Xinoma is a sludge/post-metal project from Moscow, Russia, formed in 2011 following the breakup of A Lifeless Polar Desert. Originally a full band, it evolved into a one-man project with dark, pessimistic lyrics addressing political, social, and existential conflicts, with their 2019 album "Parasitic Humanity" showcasing expansive atmospheric compositions.

xInstinctivex is a straight edge metalcore band from Milan, Italy, formed in 2024. Their debut EP "Take Your Life Back" was released through The Coming Strife Records and Force Of Reckoning Records, delivering five tracks of aggressive metalcore fueled by straight edge philosophy and themes of overcoming adversity.

Xiom is a progressive death/thrash metal band from Chemnitz, Germany, formed in 2021. They weave together progressive structures, death metal heaviness, and thrash metal aggression into technically complex compositions that push beyond conventional genre boundaries.

Xion is a thrash metal band from the Dalarna region of Sweden, formed in 2018. They play aggressive, riff-driven thrash metal from the heart of Sweden's metal-rich landscape, a country legendary for its extreme music output.

Xipe is a heavy metal band from Vicenza, Italy, formed in 2022. They play traditional heavy metal rooted in the Italian metal tradition, delivering powerful riffs and classic song structures from the Veneto region of northeastern Italy.

Xipe Totec is an atmospheric/technical death metal band from Imola near Bologna, Italy, one of the country's oldest extreme metal acts, having formed in 1995. Named after the Aztec deity of spring and renewal, they blend technical precision with atmospheric depth across a discography spanning nearly three decades.

Xiphoid is a speed metal band from Leuven, Belgium, formed in 2019. They deliver high-velocity riffs and aggressive energy in the tradition of classic European speed metal, contributing to Belgium's thriving underground metal scene.

XisForEyes is a progressive black/death metal band from Newcastle upon Tyne, England, formed in 2013. Their releases including "Convoluted Enlightenment" and "Absolute Corporeal Besmirchment" blend symphonic elements with progressive black and death metal into dense, technically accomplished compositions.

XIV Dark Centuries is a pagan metal band from Zella-Mehlis in Thuringia, Germany, active since 1999. Their lyrical themes center on Germanic paganism and the Thuringian tribe, with a discography spanning over two decades including albums like "Waldvolk" (2020) and "Aus uralter Zeit" (2025), making them one of Germany's most enduring pagan metal acts.