The Lost Cities: Sixth Expedition promo pack contains a set of grey cards that are added to the old base game as an additional (6.) expedition. The sixth expedition has the same rules as the other five. Given out at Gen Con 2016. Contents: 9 Expedition cards with values 2-10 3 Wager cards Sixth discard pile card (back of instruction card) Instructions: With the exception of the changes described here, the rules of the base game remain the same. Place this card with the reverse side facing up next to the game board. This is the discard space for a new, sixth expedition. Shuffle the new cards into the deck and play as usual, now with six expeditions. Reimplemented: The revised version of Lost Cities already includes a sixth expedition printed to the backside of the board. This sixth expedition there is colored purple instead of grey.