From the release:
Helheim Unbound is a roleplaying game designed with quick resolutions and narrative play in mind. We have created a framework that translates a player's vision for a character into a playable champion. The end result is a system that allows a group to play in a matter of minutes, with minimal complexities to tie down the narrative.
Helheim Unbound can be used as a generic system for practically any setting, but included is an example setting at the dawn of the Viking Age. Whether players embark on daring raids with the Vikings or enlist with King Charles on his crusade to spread the boundaries of Christendom, there is a world filled with conflict and adventure.