What is Catan: Traders & Barbarians?
Catan: Traders & Barbarians is Klaus Teuber's toolbox expansion — not one new game but five scenarios and four variants that let you rebuild the base game to taste. Some are small rule swaps you'll never play without again; others are full campaigns as deep as Cities & Knights.
The variants are drop-in fixes: the Friendly Robber shields players who still have 2 or fewer victory points, Catan Event Cards replaces the dice with a statistically balanced deck, Harbormaster adds a new special card for coastal builders, and Catan for Two makes a genuine two-player game. The scenarios are full experiences: The Fishermen of Catan, The Rivers of Catan, The Caravans, Barbarian Attack, and the flagship Traders & Barbarians, in which you push a wagon along the roads of Catan hauling glass, marble, sand, and tools to rebuild the Castle.
Coming from base Catan? The mental shift is that roads stop being just a race for Longest Road and become infrastructure you actually drive on. In the title scenario, a road you built two turns ago is the difference between reaching the Castle this turn and stalling one intersection short — and a rival's road will carry your wagon too, for a gold coin toll.