Alternatives to the Mr Black Mr. Black SludgeMaster

Fuzzrocious 420 Fuzz V2

Shared character: volume, fuzz, sustain

Greer Tarpit

Shared character: fuzz, thickness, metal

Electro-Harmonix Big Muff Pi

Shared character: volume, fuzz, thickness

Bixonic Expandora

Shared character: single_coils, fuzz, thickness

Pigtronix Gas Giant

Shared character: fuzz, thickness, sustain

Electro-Harmonix Green Russian Big Muff

Shared character: volume, fuzz, thickness

Keeley Moon

Shared character: volume, fuzz, thickness

EarthQuaker Devices Barrows Fuzz

Shared character: fuzz, thickness, sustain

Black Arts Toneworks LSTR Fuzz

Shared character: single_coils, fuzz, metal

EarthQuaker Devices Barrows V1

similar tone character

EarthQuaker Devices Hizumitas

similar tone character

EarthQuaker Devices EarthQuacker Devices "Acapulco Gold Limited V2

similar tone character

EarthQuaker Devices Barrows Fuzz Attacker

similar tone character

Menatone None More Black

similar tone character

Death By Audio Fuzz War

similar tone character

TC Electronic Fangs Metal Distortion

similar tone character

Black Arts Toneworks Destroyer V2

similar tone character

DOD Chthonic Fuzz

similar tone character

ProCo RAT 2

similar tone character

Fuzzrocious Dark Driving

similar tone character

EarthQuaker Devices Acapulco Gold

similar tone character

Fjord Fuzz Berserk

similar tone character

JHS Pedals JHS Muffuletta

similar tone character

EarthQuaker Devices Gary V1 Fuzz

similar tone character