In the world of online casino services there is a wide variety of games, easy and difficult ones. Some of the easiest games are scratch cards and casino online slots. Here is a brief introduction concerning the issue of what these games are. Scratch cards serve a vast variety of purposes: gambling techniques, protection of information about PIN codes for mobile phones and credit cards, etc. Basically, physical scratch cards are plastic or paper cards with an opaque covered area, which is supposed to be scratched to reveal information it is protecting. As one of the most popular areas of use of the scratch cards is gambling, physical scratch cards have attracted the attention of casino services. What if there was a possibility to use the scratch cards over the Internet? Approximately in 2010 this possibility has become available – an online analogue of the scratch cards has appeared. After that there have been developed lots and lots of online gambling games utilizing the principle of scratching a card and gaining immediate winnings. At any online casino people can buy scratch cards and collect the winnings. Another popular gambling method which has been transferred to the virtual environment of an online casino is slots, which is called casino online slots in its online version. Physical slot machines are the gambling devices; and it is necessary to incent a coin and pull a lever to get the machine started. Then, a combination of pictures on the spinning reels, which comes out, will be a winning or a losing one. To get a winning combination is to get identical pictures on all of the three reels. The principle is the same for the virtual analogue of the game. At casino online slots it is enough to press the button to get the mechanism of gambling started. However, to the joy of gamers, there is one substantial difference of casino online slots from regular casino slots. This difference is the possibility of winning a jackpot; and that is not all coins in a regular slot machine. Casino online slots have jackpot comprising a substantial sum of money from the gambling accounts of many other people playing slots. Bringing the facts together, it is possible to say that scratch cards and casino online slots are among the simplest games of chance. The main advantage of these two games is that both of them are suitable for all people who are just starting gambling and perfect for getting used to playing the games in general.