About SlackJack, from BoardGameGeek:
Choose your hidden pirate role, convince the captain to pick you for their crew, and beat the others to the buried treasure! But watch out for the traitor - they will keep it all for themselves.
SlackJack is a fast-paced, hidden role game. Each round, one player takes the role of captain who must choose 1-2 pirate players to join them, aiming to form the best Blackjack hand. Every other player has hidden roles with powers and values that could be favorable or treacherous for their crew. Can you convince the captain that you are the right pick? Be warned: if the Captain picks the devious SlackJack, he'll steal the whole pile of gold for himself.
Once the captain picks their crew, the remaining players form their own treasure hunting party and all roles are revealed. The team that is closest to 21 in pirate value will all win gold for their own pockets. Pass the captain role to the next player and head back out on another hunt. The game ends when any player reaches 5 gold: exactly enough to retire to a tropical, traitor-free island.
-description from publisher
