Room of Madness is a female-fronted heavy metal band from Linköping, Sweden, active since 2017. Fronted by vocalist Agneta Berg, the band blends heavy metal intensity with thrash and progressive elements across releases like 'Satan's Queen' and 'Kingdom of the Dead.'

Room21 is a melodic death/thrash metal band from Jyväskylä in central Finland, formed in 2022. The band fuses melodic death metal with thrash velocity from the Finnish lake district.

Progressive metal band from Cardiff, Wales, formed in 2022. Their approach delivers technically ambitious progressive compositions from the Welsh capital.

Rootface is a Finnish death metal project formed in 2023. The project channels death metal from the Finnish underground.

Vienna metalcore band formed in the mid-2000s who dubbed themselves inventors of 'Vienna Moshcore.' Their discography includes the EPs Welcome to the Pit and Hated Since Day One (both 2008) and the full-length Dominate the Chaos (2011), establishing them as early figures in the Viennese heavy music underground.

Roots is a thrash metal band from Hamburg, Germany, formed in 2018. The band adds to Hamburg's deep legacy of thrash metal with aggressive, high-energy performances.

Atmospheric black metal project from Leeds, England, active since 2019. The project channels sweeping, nature-inspired atmospheric black metal from West Yorkshire.

Death/doom/groove metal band from Porto, Portugal, formed in 2022. Their triple-genre approach delivers varied heaviness from Portugal's northern capital.

Roots of Disease is a death metal band founded in 2013 in Dobrich, Bulgaria, that later relocated to Plovdiv, and remains active as an independent act. The band's trajectory from the Black Sea coast to Bulgaria's second-largest city reflects the broader movement of musicians toward the country's developing metal hubs.