Defend your cities and build a civilization worthy of legend in Catan: Cities & Knights — one of the most acclaimed Catan expansions ever made. Barbarians threaten the island, and only by developing your knights and city improvements can you hold them back. Adds rich new layers of strategy and interaction to the base game. Requires the base Catan game to play. For 3–4 players, ages 10+, plays in 120+ minutes.