the boardgame Elric: Battle at the End of Time.

"[5]: 91 In Issue 27 of White Wolf (June/July 1991), Matthew Gabbert noted that this campaign "dramatically captures the flavor and diversity of the Million Spheres."

Gabbert concluded by giving this book a rating of 4 out of 5, saying, "While the price may seem a bit on the high side for an adventure, be assured that Rogue Mistress is 144 pages of long-lasting, high-quality roleplaying.