The music for the Drakengard series, known as Drag-On Dragoon (ドラッグ オン ドラグーン, Doraggu on doragūn, commonly abbreviated as DOD) in Japan, has been handled by multiple composers since the release of the original game in 2004.

In creating the score, they sampled excerpts from pieces of classical music (selected by Aihara), then rearranged, remixed and layered them in various ways.

Their main objective was to create music that emulated the game's hack-and-slash gameplay, as well as the dark story and general narrative theme of "madness".

[3] The theme song, "Exhausted" (尽きる, Tsukiru), was composed by Sano, written by the game's scenario writer Sawako Natori and sung by Eriko Hatsune.

[4] Drakengard 2's soundtrack was composed by Ryoki Matsumoto and Aoi Yoshiki, with supervision by Sano, who acted as sound director.

[5] The soundtrack was designed a fusion of J-pop and video game music, and to evoke the emotions of the various characters and the feeling of battle.

[14] One musical piece, "Exhausted 3", is a re-orchestration of Drakengard's theme song, intended by Okabe as a nod to earlier installments while staying true to Yoko's wishes.

The reviewer for RPGFan was weakly positive about the first album, calling it "extremely experimental" and stating that people needed to be open-minded while listening, while also citing it as better than the soundtrack for Xenosaga Episode I: Der Wille zur Macht.

[20][21][22] Reviewing the re-release, Jayson Napolitano of Original Sound Version called it "one of the most experimental and disturbing soundtracks I've heard in a while".

He praised the soundtrack despite not finding it memorable, and commented that he found it more appealing when he knew some of the plot details that were censored in the game's western release.

[25] IGN's Jeremy Dunham was both impressed by the atmosphere of the tracks and critical of multiple instances of grueling repetition, summing the music up as "disappointing".

[27] It contains the tracks used during gameplay and not those used during cutscenes, but does include the game's theme song, "Hitori", which was also released as a separate single.

Chris Greening of Game Music Online praised the shift to a more classical style and the general intensity of multiple tracks, ending the review by applauding Yoshiki's hard work.

[6][28] Game-OST's Simon Smith also praised it, calling the soundtrack "a complete attack on the senses as an entire orchestra and full sized choir rampage as much power and tension on you as possible.

IGN's Ed Lewis called the music "appropriately dramatic", though stated it was often drowned out by the ambient noise and voice acting.

[30] GameSpot's Greg Mueller called the music "varied and interesting", while stating that the vocal theme was "sappy, but it's used sparingly enough, so it doesn't get terribly annoying".

[34] RPGFan's Patrick Gann was generally positive, although he had little commentary on individual tracks, and recommended the album to people who had enjoyed the soundtrack of Nier.

USGamer's Kat Bailey was fairly positive about it despite not finding it very memorable, calling it "aggressively anime, mixing piano riffs with the odd bit of J-Pop for emphasis".

[40][41] The compilation was exclusively released as part of the Drag-On Dragoon 10th Anniversary Box, featuring a copy of Drakengard 3 and multiple books and artwork relating to the series.

[44] The song, originally released as part of Nakashima's third album Music, was based on a previous composition for Star Ocean: The Second Story.

In his review of the soundtrack, Game-OST's Simon Smith called it "a soft jazz song with sultry smooth vocals and a nice tune", and praised it despite it not becoming one of his favorites.

"[6] Chris Greening of Game Music Online called it "a strong rival to every single pop ballad released from Square Enix, proving rich yet accessible.

[15][48] Aoi, a singer native to Hokkaido, was chosen by Okabe to perform the song due to her outspoken admiration of the Drakengard series.

Okabe asked Chihiro to help with the song because he felt she would be the perfect singer to project the world and themes of Drakengard 3.

[57] Huynh was positive about the song in his review of the soundtrack, saying that Chihiro "[brought] her best, delivering an emotional track with a powerful buildup to a dizzying climax.