Card Games are one of the oldest kind of games, known world-wide but with different purposes, symbols and rules. One important difference between the games, besides the main purpose, are the possible combinations and their effects. Cards are used in casinos as well, for games such as poker which got really famous during the last years. But traditional games such as Skat, Mau-Mau or UNO, Hearts and Durak are very popular in the online-world and well-liked, too. The great advantage is that you can play those live against other players anywhere around the planet, and you don't need to use real cards which decreases the chance of cheating or spying at other player's cards. Some games are about doing one action at a certain time to block your enemy and not to show any facial expression – with your pokerface. Logical thinking is the most important factor for card games, and for those such as "Set!" require concentration and attention as well.