Insidius is a death metal force from Olsztyn, Poland, active since 2012. Blending old-school aggression with technical precision and blackened intensity, their sound captures the cold, unrelenting essence of Polish extreme metal. Their 2016 debut Shadows of Humanity delivered raw, uncompromising power, while 2018's Infamia (Ermland Productions) showcased deeper atmospheres and sharpened songwriting. After years of touring and growth, the band returned to Heinrich House Studio for their third full-length. Titled Vulgus Illustrata, the album arrives fall 2025-eight tracks of razor-sharp, blackened death metal featuring guest spots from Piotr "Peter" Wiwczarek (Vader) and Moyses Kolesne (Krisiun).

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