In Duos, players compete in teams of twos to score points. On a turn, a player can draw two cards, pass 1-2 cards face down to their teammate, and complete one or more goals in whatever order they wish.

Cards come numbered 1-8 in magenta and blue with multiple copies of each card. Each player has a personal, face-up goal, with one public goal being available for all players, with goals being something like have four blue cards in sequence, have three of the same even number, or have two magenta cards that add to a third magenta card.

As soon as you have the right cards in hand, you can discard them to complete your personal goal or the public one, after which a new goal is revealed, with the achieving player being able to reject the first one revealed. When a team has completed eight goals, each player has one final turn, then whichever team has scored more points for its goals wins.