This Campaign 3 insert is designed to be compatible with Carcassonne and the first five expansions to the game: Inns & Cathedrals, Traders & Builders, The Princess and the Dragon, The Tower, and The Abbey & Mayor. The insert also includes three bonus trays for use in one of the expansion boxes to store the Count, King & Robber, Bridges, Castles and Bazaars, Hills & Sheep, and Under the Big Top expansi