This expansion brings different features to the forest tiles. You can can can use them separately or with the origin expansions. The rules of the origin expansion applies so no additional rules are required: 3 tiles with (tree shaped) crop circles, 3 vineyard tiles, 3 hill tiles, 3 bazaar tiles, 3 tiles with flying machine symbol, 3 tiles with mage symbol, 2 tiles with a robber symbol, 4 tiles with wind roses.