Formed in 2015, SUNLESS draws influence from pioneers of extreme and dissonant metal such as Gorguts, Ulcerate, and Meshuggah, reinterpreting the sounds through an abstract lens that is all their own. Comprised of bassist Mitch Schooler (Nerves, Modulus), drummer Taylor Hamel (Aziza), and guitarist/vocalist Lucas Scott (Obsolete, Australis, Pestifere), the band features a prominent rhythm section, a scattered assortment of time signatures, interwoven and complex arrangements, and bellowing death growls, akin to the output of Artificial Brain, Baring Teeth, and Pyrrhon.

SUNLESS has toured and performed across the United States and Canada in support of their debut full-length album Urraca with like-minded bands such as Gigan, Suffering Hour, and Plebeian Grandstand. Tracked by Adam Tucker at Signaturetone Recording (The Crinn, Ambassador Gun, Maeth) in their hometown of Minneapolis, Minnesota and mixed/mastered by Colin Marston at Menegroth, The Thousand Caves in Queens, New York, Urraca delivers a relentlessly engaging onslaught of complex and dissonant death metal with nine tracks encompassing a dense forty-four minutes. The album is presented appropriately in a psychedelic and abstract visual manner with artwork by former band member Andrew Notsch (Youwretch) aka Hollow Dusk and logo by Stephen Wilson aka Unknown Relic.