In Boreal, two adventurous women explore the ruins of the ancient world in search of knowledge. On their turn, players draft cards from a common river (or reserve a card) to try to get the ruins cards that bring the most knowledge. Depending on how many resources players have, they will have access to a limited number of cards, possibly all of them. After one or both players have reached ten cards, the game ends, and whoever has the most knowledge wins.