Portal is an Australian extreme metal band known for its unorthodox fusion of death metal with black metal. The band's hybrid musical style is characterized by heavily distorted guitar riffs, down-tuned rhythms, and vocals ranging from "menacing, echoing" sound effects to guttural grunts.  Lead guitarist Horror Illogium has described Portal's intent as "to capture a cinematic horror scope".  The band members keep their identities obscured and use stage names.