From the back of the book:
Mythic Fantasy Roleplaying in the Classic Setting of Glorantha...
A Marvelous Roleplaying System
HeroQuest is an innovative, dynamic, and flexible narrative rules engine. It presents a simple rules system that allows Game Masters to run games modeled on ancient myth, epic sagas, and tales of high adventure. HeroQuest encourages creative input from players, resulting in an exciting, unpredictable narrative created through group play.
A World of Gods, Heroes, and Mythic Fantasy
Glorantha is the most elegant, original, and imaginative fantasy setting since Middle Earth. It is a world of exotic myth and awesome magic, self-contained and unique in its creation. The existence and use of the magical and mythic realms are central to the physics of Glorantha. Here the gods and heroes guard and guide their followers, sharing magics while pursuing their own enigmatic ends. Glorantha’s detailed cultures, histories, and myths are shaped by gods, heroes, and magic, and yet are plausible and logically self-consistent. Glorantha has been the setting for the original RuneQuest roleplaying game, and the award-winning computer game King of Dragon Pass. Glorantha is fully described in the Guide to Glorantha, available from Moon Design Publications.
A Complete Roleplaying Game
HeroQuest Glorantha contains the necessary game systems, comprehensive descriptions of major cultures, extensive design and staging notes, an epic scenario, and an introduction to the world of Glorantha.