planetarian HD

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98%Steam Reviews3.2K reviews

Released: May 7, 2017

Visual Novel · Anime · Casual · Adventure · Robots

Steam·Platform:·United States Steam official price~ $9.99Buy now

All-time low ~ $2.99across Steam & third-party stores

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Price History

Past 36 months · Updated daily

Historical Low~ $2.992023-08Current Low Across Stores~ $9.99Steamvs. Historical Low+234%

Prices cover Steam and 39 authorized stores; only legitimate offers are counted. The chart shows weekly market-wide lows and Steam's official price across the past 36 months.

01About planetarian HD

In a rain-soaked future, a junker enters a ruined city and finds a planetarium with Yumemi, a companion robot who has waited decades for a visitor. Its projector no longer works, and he agrees to try to repair it. planetarian HD presents this encounter as a Kinetic Novel, using text, illustrations and music to tell its story. The Steam PC version has 98% positive player reviews out of 3,244. It was released on May 7, 2017.

Credits

Developer

VisualArts/Key

Publisher

VisualArts

Steam player reviews

98%positiveOverwhelmingly Positive3,244 Steam reviews

Lowest recorded in 36 months

$2.992023-08-12 · SteamBase game · same records as the chart above; USD history, not a regional Steam low.

Language support

Language	Interface	Subtitles	Audio
Simplified Chinese	Yes	Yes	—
Traditional Chinese	Yes	Yes	—
English	Yes	Yes	—

Show 5 more languages

Language	Interface	Subtitles	Audio
Japanese	Yes	Yes	Yes
German	Yes	Yes	—
French	Yes	Yes	—
Spanish	Yes	Yes	—
Spanish-Latin America	Yes	Yes	—

Steam PC edition data · 2026-11-03

02Before you buy

Language

Japanese voice acting is included, with English and Japanese text among the listed interface languages.

Play mode

The Steam PC version lists single-player support.

03Frequently asked questions

What is the story about?

A junker finds Yumemi, a companion robot, in a planetarium in a ruined city. She has waited decades for a visitor.

What drives the plot?

The planetarium projector is broken, so the junker agrees to try to repair it before a show can begin.

What kind of game is it?

It is described as a Kinetic Novel, a story-focused form of entertainment.

Popular Steam reviews

Native-language selection · 10 reviews

Selected helpful reviews in this language show both recommendations and criticisms. This selection does not represent the overall positive rating; opinions reflect the version reviewed.

RecommendedSteam player

05/14/2017

This is the high-definition(HD) version of the kinetic visual novel Planetarian ~Chiisana Hoshi No Yume~ (Planetarian ～ちいさなほしのゆめ～) with Chinese interface and subtitles as Planetarian ～小的星之梦～. Sprites for the main character Hoshino Yumemi are now sharper and clearer with hardly any grainy textures, the game's achievements now have nice background pictures or portraits of Hoshino instead of a single picture across all achievements and the game has trading cards now. Game is still as beautiful and unforgettable as the earlier non-HD version. I would nominate this game for the same I'm not crying, there's something in my eye award if there is another similar Steam nomination event this year for 2017. On the minus side, given that the game only has Chinese interface and subtitles at the moment and the game has a 20% discount at the time of this review, even for those who have owned the non-HD version and the game doesn't seem to be available in any bundle offer yet, the price of this kinetic visual novel might be a bit high as it takes less than 10 hours to read through the entire visual novel, unlock all CGs and background music and get all achievements. Overall, this game is recommended for those who are able to read Chinese (or at some point later in the future when Visual Arts and Key release additional language support in future updates as announced in their Twitter page), for Visual Arts and Key or Planetarian fans who are interested in collecting the game or the game's trading cards, badges, emoticons and profile backgrounds or for those who want an easy kinetic visual novel to get all achievements. My review for the non-HD version of Planetarian is below: http://steamcommunity.com/profiles/76561198006413390/recommended/316720/Show moreShow less

0.4 hours at review110 people found this helpful

Not recommendedSteam player

04/10/2019

I really could not, in my full conscience, recommend this game to anyone. The VN is incredulously short, and if you are a fast VN reader like me (for reference, 33h for full clear in Chaos;Child, 7h in eden*, 24h for full clear in Steins;Gate (no DLC), and 11h for full clear in Deliver Me), it'll be over in less than 2 hours -- less time than you would need to even get basic understanding to a story character, let alone becoming emotionally invested in them -- in fact, it is barely longer than a movie and shorter than any animated series. There are no replayable elements, though understandable due to the shortness and low character count. The story is cliched and filled with plotholes. No part of the postapocalyptic world-building make any sense if you think about it for longer than 10 seconds (ie Acid rains somehow not affecting pre-apocalypse robots, service robots or war mechs; the non-stop acid rain itself; and the fact that the protag, someone with zero knowledge of prewar machinery, managed to fix a 30-year old, intricate planetarium projector in 2 days). Worse yet, the plot is so simplistic and twist-less that I predicted every single direction the VN decided to take. This game is, despite its remaster, written in 2004 and did not undergo any adjustments. As such, it is outdated, archaic and most importantly, plaid, in numerous ways and I do not think it deserves the reviews it is getting.Show moreShow less

1.7 hours at review23 people found this helpful

RecommendedSteam player

07/01/2023

3 hours to finish, 3 months to recoverShow moreShow less

3 hours at review84 people found this helpful

Not recommendedSteam player

06/19/2018

Long and boring......Show moreShow less

3.4 hours at review19 people found this helpful

RecommendedSteam player

05/22/2017

The 3-5 hour story takes place in a post-apocalyptic future and is told from the perspective of an unnamed Junker — a salvager who searches cities abandoned by war and plagued by perpetual acid rain for any trash that could be redeemed as treasure. The eerie silence of his seemingly eventless trip to the war-torn site of an abandoned planetarium is broken by the cheerful voice of a young woman greeting him as the 2,500,000th visitor. What is another person doing here? This doesn't feel right at all. So, with a grenade launcher ♥♥♥♥♥♥ and loaded, he encounters Yumemi Hoshino — a chatty robot employee of the planetarium who's miraculously still functional but "a few fries short of a Happy Meal." At first, Yumemi's overly friendly nature and almost saccharine optimism annoy the Junker to no end, but her effervescence eventually grows on him. Unlike many visual novels, which read like Choose Your Own Adventure books with branching pathways, Planetarian reads like a straight up "light novel" (Japanese novels with illustrations- somewhere between a manga and a full-on novel). Basically, all you do in this "game" is read words, look at the pretty pictures of anime characters atop dreary environments, and listen to the voices and background music. There are no choices to make, no branching pathways to explore, and only one ending. Speaking of light novels and voices, Planetarian spawned a light novel featuring four short stories and some audio drama CDs, so the storyline extends beyond the main game. Music and voices are the only reasons to have Planetarian in a game format vs a print format. The evocative soundtrack has some lovely music, and my favorite pieces exhibit a shimmery quality. As far as the voices go, Yumemi's voice is suitably vibrant and Junker's voice is suitably disparaging. Planetarian is not a bad game, but it does not tug the heartstrings quite like Freebird Games' To The Moon or hit the emotional notes of Key's other games like Kanon, Air, or Clannad. Planetarian's story is all too brief, and the game's interactivity is nonexistent. I would only recommend it to the most ardent fans of Key, and even then I would say to wait for Clannad's localization instead. Pros: +Enjoyable story. +Soothing Soundtrack +Good CG artwork Cons -No gameplay. -One Ending with no branching route to select -Only Chinese Language for this HD remake -MY THOUGHT- There's something truly memorizing about the idea of a post apocalyptic world. Perhaps its the perpetual loneliness of a race on the brink of extinction or how survivors struggle to cope with reality by clinging onto past memories. Whatever the case, Planetarian embodies my favorite scenario in anime by telling a tragic tale between the most unlikely of companions in a world that has left them behind. The story revolves around a hard nosed militaristic man and an adorable AI unit named Yumemi who functions as a tour guide of a Planetarium . She has zero awareness of the world on the verge of collapse around her, and is simply happy to have her first visitor in over thirty years. These two could not be anymore different as entities, but together they find brief solace as the only inhabitants in what may be the last peaceful refuge on the planet. Conclusion: Planetarian ~the reverie of a little planet~ is a visual novel that fans of the genre should be required to play if they missed out on it previously. Once you know what you’re getting into with kinetic novels, it’s easier to simply sit back and let the storyline work its magic. Once the game is over it’ll stick with you, too, which is still a surprisingly rare and impressive experience to get with games.Show moreShow less

6.4 hours at review67 people found this helpful

Not recommendedSteam player

04/12/2024

Info: To access the game's settings menu, right click inside the game and select "Configuration". This will allow you to do things, such as, make the game fullscreen, as well as change volume levels for voice, music, sfx, etc Review contains NO spoilers. Overview planetarian HD shows us a Visual Novel's take on a concept often found within science fiction - that of robots which have been manufactured and programmed for the fulfilment of specific human needs, and who dutifully (and eerily) continue to try to fulfil them, even long after the humans who had those needs vanished from the picture. In our case, our nameless protagonist finds himself in the aftermath of an apocalyptic war, and among the rubble of a destroyed city, meets a robot girl named "Yumemi" who had been tasked in the pre-war days to be one of the maintainers of a planetarium, and who even after the bombs fell, continued to be at the ready to greet and entertain any of the planetarium's nonexistent customers for over 30 years after the outbreak of the war, when the people had left the city. The good... Initially, the story starts off with good writing, and tells the tale of how our protagonist gets accustomed with the strange robot woman, focusing on the interactions between them for most of the story. Something I find worthy of praise here is that the writers wrote Yumemi's personality as that of an actual robot, in that she often doesn't understand basic things which would be obvious from context for humans - such as the fact that customers won't be coming to the planetarium in a post-apocalyptic wasteland that the city now is. It would have been easy to fall into a sort of trap which I have seen a number of times before, which is to write her to behave more like a human in a robot's body, rather than the robot she actually is.... And while there some issues - such as are a few instances (of which I counted at least 3) in which the protagonist's reasons for his actions aren't well explained (though they can be explained plausibly if one tries), and the realistic robotic personality of Yumemi making it hard to develop a bond with her - I would consider the first half of the story to be "alright". At this point, I would have recommended it for those people who are particularly interested in this sort of story, but not for a general audience. The bad... However, the halfway point is where things were starting to take a turn for the worse in my opinion... After this point, the game spends about a third of the length of the story in a way where all that happens is that our protagonist continues to have the same sorts of conversations with Yumemi which he had been having in the first half, only this time without achieving much of anything in the process. As a result, the story started to feel slow and drawn out beyond this point, which even extends into the ending. I found the ending sequence itself to be much longer than it needed to be - it almost felt as if the story was proceeding in slow motion at that point, as it continued for another whole chapter past the point where the ending itself could already be inferred from the information presented... And it wasn't telling us anything all that new either, as many things which the story tells us about here had already been mentioned before, just in somewhat less detail... TL;DR: Considering that the writing was never exceptional to begin with, and taking into account how unnecessarily drawn out the second half of the story feels, I cannot give a recommendation for this game.Show moreShow less

6.2 hours at review5 people found this helpful

Source: original Steam user reviews. Helpful votes are an archived snapshot, not live data. Last collected: 08/15/2026.