Some rare Matryoshkas comprised of seven dolls each were spread over the years and ended up distributed randomly among some antique collectors. These collectors have arranged a meeting to exchange dolls and try to reassemble the rare Matryoshkas. Obviously every collector wants to leave this meeting with the most valuable collection. But who will win?
Matryoshka is played over four rounds. Each round, each player shows a Matryoshka from his hand and all other players make a hidden trade offer. After inspecting all offers, the player trades his card with another player.
At the end of each round, players must reveal a part of their collection by placing Matroyshkas on front of them. This way other players know what they're looking for. The player who has the most valuable collection at the end of the game wins.