Over 20 million households worldwide own Settlers of Catan. You need this game first to play the different expansions (ie. Seafarers, Cities & Knights etc).
5 to 6 Player Extension
You can now play with just 2 players! Add a harbormaster, a friendly robber, or special events. Play with a wealth of new wooden pieces and capabilities.
Catan: Cities & Knights (2015 Refresh) is an expansion for Settlers of Catan that adds knights, invading barbarians and more!
The Rivals for Catan: Age of Darkness, a 90-card expansion for The Rivals for Catan, includes three separate theme sets that can be used with the base game
This expansion includes new scenarios and opens up roads to even greater wealth or bitter poverty for up to six players.
5 to 6 Player Extension for Seafarers