Nelke & the Legendary Alchemists was developed by the Kyoto Development Department of
Gust. The concept was created by co-producers Keisuke Kikuchi and Junzo Hosoi, who were working out concepts to celebrate the series' anniversary following the release of
Atelier Lydie & Suelle in 2017. Among the concepts raised were a
party game and a "love simulation" title. The concept they settled on was a city building design that would have
Atelier protagonists from across the series with a standalone protagonist. The game was directed by Hiroshi Kataoka, and the design team was led by Azusa Takahashi. In contrast to the growing RPG focus of the main series,
Nelke & the Legendary Alchemists was designed to return to the simulation style of the first
Atelier games. Based on this gameplay concept, the team created the weekday and weekend structure, with an emphasis on social interaction and automated exploration similar to the
Salburg trilogy. Hosoi and series creator Shinichi Yoshiike did not describe the game as a spin-off, with the aim being to create a potential alternative gameplay style for the series as a whole. The world design was created by Akira Tsuchiya, who had worked on the scenarios of early
Atelier titles. The scenario and script were written by Tetsu Shirakawa. It was decided from the outset that the lead Nelke would not be an alchemist, which helped inform the gameplay and world. Despite this change, the theme of a young girl achieving her dreams was kept through Nelke's custodianship of the village. The idea of characters being drawn in from alternate dimensions allowed the team to unify some of the disparate tones and designs, as different
Atelier subseries had sometimes starkly different artistic and tonal styles. A common underlying theme was kindness, demonstrated by the alchemists pitching in to help Nelke grow her town. While the game featured cameos from alchemist characters across the series with their own episodic interactions, they were not intended to have starring roles. The characters were designed by Noco, an artist who had collaborated on the character design of the
Mysterious series. When she was offered the role of sole character artist, Noco was initially shocked and thought it was a joke. Nelke was created around the concept of an aristocrat, with her standing out while not being an alchemist. Noco created twelve different drafts of Nelke, designing a thirteenth at Hosoi's insistence. Due to not being an alchemist, Nelke's design had fewer restrictions for Noco, who had fun with the design and added "sparkle" to emphasise her aristocratic background. Nelke's blue hair was chosen so it did not overlap with other
Atelier protagonists. The animated opening was created by LandQ Studios, who had worked on other mainline entries.
Music The music of
Nelke & the Legendary Alchemists was co-composed by Kazuki Yanagawa, Daisuke Achiwa, Ken Nakagawa, and Tatsuya Yano. All were series veterans; Achiwa had composed since the beginning of the series, Yanagawa had first composed for the
Arland series, Nakagawa had been a composer since the
Gramnad series, and Yano had co-composed for the
Mysterious series. Yanagawa described the soundtrack as inspired by and based around Nelke as a character. The soundtrack included a lot of older track arrangements, with the priority being to make them work within the game's world rather than radically changing them. The opening theme "Alchemia" was composed by Achiwa and performed by Nakae Mitsuki. Achiwa described the song as a "festival-like theme". The title was chosen based on the game's status as a celebratory title, being a direct thematic reference considered unsuitable for the main series. The chorus incorporated words referencing all nineteen
Atelier titles up to that point, with Achiwa having trouble incorporating references to the earlier
Salburg and
Gramnad titles. The ending theme "Birth" was written and composed by Yanagawa, and sung by
Haruka Shimotsuki. Yanagawa created the theme without the need to emphasise the series' anniversary, which was being done with the opening theme. Shimotsuki had sung for several earlier
Atelier titles, and described the song as initially simple but having a number of cord and key changes. A soundtrack album for the game was released on March 26, 2019 ==Release==