Computerized simulations based upon the afore-
mentioned tabletop rulesets have become more
prominent recently. Over the last two decades,
these CRPGs have endeavored to incorporate
social interaction via networking, beginning humbly
in the realm of text based chat rooms, and soon
moving to static persistent worlds represented in
the text MUD and the like (MUSHes, MOOs and
MUXes). Currently these have evolved to
incorporate graphical representations of tokens
(characters, equipment, monsters, etc.), as well
as physical simulations obscuring much of the
underlying rules of the games from users.    
In pen and paper RPGs, participants play the parts
of characters in an imaginary world that usually is
organized, adjudicated, and sometimes created by
the gamemaster, usually with the support of rules,
simple or complex. Some newer RPGs expand the
players' powers beyond dictating the actions of their
player characters, making them "mini-GMs". At the
most radical, an RPG may have rapidly rotating GM
duties, or no GM at all.
   

The cooperative aspect of RPGs comes in two forms.

The first is that the players are generally not competing against each other. Most sports, board games and card games place players in opposition, with the goal of becoming the winner. An RPG is not usually a zero-sum game; the only way to actually lose is to not enjoy the game.
The second form of cooperation is that all of the players are writing the story together, as a team. At the end of an RPG session the events that transpired could be written into a book that would tell a story written by all of its participants.
In such games, characters gain various abilities based on gameplay and typically involving the use of several statistics (such as strength, dexterity, intelligence, charm, etc.), which may in some game systems be advanced.
The term is used for two distinct types of games. One is typically a pen-and-paper game played with dice by several people. The term is also used as a name for a genre of video games that for obvious reasons lack the "role-playing" element of pen-and-paper games but borrow many gameplay elements from said games.

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  What is a Roleplaying game? 
A role-playing game (RPG) is a type of game where players assume the role of a fictional character, via role-playing. In fact, many non-athletic
games involve some aspect of role-playing; however, role-playing games tend to focus on this aspect of behaviour.

Introduction
At their core, these games are a form of interactive and cooperative storytelling. Whereas cinema, novels and television shows are passive,
RPGs engage the participants actively, allowing them to simultaneously be audience and author. A example of this difference could be the
classic scene in a horror film when a doomed character ventures alone into the basement to fix a broken fuse. The audience experiences
dramatic irony and says, "Don't go down there!" because they know the monster is lying in wait. In an RPG, the player may choose what to do
about the broken fuse.