Players work together as the Westeros Treaty and play against the Night King and his icy horde of White Walkers. The movements of the Night King and his army are directed through the Ranger Cards, which serve as vital intelligence reports from the valiant Rangers of the North. Each round a Ranger Card is revealed, marking the Night King’s whereabouts and his destructive plan. To stand a chance against this formidable foe, players must embark on daring expeditions, both North of the Wall and in the Seven Kingdoms, in search of invaluable weapons and other resources to aid in their epic battle.

Victory for the Treaty is achieved if the players can vanquish the Night King before the conclusion of the final round. Players lose if they cannot defeat the Night King before the end of round 6. The Shields on the Score Track are not used in determining victory. They are only used in determining if the Treaty has enough morale to attack the Night King (see Battling the Night King).