Xenomorph is a progressive death metal band from Leiden, Netherlands, formed in 2021. They craft complex and forward-thinking death metal compositions that push beyond conventional boundaries, emerging from the Netherlands' deeply rooted extreme metal underground.

Xenophobia is a death metal band from Offaly, Ireland, formed in 2016. They play straightforward, uncompromising death metal from Ireland's rural heartland, channeling aggression and heaviness in the tradition of classic European death metal.

Xenosis is a progressive death metal band from St. Ives, England, formed in 2015. They craft intricate, technically demanding compositions that blend progressive complexity with death metal aggression, contributing to the growing UK tech-death scene.

Xenotaph is a death metal band from Nuremberg, Germany, formed in 2013. They play uncompromising old-school death metal rooted in the European tradition, delivering crushing riffs and brutal intensity from the heart of Bavaria.

Xenotrone is a technical thrash metal band from Dnipro, Ukraine, founded by Kostyantyn Roskosenko. Known for blending genres ranging from jazz to death metal, their releases including "Into the Void" and "Tower of Madness" feature a collaboration with Kelly Shaefer, bringing fresh and innovative compositions to Ukraine's emerging metal scene.

Xeper is a melodic death metal band from Tuzla, Bosnia and Herzegovina, combining melodic riffs with elements of death, progressive, and black metal. Their sound aims to revive the spirit of 1990s extreme metal with a modern production approach, and they have released singles including "Caged" and "Cold December Night."

Xephos is a progressive/industrial metal band from Maybole, Scotland, formed in 2016. They merge the experimental ambition of progressive metal with industrial textures, creating a futuristic and atmospheric sound from the Scottish lowlands.

Xepsura is a progressive metal band from Newquay, Cornwall, England, formed in 2020. They deliver expansive and atmospheric progressive metal from England's southwestern coast, exploring ambitious musical territory with intricate arrangements.

Xerbittert is an ambient/black metal project from Moscow, Russia, formed in 2025. They merge atmospheric ambient textures with black metal intensity, exploring the intersection of beauty and harshness in the Russian extreme metal underground.