, 
KOMPILACE +
Harsh Supplement / Gello Nytlella / Dirty Harry (43) / Radiacion Suicyda
4 Way Split
2019, Cass, Rotova Porojnina Records, 
,
, Noisecore
Agathocles / Harsh Supplement
Agathocles / Harsh Supplement
2016, Cass, Num, Supplemental Records & Tapes, 
,
, Grindcore/Noise
Harsh Supplement / Energumeno
From Supplement... To Energumenation
2016, Cass, S/Sided, C46, R.O.N.F. Records, 
,
, Noise/Grindcore
Různí
Lazy Bastards Compilation
2016, Cass, Comp, C60, R.O.N.F. Records, ,
, Noise/Grindcore
Harsh Supplement / Napalmed
Split Tape
2015, Cass, Ltd, Num, C40, Rauha Turva, Septic Aroma Of Reeking Stench, 
,
, Noise/Industrial
The Karmakumulator* • Harsh Supplement
Karmakumulator, The • Harsh Supplement
2015, Cassette Split Tape • Black Cover Edition, 
,
, Noise/Grindcore
Harsh Supplement / Hades Mining Co.
Split 7" EP
2014, 7", EP, Ltd, CONTINUUM., 
,
, Grindcore/Noise
Topon Das / Harsh Supplement
Topon Das / Harsh Supplement
2014, Cass, Ltd, Num, Supplemental Records & Tapes, ,
, Noise/Grindcore
Harsh Supplement / Cacasonica
Harsh Supplement / Cacasonica
2013, 7", EP, Ltd, Canchis-Canchis Records, Supplemental Records & Tapes, ,
, Grindcore/Noise
Harsh Supplement / Horrible Mess
Harsh Supplement / Horrible Mess
2011, Cass, Ltd, Num, C10, USR Records, ,
, Noise/Grindcore
Disleksick / Harsh Supplement
Disleksick / Harsh Supplement
2010, Cass, Ltd, Num, Coffin Crawl Records, ,
, Grindcore/Noisecore
