We include Shared-author fiction when they become storytelling games.
Shared-author fiction is where a story
is told (or written) in successive
pieces by different authors. It is
distinct from other forms of
collaborative writing in that each
piece of text is written by a single
author. Thus, a simplistic
shared-author piece might be made by
two people where one person writes
odd-numbered pages while the other
writes even-numbered pages. The story
is written in order, where each author
must pick up where the last one left
off and continue in a coherent
narrative.
This becomes role-playing when each
author has associated characters which
they own. Then each author may write a
section about what their character
does. These are role-playing games of
a sort which these days are typically
played online using web-based bulletin
boards or other internet forums to
post the story text. Unlike most
computer games or tabletop games, a
true shared-author game has rules
structured as etiquette and style
guides rather than means of resolution
(i.e. "no curse words", "no sexual
situations", etc.). Often the author
of a given character has final word
over anything that seriously impacts
that character. i.e. A character can
only be wounded or killed with that
player's permission.
Shared-author/role-playing sites
frequently are based on science
fiction and fantasy television series
-- evolving out of the phenomenon of "fan fiction". There are numerous Star
Trek shared-author RPGs, for example,
along with Xena, Buffy, and various
Japanese anime series.
Really, there is no clear line between
shared-author RPGs and others. The
form is distinct mainly in that it
creates a (hopefully) coherent text
narrative as its product. However, it
certainly can overlap with tabletop
play and online computer games. Some
tabletop games are played over email
(called Play-By-Email or PBEM). I list
below a few links to what I would
consider shared-author roleplaying
games.
Summary taken from http://www.darkshire.net/jhkim/rpg/whatis/ because I'm lazy.