来自芝加哥的黑金属团体。
Although he's employed a number of sidemen over the years, Nachtmystium is essentially the work of Chicago native Azentrius, who began recording demos in 1998 and continues to unleash regular examples of raw, misanthropic, Scandinavian-style black metal (think Darkthrone, early Mayhem, Satyricon, etc.) on releases such as 2002's Reign of the Malicious, 2004's Demise, and 2006's Instinct: Decay.