The Belgium festival for extreme music, Alcatraz Open Air, has announced the first bands for the next year. The festival will be held from August 6 to August 9, 2026, in Kortrijk, Belgium. There will be four days of mayhem. Powerwolf and Slaughter to Prevail will be headliners. Testament, Biohazard, Satyricon, Dirkschneider, Amorphis, Voivod, Soen, Of Mice And Men, Death Angel, Deicide, Grimson Glory, Vended, Paleface, Fit For Autopsy, Orbit Culture, Mushroomhead, Alcest, and Anaal Nathrakh are the other bands that confirmed at this moment.

There are limited early bird tickets available now: https://bit.ly/Early-bird-tickets-Alcatraz-2026

Here you can see the aftermovie from the 2025 festival edition: