Redjellies were a type of non-thinking aquatic lifeform, classified as a species, that lived in the Boiling Sea of the planet Drall. They were known to move together in large groups, and possessed a light, see-through, and fragile physical form. Their habitat was a slightly salty lake located inland, which was heavily populated by kettleweed algae during the rainy season. During the summer, the lake would reach boiling temperatures as the algae died off and released significant quantities of gas.
The initial mention of red jellies occurred in Suns of Fortune. This sourcebook was published in 2014 by Fantasy Flight Games for their Star Wars: Edge of the Empire role-playing game.