ploii

ploii is a fictional exoplanet that appears in a loose, collaborative science fiction universe created by a network of writers and artists. The term has circulated since the early 2010s in web serials, novels, and graphic novels. Because it is a shared setting rather than a single canon, different works offer different details, but most descriptions treat ploii as a water-rich world with a tendency toward large-scale oceanic habitats.

Geography and environment: Ploii is typically depicted as an ocean world with sparse landmasses, extensive coral reefs, bioluminescent life, and atmospheric dynamics driven by immense sea currents. Some installments feature floating cities, airborne platforms, or sub-surface habitats interconnected by networks of canals and vents.

Life and society: In various works, intelligences include native aquatic species and humans adapted to life at sea, in buoyant settlements, or in subterranean complexes. Technologies emphasize harnessing tidal and hydrokinetic power, bioengineered ecosystems, and autonomous vessels that patrol trade routes or monitor ecological conditions.

Narrative role and reception: Plioi has functioned as a sandbox for themes such as environmental stewardship, interspecies contact, and adaptation to changing climates. Its flexible lore encourages collaborative world-building, attracting fan authors and independent publishers who contribute derivative stories and art.

See also: Exoplanet in fiction; World-building in science fiction.