Glorantha: The Gods War is based on the vigorous mythic realm of Glorantha, which has been the basis for multiple tabletop board, roleplaying, and even digital games, as well as numerous works of fiction. Its depth and scope has been recognized by numerous aficionados of fantasy and gaming, and now it is brought to you in all its astounding power.

In each round, in the Action Phase players spend the power they have earned from various sources, most importantly how many different types of buildings they have and the Heroquests they have achieved. They then spend power to build more buildings, summon and move units, do battle with enemy empires, and use powerful empire-specific abilities including from their earned gifts. The Council Phase may include an attempt to close the Chaos Rift that threatens the existence of the world and/or the Great Compromise in which an empire may sacrifice power for the greater good and to distribute victory points.

Victory is determined by obtaining victory points from various sources, most importantly the number of buildings controlled each round, paired Heroquests achieved and the Great Compromise, and from runes.