Abstract: Games in which players cooperate to help each other score points or win prizes are described. In a game, players are grouped into rooms where they can collect puzzle pieces using a random selection technique, such as a spinner. The spinner can provide puzzle pieces, points, additional spins, and/or loss of spins. The player can position a puzzle piece on a game board, offer to give a puzzle piece to another player in the room, and/or offer to trade a puzzle piece for another player's puzzle piece. The other players can accept or reject proposed gifts and/or trades. The player can collect and use the puzzle pieces to complete the puzzle. The player can earn points for completing the puzzle, which may be used to win a prize.