The Clearing Path from Milan deliver progressive black metal that navigates through dense sonic forests since 2015. A decade of path-finding compositions from Italy's financial capital.

The Clips from Lecce deliver doom metal from the baroque capital of Puglia since 2015. A decade of crushing compositions from the ornate southern Italian city.

The Clockwork from Madrid blend thrash metal with metalcore precision, creating mechanically tight compositions since 2006. Nearly two decades of activity from the Spanish capital have produced a refined hybrid of old-school thrash velocity and modern metalcore structure.

The Clockwork Deity from Brighton deliver an ambitious fusion of symphonic, technical, brutal death metal, and grindcore since 2017. Their name — suggesting a mechanistic god — drives compositions of divine complexity from the Sussex coast.

Founded in France in 1996 by Nicolas Saint Morand (Hreidmarr) initially as Count Nosferatu, The CNK — the name standing for The Cosa Nostra Klub — arrived at their industrial metal identity after Hreidmarr's tenure fronting the symphonic black metal act Anorexia Nervosa. Their 2002 comeback album Ultraviolence Über Alles established a confrontational electro-metal sound combining martial rhythms, dense electronics, and provocative imagery, followed by the more orchestral L'Hymne à la Joie (2007). The band occupies a singular niche in the French extreme metal scene, blending industrial aggression with theatrical, science-fiction-influenced orchestration.

The Cold View is a German funeral doom metal project from Darmstadt, formed in 2012, with some claiming they play "the world's slowest funeral doom." Their extensive catalog — including "Weeping Winter," "Wires of Woe, Ways of Waste," and splits with Abysmal Growls of Despair — explores glacially paced, crushingly heavy doom.

The Conflict Within from Ipswich deliver groove metal and metalcore with the internal-struggle intensity their introspective name demands since 2013. Over a decade from the Suffolk port town has produced compositions that wrestle with personal turmoil.

The Conjuring is a black metal band from Athens, active since 2013. Their music delivers dark, ritualistic black metal from the Greek capital, evoking supernatural invocation through extreme sonic intensity.

The Corona Lantern from Prague craft doom and sludge metal that balances crushing heaviness with atmospheric depth, active since 2015 in the Czech capital's diverse metal scene. Their sound draws from the slow, suffocating weight of doom tradition while incorporating the abrasive textures of sludge.