The album features the band's typical sound of Neue Deutsche Härte[1] and industrial metal.

Backed by "powerful thumping guitar riffs", the lyrics demand religious leaders to "stop hiding behind their so-called Lord".

The ending verses suggest the child eventually sneaks into the sister's room, finds her being beaten to death and kills the attacker.

[3] "Was ich liebe" may be influenced by Nine Inch Nails' "Closer" and includes an acoustic guitar section similar to one from "Stairway to Heaven" by Led Zeppelin,[3] while "Diamant" is a soft ballad describing "a breakneck voyage through the multifaceted stages of romantic despair".

[3] "Weit weg" has elements of Tangerine Dream and Kosmischer Läufer and its lyrics describe a man secretly watching a woman undress through a window, and could be "an allegory for the way cam girls (or, sex workers more broadly) are put at risk from the blurred realities of some of their clients who believe their interactions to be more than they are".

The lyrics allude to the identification of inmates in German concentration camps while also discussing tattoos as a modern trend.

[3] The ending track "Hallomann" is about a child abuser who lures a girl into his car and drowns her later and features "thrumming bass, eerie synths, kick-your-back-door in riffs and a goosebump-inducing vocal".

[4] On that day, the song "Deutschland" was released as the album's lead single on digital platforms, and its 10-minute-long music video was uploaded onto YouTube.

[9] "Deutschland" was released physically as both a 7-inch vinyl and CD single on 12 April, with the remix acting as the B-side.

[11] The twenty-seconds video teaser with the album cover presentation featured shots of Kakhovska square in Ukrainian city of Kherson.

"[32] Kory Grow of Rolling Stone wrote, "In some ways, Rammstein have grown up in their decade of hibernation but mostly they have not.

The band had ascended in the anything-goes nu-metal Nineties, blending new-wave synths with air-tight heavy-metal guitar riffs and disco drumbeats... Over time, their sound became more polished and more rigid (and by proxy more Germanic?)

commented, "Rammstein's Untitled is believed by many to be the band's swan song, as each member's age hovers around 50.

On 15 April 2020, the album was certified 5× Gold by the Bundesverband Musikindustrie for sales of over 500,000 album-equivalent units in Germany.