In 2018, IMMORTAL returned with Demonaz performing guitars again, and also as the band’s vocalist, and released its 9th studioalbum, Northern Chaos Gods, which was very well received by both fans and the press.
Come 2023, IMMORTAL sees Demonaz releasing War Against All, the band’s 10th studio album. The record, composed and performed by Demonaz, features some session members like earlier recordings. The album was produced by Arve Isdal, and recorded at Conclave & Earshot Studio in Bergen, Norway by Herbrand Larsen and Arve Isdal. The album was mastered by Iver Sandøy at Solslottet.