An abstract strategy game in which two Viking kings fight over control of a piece of land. The first to either control the five middle spaces or push the other player's king off the board wins.

Players start on each short end of the board and take turns. Each turn they can make five moves. For a move, a player either moves one piece (Hird or King) one step, moves a Hird into or off a Karve (boat), or moves a Karve and all Hirds on it one step. A Karve may have at most four Hirds on it. Pieces entering empty spaces have to stop. Pieces entering enemy-controlled spaces stop on the line between the spaces. After a player's five moves, any conflicts (pieces on lines) are resolved.