Doomsday Machine is the sixth studio album by Swedish melodic death metal band Arch Enemy, produced by Rickard Bengtsson and mixed by Andy Sneap. It is the third album to feature the vocals of Angela Gossow. The album had some commercial success, debuting at number 87 on the Billboard 200 with first week sales of 12,000 copies.[6] It had sold 65,000 copies in the United States by April 2006.[7]Christopher Amott left the band shortly after recording the album in July 2005 but rejoined 2 years later for the songwriting sessions for Rise of the Tyrant.