(Just my two cents before the official answer:) In 6 players (and constant 15 turns per game), the Captain role will meet half the players twice and half the players three times, which is kind of a big difference, putting the game into imbalance. The cards *will* barely handle the needs of six players, but I guess you'll scrape yourself of some fun. Plus, Daisy doesn't contain the player scoring card, so I daresay it's meant only as alternative submarine (with no changes gameplay-wise). However, there are some animal tokens in stands, because there is a free space on the Daisy punchboard. And we use one of them as the Captain-pawn, because otherwise it might be hard to keep track of who's the Captain waiting for cards from other players.