Deceitful Sorcery is a black and melodic black metal project from Graz, Styria, Austria, releasing music through Running Wild Productions. Their releases Of Battles and Recaption (2024) and Of Kings and Landscapes (2025) point to a project with thematic interests in warfare and landscape — comparable in atmosphere to other Styrian black metal acts such as Hellsaw and Varulv.

Deceitome is a death metal band from Tallinn, Estonia, formed in 2016. They deliver deceptive, heavy death metal from Estonia's capital.

Deceiver Legion plays black metal from Oulu, active since 2020 and channeling the frozen darkness of northern Finland into deceptive, atmospheric compositions. Their military-formation name suggests organized aggression — black metal as coordinated assault.

Deceivery is a thrash metal band from Uppsala, Sweden, formed in 2024. The project delivers aggressive thrash metal.

December Flower is a melodic black/death metal band from Diepholz, Germany, active since 2008. They blend the darkness of black metal with melodic death metal's emotional resonance.

December Moon is a symphonic/melodic black metal band from Ipswich, England, emerging in 2025. They deliver cold, symphonic black metal from East Anglia.

December Wind is a doom metal band from Sala, Sweden, formed in 2022. The project delivers crushing doom metal.

December XII plays power metal from Kursk, active since 2012 and delivering melodic, high-energy compositions from the Central Black Earth region. Their calendar-date name adds enigmatic significance to music built on soaring vocals and driving rhythms.

Decemberance is a death/doom metal band from Athens, Greece, active since 1998 and self-described as "exploring the deepest aspects of inner hell since 1997." Their discography spans from early demos through Inside (2009) and Conceiving Hell (2017) to the 2023 album Implosions, representing over two decades of introspective extreme metal.