In brief

• Mystic Festival 2027 has added four bands: Killswitch Engage, Sinister, Castle Rat and SLIFT.
• The festival runs June 10 to 12, 2027, at Gdańsk Letnica.
• Killswitch Engage, the Massachusetts metalcore group, is the biggest name in the new announcement.
• Faith No More, Helloween and Marilyn Manson were already confirmed as headliners.

Four new bands join the lineup

Organizers of Mystic Festival have added four acts to the 2027 lineup, only two days after their previous announcement. The headliner of the new group is Killswitch Engage, the American band from Massachusetts that has been among the defining names of metalcore for more than two decades (Mystic Festival 2027 nie zwalnia tempa! Kolejne gwiazdy dołączają do święta metalu – Interia Muzyka) (Mystic Festival 2027 ogłasza kolejne gwiazdy! Killswitch Engage, Sinister, Castle Rat i Slift zagrają w Gdańsku – liverock.pl) (Ikona metalcore’u na Mystic Festival 2027! Cztery nowe ekipy w składzie imprezy – terazmuzyka.pl). Their sound mixes sharp, aggressive riffs with melodic, soaring vocal passages.

The other newcomers are Dutch death metal veterans Sinister, French trio SLIFT, and Castle Rat from the United States. Sinister bring a brutal, old-school take on death metal. SLIFT play a mix of psychedelic rock, stoner and experimental heavy music that leans toward space rock and improvised passages. Castle Rat combine classic doom metal with a theatrical fantasy aesthetic on stage.

Dates and venue

The festival takes place on June 10 to 12 in Gdańsk, at Gdańsk Letnica on the grounds of the former shipyard (Mystic Festival 2027: "fantastyczny metal" i więcej. Oto nowe ogłoszenia | eBilet NOW – eBilet). Killswitch Engage are scheduled for June 11.

Earlier announcements

The organizers had already confirmed Faith No More, Helloween and Marilyn Manson as headliners. Other acts previously announced include Children of Bodom, Watain, Converge, Lorna Shore, Cryptopsy, British Lion, John Garcia, Mondo Generator and Dogma.