Frilled Dragons, also known as Frills, were released alongside Geode Dragons on February 10, 2009. Their egg description is shared with Skywing and Horse Dragons as well as Ochredrakes, though they only share a biome with Horse dragons. These dragons were discontinued for almost 6 years, and on May 21, 2016, they were re-released into the cave with an entire updated set of sprites, as well as new dimorphic adult and hatchling sprites, to celebrate Dragon Cave's 10th birthday.