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planetarian HD

"planetarian HD" is Key's Kinetic Novel: decades after the failed space colonization plan, scavengers enter a pre-war planetarium in a locked-down city, encounter the companion robot Yumemi Hoshino, who still works as a hospitality program, and attempt to repair the projection device. The Steam HD version was released in 2017, retaining a single-thread story format driven by text, images, music, and voice acting.

Basic information
DevelopmentVisualArts/Key
ReleaseVisualArts
ScriptLiangyuan Yuichi
MusicMagome Togoshi
VoiceJapanese

Story summary

After the war, the city almost lost human activity. A scavenger broke into the abandoned astronomical museum and was treated by Yumemi, who was still working, as the first guest in thirty years. Yumemi wants to project a starry sky for him, but the projector is already broken; The scavengers then began repairing the equipment.

Versions and language

The HD version was released on Steam in 2017. The current language list includes Chinese Simplified, Traditional Chinese, English, Japanese, German, French, and two Spanish texts. The official website categorizes the work as a Kinetic Novel, combining visuals, music, and voice acting to complement the narrative.

The planetariums in the city were sealed off

More than fifty years have passed since the world war triggered by the failure of cosmic exploration, humanity is nearly extinct, and the surface rain has never ceased. The Sealed City was abandoned thirty years ago after being attacked by bacteria. Scavengers known as "Scrap Houses" enter the dangerous lockdown city and discover a pre-war planetarium in the heart of the ruins. The robot still working there, Yumemi Hoshino, treats him as her first guest in thirty years.

Dream beauty and scavengers

Yumemi insisted on fulfilling her duties as a planetarium's receptionist, eager to show guests the starry sky, but the projection equipment was already damaged. At first, the scavenger couldn't understand her constant explanations, but in the end, he decided to repair the equipment. Their meeting begins with a service relationship, gradually reconnecting life among the ruins with the starry sky display.

Kinetic Novel narrative

Key classifies this work as a Kinetic Novel, positioning it as a narrative form aimed at storytelling, presenting the characters' situations through scripts, visuals, music, and voice acting. The focus of the work is on the time Yumemi and Scavenger spend together at the planetarium, rather than relying on route selection or combat systems as the core of the structure.

HD version released

This section corresponds to planetarian HD, which launched on Steam on May 8, 2017, and is developed and published by VisualArts/Key. The Steam version offers Chinese Simplified, Traditional Chinese, English, and other subtitles and interfaces, while retaining Japanese voice acting. The HD name and date of Steam merchandise refer to the digital release version, not the original release date. The script and design were handled by Yuichi Suzumoto, with music by Magome Togoshi.

Traditional melodies and new songs in the original soundtrack

KSLA-0025 original soundtrack includes twelve tracks, labeled and product page dated December 28, 2006. The digital track list lists the compositions of "Hoshi no Sekai ~Opening~" and "Jishimi Shinki" as Charles Crozat Converse, while the Honky Tonk, Metronome, Winter's tale, and the theme song versions of "Hoshi Meguri no Uta" are listed as composed by Kenji Miyazawa; "Ame to Robot," "Gentle Jena," "Zenki Hito," and the extended version of "Gentle Jena" are credited to Magome Togoshi, while "Human Warrior" is credited to Shinji Orito. According to the label, in addition to all the game's BGM, this disc includes a long version of the theme song sung by MELL, a new song by Orito, and a new arrangement by Togoshi.

The vocal adaptation of animated records

The anime adaptation "planetarian ~Hoshi no Hito~" for "Hoshi no Funa/Gentle Jena" (KSLA-0119), released on September 21, 2016. The theme song "Starry Boat" performed by Lia features lyrics by Toya Okano and music by Shinji Orito; Ayaka Kitazawa's song "Gentle Jena" features vocal background music, with lyrics by Ryo Mizukitsu and music composed by Magome Togoshi. The album also includes two instrumental tracks, with the official digital catalog showing October 5, 2024.

JUKEMATA distinguishes between game and animation assets

"JUKEMATA" with separate titles "Song of Star Circle" comes from "planetarian ~Chiisanahoshi no Yume~", lyrics and composition by Kenji Miyazawa, arrangement by Shoji Morifuji, performed by MELL; "Snow Globe" and "Star trip" are from the anime "Snow Globe," arranged by Hideaki Kuroda and Hisashi Amakyū, with vocals by Riko Azukina and Saka Sasaki. "Star trip" also features odasis guitar performances. "Star Boat" is based on the movie "Star Person," arranged by Akki, performed by Lia, with backing vocals by Yukina. All four songs are recorded on this adaptation disc, with each material version retained.

Starry sky commentary after the power outage

After the projector was repaired, Yumemi finally held a starry sky show, but the planetarium ran out of power en route. The shavinghouse asked her to continue explaining, imagining the starry sky in the dark. After the performance, the food-scarce Hut prepared to leave the city; The museum could no longer recharge Yumei, so he eventually took her with him and left.

The exit battles and memories are entrusted

The battle machine Shiomaneki sealing the city's exit blocked the way. The shabby house faces a crisis alone. Yumemi steps forward to try to stop the machine from attacking humans but suffers heavy damage; Taking advantage of the situation, the shavinghouse destroys the machine. Yumemi shares memories of when she once hosted audiences and colleagues leaving, while the shawu tells her there are still new jobs and people waiting for her outside the city. She hoped that humans and robots could coexist in the same heavenly realm, and then ceased operations. The shavinghouse walked out of the city with her memory card.

The original theme of Snow Globe and its subsequent adaptations

The original theme of the OVA "Snow Globe," "Snow Globe," is performed by Riko Azukina, with lyrics by Toya Okano, composed by Shinji Orito, and arranged by Shinpei Nasuno. The named holder, Meta Place, listed it as Track 14 of the attached CD in its physical report on January 23, 2021; Following that were Yumemi's version of "Twinkle Starlight," Sasaki Saka's "Star Trip," and the constellation commentary "Hoshi Yokuro." In 2022, "JUKEMATA" also included "Snow Globe," arranged by Hideaki Kuroda.

2016 PC HD Edition set

Key released the PC version of "planetarian HD Edition" on July 29, 2016. The set includes an art booklet and three radio drama CDs: 'Snowsphere Ball,' 'Jerusalem,' and 'Star Man'; These radio dramas are standalone audio content included in a set.

2016 animated text and starry sky

Animation producer Hiroyuki Aoi explained that the original game's local atmosphere and world shifted to art, cinematography, and character expression. They also commissioned AstroArts materials suitable for theatrical screens based on the starry sky of a specific period.

2016 Animation Composition Collaboration and Perspective

Orito invited Donmaru and Tomohiro Takeshita to collaborate on the play, and then exchanged ideas with Tsuda for each piece. The streaming version of the music revolves around Yumemi, while the movie version reflects the mood of the Xiake House, changing the placement of the songs and the visual editing.

Related entries

References

Data compiled on: 2026-10-07.

本版编辑：免费机器翻译 · 2026-10-18

内容许可：CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/

本译文依据的源修订