A narrative or history; a recital or relation.

The fictional reality being portrayed by the game. A term from film and narrative theory borrowed by Nordic role-playing theory. It is discussed extensively in "Beyond Role and Play". This is essentially the same as the Forge term Shared Imaginary Space. References: As Larp Grows Up Beyond Role and Play

In a narrative film, the world of the film's story. The diegesis includes events that are presumed to have occurred and actions and spaces not shown onscreen. See also diegetic sound, nondiegetic insert, nondiegetic sound.

The diegesis includes objects, events, spaces and the characters that inhabit them, including things, actions, and attitudes not explicitly presented in the film but inferred by the audience. That audience constructs a diegetic world from the material presented in a narrative film. Some films make it impossible to construct a coherent diegetic world, for example Last Year at Marienbad ( L'année dernière à Marienbad, Alan Resnais, 1961) or even contain no diegesis at all but deal only with the formal properties of film, for instance Mothlight (Stan Brakhage, 1963). The "diegetic world" of the documentary is usually taken to be simply the world, but some drama documentaries test that assumption such as Land Without Bread ( Las Hurdes, Luis Buñuel, 1932). Different media have different forms of diegesis. Henry V (Lawrence Olivier, England, 1944) starts with a long crane shot across a detailed model landscape of 16th century London. Over the course of its narrative, the film shifts its diegetic register from the presentational form of the Elizabethan theater to the representational form of mainstream narrative cinema.

According to Gerald Prince in A Dictionary of Narratology, diegesis is "(1) The (fictional) world in which the situations and events narrated occur; (2) Telling, recounting, as opposed to showing, enacting." In diegesis the narrator tells the story. The narrator presents to the audience or the implied readers the actions (and perhaps) thoughts of the characters (including perhaps, but not necessarily, all that dwells within their imagination, their fantasies and dreams).