Release context
Chaos Engine is the debut full-length from Undefined Behavior, giving Ajja and Burn in Noise a complete album framework after years of recurring collaboration. Issued by Frontier Sciences in 2026, it marks a shift from individual joint tracks toward a fully developed project catalogue.
That step is significant because the pair had already established a recognisable shared sound long before making an album. Chaos Engine formalises that history, giving the collaboration enough space to stand beside their separate solo careers rather than between them.