Akumajō Dracula X: Tsuioku no Yasōkyoku (悪魔城ドラキュラX：追憶の夜想曲? lit. Demon Castle Dracula X: Nocturne of Recollection) (unofficial translation, sometimes translated as Nocturne of Reminiscence) is a Japanese language only internet radio drama taking place shortly after the events of Castlevania: Symphony of the Night.
It was originally a feature on the Akumajō Dracula: Radio Chronicle program that was broadcast on Konami Station internet radio. It was released on CD on March of 2010.
- For additional artworks, please visit Nocturne of Recollection Artwork.
- Castlevania: Symphony of the Night — A direct prequel to this radio drama.
- Akumajō Dracula: Radio Chronicle — The program this was originally a feature of.
- Castlevania: The Adventure ReBirth & Contra ReBirth Original Soundtrack — Released the same day and available in preorder bundle.
- Akumajō Dracula Best Music Collections BOX — Released the same day and available in preorder bundle.