Oppressor was a technical death metal band from Chicago, Illinois, which formed in 1991 and disbanded in 1999. They released three albums. Three of the band's members went on to form alternative metal band Soil. Oppressor was started in May 1991 by Tim King and Adam Zadel. A month later, they found another guitarist, Jim Stopper, and a drummer, Tom Schofield. They recorded their first demo, World Abomination, in 1991. A second demo, As Blood Flows, recorded in 1992, got them a record deal with Red Light Records, who released their first full-length album, Solstice of Oppression, in 1994. Shortly after the album's release, Red Light went bankrupt and the band was forced to find another label. In the meantime, the band released a one-off live album/compilation album with Megalithic Records, entitled Oppression Live/As Blood Flows.