Nebrian

Nebrian is a term used in science fiction and fantasy to denote a substance, energy form, or celestial body that is treated as a notable resource within a fictional universe. Because Nebrian appears in many different works, there is no single canonical definition or property set.

The name is usually connected to cosmic or nebular imagery, and writers often credit its discovery to studies of distant nebulae or unexplored regions of space. In some narratives, Nebrian originates as a mineral ore; in others, it is a gaseous or crystalline energy matter with unusual stability or reactivity.

Commonly, Nebrian is depicted as rare and valuable, used as a high-density fuel, power core, or component enabling advanced technologies. Its extraction and processing are typically hazardous or technically demanding, requiring specialized facilities, containment, and security. In some stories, Nebrian's properties grant near-limitless energy, while others emphasize its volatility or ethical and political implications.

Nebrian has appeared in various media, including novels, tabletop role-playing games, and video games, where it functions as both a plot device and a resource management element. Its flexible definition allows authors to tailor its role to different genres, from space opera to techno-thriller.