MAMMOTHFEST 2026: A Triumphant Final Day (13/06/26)

 

The fourth and final day of Mammothfest 2026 arrived with high expectations, a diverse billing of heavy subgenres, and an eager crowd ready to see out the festival in style. Covering everything from local doom and modern djent to Swedish alternative rock and progressive metal royalty, June 13th proved to be an unforgettable marathon of live music.

The afternoon kicked off promptly at 17:30 with Katharsis, a fierce three-piece outfit hailing from Thessaloniki. Though early festival logistics meant missing their live visual delivery, reports from the barrier confirmed a devastatingly heavy start to the day. The trio tore through a calculated four-song assault alongside two brand-new, unreleased tracks that hint at a massive future release.

Katharsis Setlist:

1. The Last Battle

2. Rotting Kingdom

3. Eternal Voyage

4. Beneath the Swamp

(Plus 2 unreleased tracks)

Up next at 18:15 were Athens-based progressive groove metal/djent technicians Herta. They wasted no time injecting a massive dose of adrenaline into the growing crowd. Delivering precise, polyrhythmic syncopation and bone-shattering riffs, their performance of tracks like Monolith and The Snake Devours the Wolf proved exactly why they are a force to be reckoned with in the Greek modern metal scene. By the time they closed with Control, the crowd was thoroughly warmed up.

Herta Setlist:

1. Monolith

2. The Snake Devours the Wolf

3. Labyrinth

4. Beyond the Dead

5. The Path

6. Incarnation

7. Control

As the clock struck 19:00, the festival's namesake vibes truly took over with the arrival of Acid Mammoth. The Athenian doom/stoner icons laid down a wall of fuzzy, monolithic riffs that shook the venue to its core. Moving through the thunderous Supersonic Megafauna Collision and the suffocatingly heavy grooves of Jack the Riffer, their set was a masterclass in slow-burning, psychedelic heaviness.

Acid Mammoth Setlist:

1. Supersonic Megafauna Collision

2. Tree of Woe

3. Berserker

4. Untitled

5. Them!

6. Jack the Riffer

Crossing the North Sea to join the billing, London’s Seven Sisters took the stage at 20:00, shifting gears into the realms of progressive heavy/power metal. Armed with twin-guitar harmonies reminiscent of classic NWOBHM mixed with modern complexity, their set was melodic, soaring, and technically flawless. Highlights included an epic rendition of The Cauldron and the Cross and the brilliant melodic hooks of Andromeda Descending.

Seven Sisters Setlist:

1. The Cauldron and the Cross

2. The Artifice

3. Andromeda Descending

At 21:00, Sweden’s Ambush brought pure, unadulterated 1980s traditional heavy metal nostalgia to the stage. Exuding high energy, leather, and piercing vocals, they triggered the first massive sing-alongs of the evening with tracks like Firestorm and Desecrator. A surprise, blistering cover of Judas Priest’s Metal Gods sent the crowd into a frenzy, setting the perfect stage for the final track, Don't Shoot (Let 'em Burn).

 

Ambush Setlist:

1. Evil in All Dimensions

2. Maskirovka

3. Possessed by Evil

4. Heading East

5. Firestorm

6. Desecrator

7. Natural Born Killers

8. Metal Gods (Judas Priest cover)

9. Don't Shoot (Let 'em Burn)

As night fell at 22:15, Magna Carta Cartel offered a mesmerizing change of pace. The Swedish alternative rock band draped the venue in a cinematic, dreamlike atmosphere. Their synth-kissed guitars and melancholic melodies felt like a breath of fresh air. Tracks like Silence, Metropolis Flow, and the hauntingly beautiful "Valiant Visions Dawn" captivated the audience, showcasing the depth of the festival's curation.

Magna Carta Cartel Setlist:

1. This Time

2. Turn

3. Sleepy Eye June

4. Silence

5. Metropolis Flow

6. Darling

7. Sway

8. Arrows

9. Savantgarde

10. Valiant Visions Dawn

Finally, at 23:30, progressive metal titans Soen stepped into the headlining spotlight to close out Mammothfest 2026. The Swedish quintet delivered a flawless, emotionally charged performance that balanced intricate technicality with massive, anthemic hooks. From the opening punch of Mercenary and Antagonist, Joel Ekelöf’s vocals were pristine, while Martin Lopez’s drumming anchored the night with unparalleled groove. The emotional weight of Lotus and Illusion brought chills to the audience, before the band brought the entire four-day festival to a triumphant, heavy end with a roaring performance of Unbreakable.

Soen Setlist:

1. Mercenary

2. Antagonist

3. Fraccions

4. Memorial

5. Lascivious

6. Discordia

7. Martyrs

8. Lotus

9. Primal

10. Violence

11. Illusion

12. Unbreakable

TEXT: Nick Parastatidis

PHOTOS/VIDEOS: Theofilos Bachtsevanidis