Progressive post-metal band from Città di Castello in Umbria, Italy, formed in 2025. Their approach blends progressive complexity with post-metal's atmospheric expansiveness from the Tiber Valley.

Raze the Void is a progressive/melodic death metal band from Essex, England, active since 2016. The band merges progressive complexity with melodic death metal from east of London.

RCO is a black metal project from Nicosia, Cyprus, formed in 2024 and incorporating punk, crossover, and progressive influences into its black metal foundation. The project represents Cyprus's small but growing contribution to Mediterranean extreme metal.

Re-Mind is a progressive metal band from Baden-Württemberg, Germany, formed in 2019. The band explores complex arrangements and intricate musicianship within the progressive metal framework.

Reagan Ralph is a progressive heavy/thrash metal band from Plymouth in Devon, southwest England, formed in 2021. The band delivers progressive metal from the naval port city on the English Channel.

Thrash/progressive metal band from Chania, Crete, with roots dating to 2000. Over two decades of technically ambitious thrash-progressive metal from the historic Cretan harbor city.

Reason Sleeps is a progressive/melodic heavy/thrash metal band from the Île-de-France region around Paris, active since 2003. Over two decades of progressive metal make them veterans of the Parisian scene.

Reasoning Reflections is a progressive death metal band from Nicosia, Cyprus, focused on creating conceptual stories that reflect their contemplations on existence and philosophy. Their 2019 debut Saṃsāra is a sci-fi concept album exploring cycles of death and rebirth of the universe through nine tracks of technically demanding progressive death metal.

Recast is a thrash/progressive metal and crossover band from Munich, Germany, formed in 2024. The band merges progressive complexity with thrash aggression and crossover energy from Bavaria's capital.