It was formed in 2012 by drummer Erinç Sakarya and guitarist Hanno Klänhardt.

Mantar was formed in 2012[2] by two old friends, drummer Erinç Sakarya and guitarist Hanno Klänhard.

The duo released their debut studio album, Death by Burning, in 2014 on the Svart Records.

In 2020 band released cover album Grungetown Hooligans II via their own label Mantar Records.

In April 2022, the band announced their next album, Pain Is Forever and This Is the End, released on 15 July.