They recorded their first demo, Promo '07, at 16th Cellar Studio, in Rome, with producer Stefano "Saul" Morabito, releasing it shortly after.

The demo was re-released the following year on a split CD with fellow Italian bands Septycal Gorge, Modus Delicti and Onirik.

In November 2010, the band signed a worldwide deal with record label Extreme Management Group, Inc. and began writing for the second full-length album.

Fleshgod Apocalypse took part in the 2011 Summer Slaughter Tour in North America, alongside co-headliners Whitechapel and The Black Dahlia Murder.

During March 2012, Fleshgod Apocalypse toured South Africa, supported by local death metal acts.

It features guest contributions, and is a concept album about the myth of Labyrinth of Knossos and its analogies to modern times.

The album continued and expanded on the style they had honed with King,[10] and was accompanied by the release of two music videos directed by Giovanni Bucci for the songs "Sugar" and "Monnalisa".

[14] Fleshgod Apocalypse was supposed to do another round of American shows with The Agonist in 2020, but this tour was for the most part cancelled due to the COVID-19 pandemic.

The band has resorted to streaming on YouTube to host Q&A sessions with fans, as well as livestreaming a virtual concert at Bloom Studio in Rome in August.

[15] A video for an acoustic version of "The Day We'll Be Gone" was released on 23 October 2020, whereupon it was announced that soprano Veronica Bordacchini, guitarist Fabio Bartoletti and drummer Eugene Ryabchenko had officially joined the band.