In Haarlem, Netherlands, there is a metal music festival called Complexity Fest. Deathcore, mathcore, progressive metal, and other metal subgenres are among the many that are represented at the festival. The festival is well-known for its technical, intense, and heavy music, which draws metal fans from all over the world.
Complexity Fest was founded in 2016 and has since established a reputation as a heavy music enthusiast's must-attend event. Some of the biggest names in the metal genre, like Meshuggah, Between the Buried and Me, and Sikth, have performed at the festival. The event includes smaller stages in addition to the main stage, allowing up-and-coming acts to demonstrate their skills and get recognition. Complexity Fest has established itself as a mainstay of the European metal festival scene thanks to its stellar roster and fervent attendees.