XCIII is an avant-garde progressive metal project spearheaded by Guillaume Beringer from Nice, France, with the name referencing Roman numeral 93 and Charles Baudelaire's poetry. Their 2022 album "Void" was mastered by Steve Kitch of The Pineapple Thief, and their sound draws from influences like Ulver, Porcupine Tree, and Anathema to create dreamy, hypnotic soundscapes that blur the lines between progressive metal and post-rock.

xDevourx is a straight edge metalcore band from Belgium, active since 2015 and deeply rooted in the hardcore punk and straight edge community. Their discography includes releases like "Flowers Of Fire, Walls Of Water" and "Defiant Until The End," as well as splits with other edge bands like XREIGNX.

Xelas is a melodic death/thrash metal band from London, England, formed in 2011. They combine the melodic sensibilities of Scandinavian death metal with thrash metal ferocity, delivering technically proficient yet accessible extreme metal from one of Europe's largest music capitals.

Xemplar is a progressive metal band from Florence, Italy, formed in 2007. They craft sophisticated progressive metal compositions that draw from the rich musical heritage of their Tuscan home, delivering intricate arrangements and ambitious songwriting.

Xenith is a melodic death/thrash metal band from the United Kingdom, formed in 2011. They combine melodic death metal hooks with thrash metal intensity, creating aggressive yet accessible compositions that bridge the gap between extreme metal subgenres.

Xenocide is a death/thrash metal and grindcore band from Dublin, Ireland, formed in 2011. They deliver a relentless fusion of death metal brutality, thrash metal velocity, and grindcore chaos, representing the extreme end of Ireland's metal underground.

Xenocracy is a melodic death metal band from Graz, Austria, founded in 2020. They released their debut EP "Time's Drowning" in 2021, followed by a full-length album "Impermanence" in 2023, blending different metal genres into a unique and aggressive sound.

Xenofaction is a technical death metal band from Perugia, Italy, formed in 2017, built around a cyberpunk space opera concept over a decade in development. Their 2017 promo features members with pedigrees in bands like Hideous Divinity, and artwork by Fabio Listrani, known for his work with Marvel and Titan Comics.

Xenolith is an industrial black metal project from Baldock, England, formed in 2009. Their releases including "Obscure Reflections" blend the harsh atmospherics of black metal with cold, mechanical industrial elements, creating a uniquely abrasive and dystopian sound.