Datalysium is the second studio album by the American technical death metal band The Zenith Passage. It was released via Metal Blade Records on July 21, 2023. It is the band's first release for Metal Blade, with whom they signed in December 2022. Commercially, it is the band's first album to chart; reaching No. 4 on the Billboard Top New Artists Albums Chart. The album is the band's first to feature vocalist Derek Rydquist, guitarist Christopher Beattie, and bassist Brandon Giffin.
In August 2021, two former members of The Faceless, Derek Rydquist and Brandon Giffin, joined the Zenith Passage, and the band released a new track titled "Algorithmic Salvation."
In December 2022, the band announced that they had signed with Metal Blade Records, and were in the process of writing two new releases, which would be produced by Dave Otero.
In April 2022, the band released the track "Synaptic Depravation" with an accompanying music video.
On May 15, 2023, the band announced the title of their upcoming LP, Datalysium and shared the album's album art and release date, July 21. The band also debuted the single "Lexicontagion," and released the album's track listing.
On June 14, 2023, the band released the single "Divinertia II" with an accompanying music video.
The title track along with an accompanying video were released on the day of the album's release, July 21.
The album was recorded partially at Justin McKinney's home studio, and partially at Derek Rydquist's apartment. Some of the album's vocals were tracked at Flatline Audio with Dave Otero who also handled mixing duties for the release. Ryan Williams provided production for some of the album's bass and vocals, and McKinney handled tracking duties.