Acrylate channels thrash and death metal from Crotone in Calabria since 2022. Named after a chemical compound, they bring an industrial-strength aggression from the toe of Italy's boot, where extreme metal scenes are rare but fierce.

Acronica is a death metal and hardcore band from Murcia, Spain, formed in 2022, fusing death metal's guttural extremity with hardcore's raw, confrontational energy. The band represents the newer wave of extreme metal crossover in southeastern Spain.

Act of Creation merges death and thrash metal from Haiger in Hesse since 2002, one of Germany's longer-running extreme metal acts from small-town central Germany. Over two decades, they have built a reputation for technically proficient brutality from the Lahn-Dill-Kreis district.

Split's Act of Denial deliver a potent fusion of death metal, groove metal, and melodic death metal from Croatia's second-largest city. Launched in 2024, they bring a multi-genre approach to extreme metal with polished production and technical proficiency.

Act of Worship blends black and death metal from Cologne since 2012, their devotional name carrying dark ritual undertones. From the city of Germany's greatest Gothic cathedral, they practice a decidedly unholy form of worship.

Action were a metalcore and death metal band from Teplice, Czech Republic, active from 1998 to 2013, who began in the New York hardcore tradition of Madball and Ryker's before incorporating increasingly heavy death metal riffs and breakdowns. By their final years, their sound had evolved into a toughened moshcore and deathcore hybrid comparable to Hatebreed and All Out War.

Action Jackson are a death metal, melodic death metal, and metalcore band from Berlin, Germany, active since 2012, who blend multiple strains of modern extreme metal. Their sound navigates the intersection of death metal aggression, melodic precision, and metalcore dynamics from the heart of Germany's capital.

Actvs Mortis is a death metal and grindcore band from Santa Cruz de Mieres in Asturias, Spain, formed in February 2019, featuring Txeffy on vocals, Diego and David on guitars, Carmelo on bass, and Remis on drums. Their catalog spans from early demos through the 2021 album Sempiternvs Terror to a 2023 three-way split with Anal Pus and Serrucho, blending death metal, grindcore, and groove elements.

Ad Nauseum delivers death metal from the Lyon and Clermont-Ferrand corridor since 2015, bridging two of France's most active metal cities. Their dual-city origins reflect a collaborative spirit within the Auvergne-Rhône-Alpes metal community.