In time for the 10th anniversary since its original release in Japan, planetarian is an engaging and emotional visual novel from legendary game studio, Key. A sub-brand of VisualArt's, Key are also famed for creating Kanon, AIR, CLANNAD, Little Busters!, Rewrite, and Angel Beats!
User reviews: Very Positive (197 reviews)
Release Date: Nov 29, 2004

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Recommended By Curators

"A short-ish kinetic novel (no choices) with a great soundtrack. Has a really beautiful story. I might have cried a single tear when I played it maybe..."

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September 17

Japanese version also available!

The original Japanese version of the game is now available, you can switch to it by right clicking on the game and then selecting Properties. Under Properties, you will find the Language tab which can be used to switch to Japanese.

Keep in mind that both the English and Japanese versions of planetarian utilize the same save data folder so please delete all files within the SAVEDATA folder before switching languages.

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Update Notes

Please Note: Users who installed the Japanese-language version of planetarian can switch to English by going to the Library, right clicking on the game and then selecting Properties. Under Properties, you will find the Language tab which can be used to switch to English.
*Keep in mind that both the English and Japanese versions of planetarian utilize the same save data folder so please delete all files within the SAVEDATA folder before switching languages.

About This Game

Why don't you come to the planetarium?
The beautiful twinkling of eternity that will never fade, no matter what.
All the stars in the sky are waiting for you.


In time for the 10th anniversary since its original release in Japan, planetarian is an engaging and emotional visual novel from legendary game studio, Key. A sub-brand of VisualArt's, Key are also famed for creating Kanon, AIR, CLANNAD, Little Busters!, Rewrite, and Angel Beats!

Please do not divide Heaven in two...

It is thirty years after the failure of the Space Colonization Program.
Humanity is nearly extinct. A perpetual and deadly Rain falls on the Earth.
Men known as "Junkers" plunder goods and artifacts from the ruins of civilization.
One such Junker sneaks alone into the most dangerous of all ruins -- a "Sarcophagus City".
In the center of this dead city, he discovers a pre-War planetarium.
And as he enters he is greeted by Hoshino Yumemi, a companion robot.
Without a single shred of doubt, she assumes he is the first customer she's had in 30 years.
She attempts to show him the stars at once, but the planetarium projector is broken.
Unable to make heads or tails of her conversation, he ends up agreeing to try and repair the projector ...

For the first time, this heartwarming and memorable title is available on Steam!
It is fully voiced in Japanese, and can be experienced with both English and Japanese text.

Design, Scenario: Yuuichi Suzumoto
Music: Magome Togoshi
Voice Cast: Hoshino Yumemi - Keiko Suzuki
The Junker - Daisuke Ono

* This product is a localization of "planetarian ~chiisana hoshi no yume~ Memorial Edition", originally released for Windows on 30 April 2010.

What is Kinetic Novel?
A new form of entertainment for the sole purpose of storytelling -- not a novel, not an anime, not a game -- Kinetic Novel.
Made with the goal of providing the reader with an unprecedented sense of presence and empathy for the characters through the use of a high-quality scenario, graphics, music, and other production values.

System Requirements

    Minimum:
    • OS: Vista or higher
    • Processor: 1.2 GHz Pentium 4
    • Memory: 128 MB RAM
    • Graphics: 800x600
    • Hard Drive: 500 MB available space
Helpful customer reviews
28 of 30 people (93%) found this review helpful
6.9 hrs on record
Posted: October 30
ENGLISH/АНГЛИЙСКИЙ:
Remember one thing: if you see a KEY's novella on Steam buy it without thinking. I promise you, you will not regret. All of KEY's novels are a masterpieces.
РУССКИЙ/RUSSIAN:
Запомните одну вещь: если видите визуальную новеллу KEY в Steam купите не раздумывая. Обещаю вам, вы не пожалеете. Все ВН KEY - шедевры.
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22 of 24 people (92%) found this review helpful
20.6 hrs on record
Posted: October 27
So, this is another key's sadness visual novel, I have played Clannad and watched Clannad, Air, Kanon, and many key's animes. This time key brings us a sadness but thoughtful story with a robot girl whose name is Hoshino Yomemi, which means the beautiful dream of the stars. I have read the whole Planetarian novels after played this game, so that I know the whole world of this novel series.Yomemi is a lovely girl, I DON'T think she is a ROBOT, but a HUMAN with all the beauties and she stands for the brightness of humanity. She is innocent and just like a child. Human destoried everything but she still believed that everything will become fine one day. I think the precious memories of Yomemi are the most moved part of this novel and I cried for nearly 2 hours after I watched that part. After played this game, I thought a long time, why human beings began to kill each other? Maybe they lost their emotions like love and mercy. After all, all these loves and mercies are given to Yomemi and she became the hope of human maybe. Though her body dead in the end, but her spirit was taken by us. By the way, the next novel called Man of Stars(maybe, I read this story in Chinese), in that story, our main character became a old man and show other people the beauty of stars, just like what Yomemi was done to him, and finally in a small village in South America, he dead with another robot which the same type of Yomemi, in that time, the South America was covered with ice and people could hardly survive. In that village, our main character teached 3 children many things of stars, knowledges, and some past stories. It's a sad end. Human couldn't avoid disappearing from this planet, but our spirit, our love, the dream of heaven, the heaven that won't be seperated, the hope, won't disappear.Actually, I think this game worth this price, in my opinion, it's even more worth than 60$, it makes us to thought what's the true love, what's the humanity, and I think it's even more thoughtful than some text book.
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15 of 15 people (100%) found this review helpful
3.3 hrs on record
Posted: November 14
Deep inside the old sarcophagus city, while searching for food, weapons, or resellable scraps, you make an unlikely discovery: What you'd assumed to be an abandoned military facility is actually a pre-war planetarium. And as it turns out, the custodian robot is still welcoming customers after all these years.

Let's talk about planetarian ~the reverie of a little planet~.

It's a kinetic novel (a visual novel without any choices or other interactive game elements), so the only thing that the player/reader controls is the pace of the story. Do what you will with that information.

Originally developed by Key in 2004 and recently published on Steam by Sekai Project, this is widely considered a classic in the VN community, and a very worthwhile addition to the still sparse selection of good visual novels on Steam. It's a short story about a world full of desolation, hopelessness, cynicism and resignation, and about a little robot girl who's immune to all of it. It's also about going stargazing in a world without stars.

The backgrounds and character sprites in planetarian are somewhat sparse in direct comparison to some of the more visually bombastic VNs out there. It is however very evocative, and with that it falls in line with the writing. The whole novel follows a slow pace -- never dragged out, but certainly deliberate. It leaves plenty of time for you and your own thoughts, and I urge you to take advantage of this invitation. I ended up with just over three hours of total playtime, which included some breathing room for the fantastic voice acting.

Any good visual novel swings in tune with its soundtrack, and planetarian is no exception. Opening with the music box lullaby "The World of the Stars" it immediately offers you a glimpse of its gentle mood. Tracks like "Song of Starflight" accentuate the day-to-day interactions of the main characters with a lax and childish air, while the perhaps most iconic song of the roster, "Gentle Jena", cushions some of the more tender scenes in an aura of warmth and belonging (and I would encourage you to keep that last one playing in the background while you read the rest of this review).

Visual novels as a medium don't lend themselves especially well to twitchy action stories, and despite the occasional surprise in that regard, the bulk of planetarian is about its characters and their interactions. Of the two main characters, only one actually appears on screen, and it would be a fair assessment to say that the story is about her, in several ways.

Yumemi (translated as "Reverie" in some localizations) is not the kind of quasi-human A.I. that we're used to from the likes of Cortana or EDI. She is a robot programmed for a very straightforward purpose. She oscillates between toddler-like naiveté at best, and robotic-algorithmic behavior at worst. So why do you entertain her thoughts of repairing the old projector? Why do you, a looter perpetually on the verge of starvation, end up tacking another night onto your stay at the old planetarium?

This story isn't about what Yumemi is, but about what she represents.

Spending valuable time and energy on a planetarium of all things should feel frivolous, yes, downright sacrilegious. But there is something peculiar inside you, easy to explain away as idle curiosity about the starry night sky that you only know from old people's stories. Something you probably didn't think you still had. They say there was a time before the war, before the planet was shrouded by a thick layer of acid clouds, when people were able to look at the stars whenever they wanted. When there was still a notion of mankind eventually travelling to, and settling on, foreign worlds.

Back when people still had hope for the future.

Yumemi was left behind at the beginning of the war, and despite not having had any sort of human contact in years, she diligently awaits the day's customers. There's only one thing she wants out of this existence, one thing she wants to do more than anything else in the world: to show you the stars.

The little robot girl, once built for the simple goal of caring for the planetarium's customers, ends up fulfilling a much grander purpose. Tucked away in her own little corner of a gray world inhabited by people who have forgotten what it means to be human, Yumemi is a shining beacon, a time capsule, a reminder that there is a star-filled sky right behind the acid clouds. Yumemi is the child, the lamb. She embodies innocence, childlike wonder, relentless optimism. Looking into her eyes, you cannot help but feel deeply ashamed for what the world has become.

What was it, then, that made you stay at the planetarium? Was it really just idle curiosity? Or is there more to this little thought in the back of your head after all? Do you feel in your stomach what the place emanates? Does Yumemi give you the strength to dare to form the words, that maybe, just maybe... there is some hope left in this world? That there is such a thing as "the future"?

You should read planetarian if you have any interest in visual novels, if you haven't experienced a good story in a while, if you like looking up at the stars and wondering what the future holds, or if that little spark deep inside you that is almost drowned by cynicism needs a little bit of nourishment. Wholeheartedly recommended.
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8 of 9 people (89%) found this review helpful
5.4 hrs on record
Posted: October 28
Never in my life had I tried a visual novel, heck I didn't even know such a thing existed, being the adventurist guy that I am I said "eh why not give it a shot??, YOLO!!". Well one thing is for sure, that ending will definately put your manliness to the test. Great story. you can click away at your pace or just leave it in auto mode kick back and relax.
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8 of 9 people (89%) found this review helpful
5.3 hrs on record
Posted: November 3
I bought this pretty much only knowing it was created by Key. No regrets.
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8 of 9 people (89%) found this review helpful
3.2 hrs on record
Posted: October 26
;_;
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6 of 7 people (86%) found this review helpful
4.9 hrs on record
Posted: November 9
I cry every time. Tears flooded my whole house. ;-;
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9 of 13 people (69%) found this review helpful
3.1 hrs on record
Posted: October 27
I cri evryteim so sad Key never disappoint me i cri 3 times while reading this story its so touching I pray that the heaven between human and robot will not be seperated :D

The game is fully supported with japanese voice which can make u cri the voice actors are gud the art is very classic and nice and character design is good i r8 8000/8

I cri evryteim
Vote up for my recommend if u cri evryteim
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5 of 6 people (83%) found this review helpful
4.2 hrs on record
Posted: October 25
Prepare those box of tissues because the journey you will take will be a sweet sorrowlful one.
10/10
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5 of 6 people (83%) found this review helpful
9.1 hrs on record
Posted: November 3
This, is no short of Key standard, it is beautiful. Even though it's short, the story is so, so, so, I have no other way of putting this then, Key. And yes, I cried, worth at least double the prise. 11/10
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5 of 6 people (83%) found this review helpful
5.1 hrs on record
Posted: November 11
cried for 2 hours at the end
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4 of 5 people (80%) found this review helpful
4.1 hrs on record
Posted: October 26
Really enjoyable to read
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4 of 5 people (80%) found this review helpful
5.6 hrs on record
Posted: November 12
WARNING: severe feels overdose may cause heart failures, hipertonia or uncontrollable indiscriminate cuddling.

This story combines "There will come gentle rains" by Ray Bradbury, Terminator by James Cameron (dreams of Kyle Reese) and C3PO. Heroine would never shut up unless someone could die because of her endless chatter.

And answering people who still don't know if it's worth its money: it consists of concentrated win and nothing else. You can buy Clannad which has more win thinly distributed between gigabytes of text, endless bad ends and hours and hours of reading. Or you could buy this one, that has less content, but incomparably bigger win to vontent ratio, and cry from the beginning till the end credits, like I did. I didn't even know that I could cry for 4 hours straight.
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3 of 4 people (75%) found this review helpful
9.5 hrs on record
Posted: October 23
Key never disappoints, glorious ♥♥♥♥♥♥♥s.
Hopefully, this will mean more Key games will be officially localized soon.
Very short, but still recommended.
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3 of 4 people (75%) found this review helpful
1.7 hrs on record
Posted: October 26
This is a 2 hour voiced novel with scenes and music, and it has more emotional impact than many full length rpgs. Please get.

(This is a kinetic novel, so there is zero gameplay.)
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3 of 4 people (75%) found this review helpful
5.2 hrs on record
Posted: October 27
So many people have stated how great the kinetic novel is and I don't need to say more.
Like @とある科学のモビウス said on his/her comment about this game. The precious memories of Yomemi are the most touching part of this story, which makes me crying non stop! At the same time it brings heavy thoughtful message to us as whole human species. Are we losting our minds and souls that onced kindly and treat others good in this time everything is rushing?
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3 of 4 people (75%) found this review helpful
2.4 hrs on record
Posted: November 7
Super good. Short but still delivers the sort of emotional impact you expect from a Key novel.
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4 of 6 people (67%) found this review helpful
1.7 hrs on record
Posted: October 29
You will never be forgotten Yumemi...
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4 of 6 people (67%) found this review helpful
2.5 hrs on record
Posted: October 30
This novel is pretty much a generic story. But boy, does it do a good job telling it. The writting is great, it incoporates fun, seriousness, sadness, joy, and every other emotion you can think of so well. It's a wonderful story, and I would recommend it to everyone.
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1 of 1 people (100%) found this review helpful
3.5 hrs on record
Posted: November 19
A stunningly beautiful tale of a broken world full of broken people and broken machines. Each minute spent with Yumemi is one to treasure and hold close to your heart as her childlike innocence is the only beacon of hope left in a dead city. Filled with a soundtrack that fits the mood perfectly, Planetarian presents itself incredibly well. Hats off to KEY for being able to make the audience grow so attached to a robot in such a short time. Absolutely worth the time and money.
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