In LasseMajas Deckarkortspel your goal is to be the first one to solve your crime by collecting cards and adding clues.
After dealing 4 cards to each player, players take turns asking one other player if they have a card matching one in their hand. If a player has the requested card type, they surrender them all to the asking player, and the asking player can then continue asking for a type of card from either the same player or different one. If a player doesn't have the card requested, he says 'På uppdrag' and the asking player then draws from a draw pile.
Once you collect 3 cards of the same type you earn the first of 3 clues. When collecting clues you need to find the 3 matching clues from the same series giving the player a complete narrative of the crime.
Whoever finds all 3 clues first has solved the crime and wins the game.