IXXI formed early 2006, in Stockholm, Sweden. Some pre-recordings where made and in July 2006 the band entered Endarker Studio to record the first self-titled album. In October a video for the track “Ancient Spirits Are” was recorded. In June 2007, almost a year after the recording of the S/T-album it was finally released by Total Holocaust Records.
The very same month, June 2007, IXXI entered Endarker studio once again to record the second opus “Assorted Armament”. Selin left the band prior to the recording and was replaced by Smoker but did make a guest appearance on the track “Armageddon Nobility”. The album was released in December 2007 by Sigilla Malae.