To play this game, start by setting up the game board with Castle Bravehold in the center. Shuffle the new cards and distribute them among the players. Use the special Support tokens as per the rules to enhance your defenses. When Agranok's army attacks, play your cards strategically to fend off the invaders. Remember to keep track of the Monster's strength and the state of your castle. After each game, store the cards and tokens in a dry place to avoid damage. Keep the box closed properly to prevent loss of pieces.