Hayser

Hayser was a German blackened sludge metal/hardcore band from Osnabrück, Lower Saxony. They were active for a period in the late 2010s before splitting up.

Hayser combined heavy, downtuned sludge riffs with hardcore energy, creating a raw and aggressive sound. The band featured multiple vocalists/guitarists contributing to a chaotic, heavy atmosphere typical of the sludge/hardcore crossover scene. They released material independently and maintained a DIY ethos. The last known lineup included:

Jensen — Bass, Vocals Marco — Drums, Vocals Axhell — Guitars, Vocals Jason — Vocals, Guitars

Members had ties to other projects like Irden and Branded Skin.