Only a small number of people know the truth of the world. The people who have Super-Powers formed into 8 different factions and control the world surreptitiously. These people now come together for a same purpose: taking over the whole world and dominating all the factions. UnderWorld is a card game that designed for two players. With the expansion packs, it will support up to 4 players and unlock 2V2 gaming mode. To begin the battle, each player needs to draw 5 cards from two of the factions first and utilize these cards to fulfill the winning conditions. Both side of the players need to fight for several objectives such as obtaining highest points and holding the most district cards through sending out character cards with strategies to beat the opponents. Through expanding influences on those districts or beating opponents’ characters, the corresponding points will be gained. The first player who receives 8 points will win the game.