Every more or less educated person knows that role-playing games have traditionally more social and collaborative than competitive character. Role-playing games are known to unite their participants into a single team which adventures as a group. These games rarely have winners or losers. This is one of the distinguishing features of all role-playing games, which make them fundamentally different from card games, board games, sport games and other ones. They engage the imagination of players and therefore appeal in the way that films and novels do. Computer games incorporating the game-play mechanics from the role-playing games are referred to as computer role-playing games (or CRPGs). However, due to the popularity of the mentioned games the term ?role-playing games? and RPG have been to some degree co-opted by the modern computer gaming industry. As a matter of fact, there are two world-famous role-playing games designers: Gary Gygax and Jonathan Tweet. A good start of any role-playing game is size. One of the most important questions is regarding the quantity of people possible to be roped into the playing game. A small role-playing game usually includes about twenty people; and a large game is likely to include more. It is often hard to set up complicated inter-woven communications between many people and equally hard to keep track of the actions of every character. If the person is going to write an event, mid-ranged games (ranging from 15 to 20 players) are considered to be the easiest to write for. The person is likely to invent enough characters for a number of conflicts and various interactions. It is usually harder to generate the necessary amount of conflict in smaller groups and on the other hand it's more difficult to stay on top in the large group of players. There are several types of role-playing games: one-shots, on-going games and chronicles. One-shot events can be written for almost any group size while chronicles work best with smaller groups, while on-going games are known to work best with groups consisting of numerous players. Thus, speaking about role-playing games, there is a plenty of details pertinent to each of the mentioned role-playing games types. A single and self-contained event is also known as a one-shot game. Such games usually require certain scripting by the staff. The characters taking part in the game should have important information and various reasons to make interactions with other game characters. One-shot role-playing games often have limited space. So, this game type usually takes place in a closed room situation. Such games are considered to be ideal for conventions and other places where the person is unlikely to continue the game-play. The event is known to have a clear start and finish, certain goals and concepts. It is possible to change the rules to handle the abilities, skills and conflicts which pertain to this specific game. In conclusion, it is necessary to admit that on-going games are considered to be the most ambitious style of role-playing games; and chronicles are the games which combine lots of advantages of the mentioned above role-playing games types.