From the introduction:
The Red Dawn is set on the continent of Caloreimus, formerly a peaceful realm, and heart of The One World. It is bordered with the cold, North lands of Zylbour, and is home to the great god, Lothar.
After the death of King Tarnis, Caloreimus suffered by the
hands of a deceitful prince, Falcon Dan. In his quest for power, Falcon awakened the interests of the sleeping armies, who have patiently waited for the collapse of organized society.
The ruleset largely is derived from a previous live-action roleplaying game titled Castleland Live! which was, in turn, derived from a long running tabletop RPG campaign.