While expansion is the hallmark of “Seafarers” and “Cities & Knights” stands out because of its intricacy, “Traders & Barbarians” is characterized by variation. Requires the Catan base game to play. Well-tried variants such as “Catan Event Cards,” “Harbormaster,” and “Catan for Two” offer alternatives for customizing the game to your own needs. In addition, the 2-player variant allows you to play the Base Game as well as all scenarios of this expansion against only one opponent. Over the course of a campaign with five scenarios, the story is told of how things develop on Catan after the first settlements and cities are built.