Nycters are nocturnal humanoid bats that dwell in dense jungles and deep caverns, where their keen senses and ability to fly give them a significant advantage. Standing around 5 feet tall, they have dark, velvety fur and leathery wings extending from their arms, allowing them to move silently and swiftly through their environment. Their large eyes and pointed ears are adapted to low-light conditions, making them excellent hunters and scouts during the night.

Highly social creatures, Nycters live in colonies and communicate using a complex system of echolocation and vocalizations. They are generally peaceful and prefer to avoid conflict, but they will fiercely defend their territory and kin if threatened. Nycters are also known for their intelligence and curiosity, often interacting with other intelligent species and learning new skills.