Poison Ruïn is an experimental metal band from the United States known for blending elements of sludge, doom, and noise rock with avant-garde and industrial influences. Formed in the 2010s, the group is characterized by abrasive guitar textures, heavy low-end and distorted rhythms, and an emphasis on atmosphere and textural experimentation rather than conventional song structures. Their music often incorporates harsh vocals, slow to mid-tempo pacing, and a dense, layered production aesthetic that foregrounds mood and sonic intensity. Poison Ruïn's approach aligns with underground heavy music scenes that prioritize innovation and challenging, immersive listening experiences.