The Deficiency has had 8 concerts.

The Deficiency is most often considered to be Australian Metalcore and Melodic Thrash.

The last The Deficiency concert was on June 30, 2024 at Val de Moine Sport Complex in Clisson, Pays de la Loire, France. The bands that performed were: Foo Fighters / Queens of the Stone Age / Royal Blood / Nova Twins / Cosmic Psychos / The Offspring / Corey Taylor / Frank Carter & The Rattlesnakes / Simple Plan / Neck Deep / Hot Milk / Cock Sparrer / Madball / Show Me The Body / High Vis / Drug Church / Scowl / Gel / Sorcerer / Rival Sons / Crosses (†††) / Therapy? / Rendez-Vous / Dool / Heriot / I Am Morbid / Suffocation / The Black Dahlia Murder / Shadow of Intent / Caliban / Brand of Sacrifice / Destinity / The Deficiency / Dimmu Borgir / Tiamat / Batushka / Wiegedood / Blue Pills / COLD BLOOD / HIGH IN FIRE / Kerry King / Dust Lovers / Blues Pills / Ice-T & Body Count / Gaupa / Thron / Planet Of Zeus / Acid King.