CATAN Expansion: Explorers & Pirates 5-6 Players (6th Edition)

CATAN: Explorers & Pirates 5-6 Player expansion allows you to add 1 or 2 new opponents without sacrificing ease of play. As in the CATAN: Explorers & Pirates expansion, you’ll build harbor settlements, ships, settlers, and crews and set out across mysterious seas in search of new lands, spices, fish, and gold fields. Complete your mission and you’ll be master of CATAN!

This is not a standalone game, it is an expansion that allows more players.