What the hammer? what the chain?
In what furnace was thy brain?William Blake, Songs of Innocence and of Experience, 1794
Walk behind a foundry on the morning after a pour and the furnace is already cold, the finished iron gone to the loading bay, but the slag heap at the far edge of the yard is still smoking, a crust as black as tar over a core that stays red for hours, dumped there because nobody wanted it and giving off more heat than anything else on the site. We know no better picture of sludge metal, the waste left over when hardcore punk and doom were smelted together at the end of the 1980s, still uncooled almost forty years later. Any ranking of the best sludge metal bands is written the morning after. It can only ask which heaps still smoke.
We weighed every band on four measures. Records come first and count double: at least two albums filed under sludge and still argued over. Influence is second, critical standing third, drawn from named readings, chiefly Terrorizer's sludge special of 2009, the ten essential sludge albums Chris Chantler chose for Metal Hammer in 2016 and Rolling Stone's hundred greatest metal albums of 2017. Longevity is fourth and breaks ties. Where the genre's borders run is set out in what is sludge metal; this page argues the order.
| Rank | Band | Formed | Records weighed | Deciding measure |
|---|---|---|---|---|
| 1 | Eyehategod | 1988 | In the Name of Suffering (1990), Take as Needed for Pain (1993) | Critical standing |
| 2 | Melvins | 1983 | Gluey Porch Treatments (1987), Bullhead (1991) | Influence |
| 3 | Neurosis | 1985 | Souls at Zero (1992), Through Silver in Blood (1996) | Influence |
| 4 | Crowbar | 1990 | Crowbar (1993), Odd Fellows Rest (1998) | Longevity |
| 5 | Mastodon | 2000 | Remission (2002), Leviathan (2004) | Critical standing |
| 6 | Baroness | 2003 | Red Album (2007), Blue Record (2009) | Records |
| 7 | Acid Bath | 1991 | When the Kite String Pops (1994), Paegan Terrorism Tactics (1996) | Influence |
| 8 | Thou | 2005 | Heathen (2014), Umbilical (2024) | Critical standing |
| 9 | Kylesa | 2001 | Static Tensions (2009), Spiral Shadow (2010) | Records |
| 10 | Buzzov*en | 1990 | To a Frown (1993), Sore (1994) | Influence |
| 11 | Primitive Man | 2012 | Caustic (2017), Observance (2025) | Records |
One to three: the heaps that set the shape
First place goes to the New Orleans band that turned a tempo into a place. Formed on 20 April 1988 by guitarist Jimmy Bower and drummer Joey LaCaze, with Mike IX Williams soon replacing the first singer, Chris Hilliard, Eyehategod released In the Name of Suffering in 1990 and then Take as Needed for Pain through Century Media in 1993, the record Terrorizer placed first among all sludge albums, the one Chantler's list credits with raising the bar, and the one Rolling Stone ranked 92nd among the greatest metal albums ever made. Rolling Stone's list found room for four other bands in this ranking, but only Eyehategod's record also stood first in Terrorizer's. LaCaze died on 23 August 2013 and Williams had a liver transplant in December 2016, and still A History of Nomadic Behavior arrived on 12 March 2021.
Second is the trio from a Washington timber town that lit the furnace. Formed in Montesano in 1983 by Buzz Osborne, Matt Lukin and Mike Dillard, with Dale Crover on drums from 1984, the Melvins released Gluey Porch Treatments on Alchemy in 1987, which Metal Hammer's list says painfully birthed the entire sludge sound, and Bullhead on Boner in 1991, an album of longer songs than any the band had released before, which Rolling Stone placed 60th in 2017. On influence nothing comes near it. It stands second because the band spent Houdini, Stoner Witch and the three decades up to Tarantula Heart in 2024 wandering through every other room of a very large house.
Sludge is one room in the Melvins' house. For Eyehategod it is the whole building.
Third is the Oakland band that took the slag and built something taller out of it. Founded in December 1985 by Scott Kelly, Dave Edwardson and Jason Roeder, Neurosis released Souls at Zero through Alternative Tentacles on 19 May 1992 and reached Through Silver in Blood on Relapse on 2 April 1996, the record Metal Hammer's list hears sending sludge spiralling off into the stars, Rolling Stone placed 49th and Fact placed first among all post-metal records in 2015. That last reading holds it at third: everything after 1996 belongs to post-metal, the genre it did as much as anyone to found.
Four to six: Crowbar, Mastodon and Baroness
Fourth is the band that brought tonnage where Eyehategod brought squalor. Formed in New Orleans in 1990, with Kirk Windstein its one constant member, Crowbar released a self-titled album in 1993, produced by Phil Anselmo and carried onto Headbangers Ball, MTV's weekly metal show, by "All I Had (I Gave)", then Odd Fellows Rest in 1998, which AllMusic's Jason Ankeny heard as thick and slow as molasses. Zero and Below followed on 4 March 2022. Crowbar never had the reach of the Melvins. It had leaden weight, unbroken for thirty-six years.
Fifth is the Atlanta quartet whose four members stayed together for twenty-four years. Formed in 2000, Mastodon released Remission on Relapse on 28 May 2002 and Leviathan, built on Melville's Moby-Dick, in 2004, when Revolver, Kerrang! and Terrorizer all named it album of the year, and Rolling Stone later ranked it 46th. "Sultan's Curse", from Emperor of Sand, won Best Metal Performance at the Grammy Awards on 28 January 2018. The sludge lasted two albums. From Blood Mountain in 2006 the band is filed chiefly under progressive metal.
Sixth is the Savannah band whose singer paints its sleeves. Formed in the summer of 2003 by John Baizley, Tim Loose, Summer Welch and Allen Blickle, Baroness recorded early with Phillip Cope of Kylesa, released Red Album on Relapse on 4 September 2007, opening on "Rays on Pinion" and named album of the year by Revolver, and followed it on 13 October 2009 with Blue Record, carrying "A Horse Called Golgotha" and named record of the year by Decibel. The double album Yellow & Green entered the Billboard 200 at number 30 in July 2012, the highest debut in Relapse's history.
He and I cut our teeth on the Melvins, Jesus Lizard, Dinosaur Jr., Fugazi, and bands like that when we were impressionable little kids, and we've had that connection for almost 20 years now.
John Baizley on guitarist Pete Adams, interviewed by Casey Boland, Invisible Oranges, 12 November 2009
On 15 August 2012, during a European tour, the band's coach fell about nine metres from a viaduct near Bath, in England. Nine passengers were injured. Baizley broke his left arm and leg, and Blickle and bassist Matt Maggioni fractured vertebrae. The tour was cancelled, and on 25 March 2013 the band announced that both had left.
With Sebastian Thomson and Nick Jost in the band and its own label, Abraxan Hymns, behind it, Baroness released Purple in December 2015, whose "Shock Me" was nominated for a Grammy; Gold & Grey, which averaged 91 on Metacritic, on 14 June 2019, the first album with Gina Gleason, who had replaced Pete Adams on guitar in 2017; and the self-produced Stone on 15 September 2023, which Louder called "a monument to ambition and heaviness". It is the strongest run of albums on this page, and the reason Baroness stands no higher. By Gold & Grey the band was filed under progressive metal and rock, so its sludge claim rests on Red Album and Blue Record. A list weighted towards records counts those two. It cannot count the four after them.
Seven to eleven: short lives and late arrivals
Seventh is the Houma band with the shortest life and the longest shadow. Formed in 1991 around singer Dax Riggs and guitarist Sammy Duet, Acid Bath made only When the Kite String Pops for Rotten Records on 8 August 1994 and Paegan Terrorism Tactics on 12 November 1996, before bassist Audie Pitre died with his parents in a traffic collision on 23 January 1997 and the band ended. It announced a reunion on 15 October 2024.
Two albums in two years can put a band in the top ten. They cannot put it above a band that kept pouring for decades.
Eighth is the Baton Rouge band that dragged the squalor back into Louisiana. Formed in 2005 by Andy Gibbs, Matthew Thudium, Mitch Wells and Terry Gulino, with Bryan Funck on vocals from 2007, Thou released Heathen in 2014, Pitchfork's best metal album of that year, and Umbilical through Sacred Bones on 31 May 2024. It is the youngest band in the top eight and the likeliest to climb.
Ninth is the Savannah band that put two drummers behind the crawl. Founded in 2001 by Phillip Cope and Laura Pleasants, Kylesa added twin kits in 2006, released Static Tensions through Prosthetic in 2009 and Spiral Shadow through Season of Mist in October 2010, and stopped in 2016. Eight silent years cost it places. Its return was announced in August 2024.
Tenth is the North Carolina band whose stages were feared more than its studios. Formed in Salisbury in 1990 and led through every line-up by Kirk Fisher, Buzzov*en released To a Frown in March 1993 and Sore through Roadrunner in 1994, was dropped, split in 1999 and returned in 2010. Its shows were known for violence. A reputation made on stages cannot carry a band higher on this list.
Eleventh is the youngest band here, a Denver trio formed in February 2012 by Ethan Lee McCarthy, Jonathan Campos and Bennet Kennedy. Primitive Man released Caustic through Relapse in 2017 and Observance on 31 October 2025. Its heap is the newest, not the coolest.
Who is not on the list
Matt Pike's High on Fire, formed in Oakland in 1998, is claimed by sludge and stoner metal alike and is weighed with the stoner bands. Down, the band of Phil Anselmo, Kirk Windstein and Jimmy Bower, took NOLA into the Billboard 200 in 1995, but Revolver counted that record among its ten essential stoner metal albums in 2018. The Boston band Grief put Come to Grief on Metal Hammer's list and misses on the records count, since nothing else it made is argued over the same way. Two of the top four came out of a single city, whose own story is told under new Orleans.
We come back to the foundry yard. The furnaces that lit sludge went cold long ago and the pours that made money went to other genres, yet nearly forty years on the heaps at the top of this table still give off more heat than anything else in the yard. Nobody wanted the slag. It is what lasted.
