The game is based on a Japanese light novel, Durarara!! http://en.wikipedia.org/wiki/Durarara!! One of the 500-yen games produced at Game Market 2010 in Tokyo, Japan. The deck consists of 15 each of three different color cards without numbers. These three colors represent three factions. You play and draw almost all the cards in front of you. The last three cards in your hand determine which faction you belong to: Blue, Red, Yellow or Daraas. You only score points if the faction you belong to is the one that most number of players belong to. In that case, you score the number of non-faction colors in front of you (For Daraas, the scores are fixed points). Clever little game.