Catan Exp: Cities & Knights - 6th Edition

The island of Catan continues its journey towards prosperity. After a period of population growth, the inhabitants of Catan face a barbarian invasion of unprecedented scale. Negotiations for resources become more crucial as the population and knights grow. The struggle for Catan is no longer just a matter of commercial supremacy, symbolized by the presence of a metropolis; you must now excel in the defense of Catan to prevail.