cosetter

Cosetter is a term used in certain online communities and niche creative fields to describe a person who designs or curates cosmic-scale settings for stories, games, or other narrative worlds. It is not a widely adopted or formally defined profession, and it does not appear in major dictionaries or scholarly glossaries. The word appears as a neologism in discussions among science fiction enthusiasts, worldbuilders, and indie game designers.

Etymology and scope: the term blends cosmos or cosmos-related imagery with setter, analogous to roles such as worldbuilder or setting designer. As a result, a cosetter is typically understood to focus on macro-level aspects of a fictional universe, including the structure of galaxies, planetary systems, astrophysical rules, and the broad cultural and technological trajectories that emerge across vast scales.

Role and practice: in practice, a cosetter may draft canonical cosmologies, outline the distribution and properties of star systems, establish the governing physical laws, and ensure internal consistency across cosmic backdrops. They often collaborate with writers, artists, and scientists to produce believable and coherent settings, while leaving micro-level details to other specialists or to collaborative development.

Related terms: related concepts include worldbuilding, setting design, and lore creation. While cosetting is not standardized, it is sometimes discussed alongside cosmology-informed worldbuilding and high-level world design in speculative fiction and role-playing contexts.

See also: worldbuilding, cosmology, setting designer, lore master.