A downloadable game


Quantum Suicide is a game of betrayal, deception and romance in the cold depths of space.

This science fiction thriller tells the tale of an intergenerational mission and its diverse crew, fighting against a deadly AI (and each other) for the chance to survive. Strategy, love interests and quantum mechanics await you. Your choices change the fate of everyone in Quantum Suicide, releasing on PC, Mac and PSVita and PS4 in 2019.







Quantum Suicide is a Japanese-style Visual Novel set in space. You play as a researcher aboard a spaceship on an epic mission to find humanity a new home. The mission is jeopardized by a corrupted A.I system that forces you to play "The Deletion Game", a weekly game where you must battle your crew mates for survival. Prepare to make both friends and enemies of your crew members as you play through a series of puzzles and strategy mini-games. Can you see the Everett's mission through to the end...alive?

An example of the puzzles you can expect (パズルの例):

Quantum Suicide contains 6 courtable options (3 females, 3 males). With their own hopes, desires, personalities, and sexual preferences, you will have to move carefully to earn each character's affections. Each courtable character has at least three posed sprites, each with multiple facial expressions. In addition, all characters are partially voiced by professional Japanese voice actors. Boasting over 30+ hours of gameplay, you must navigate your way through over 30 different endings, including bad, good, and true endings for all courtable options.

  • Play as a Boy or a Girl
  • 女性か男性を選び、星をナビゲート
  • 7 Courtable Options (3 Male, 3 Female)
  • 選べる7人のキャラクター
  • Courtable Options Have Their Own Sexual Preferences
  • 選べる7人のキャラクターは恋愛の好みもそれぞれ
  • Including 6 chapters and over 30 Different Endings
  • 全6章と30種類以上の違うエンディングが登場。
  • Available in English and Japanese, with Voice acting.
  • 音声はもちろん、各操作は英語と日本語の2カ国語に対応。

Games Release: Production is back on! New PC ETA is Late 2019. For more information please click HERE.

発売日: 2019

Install instructions

You will need to unzip the file before you can install and play :)


Full Voiced Quantum Suicide Demo. 443 MB
日本語の体験版のダウンロード 198 MB
Quantum Suicide Beta Prologue. 273 MB
Quantum Suicide - Christmas Everett 116 MB

Development log


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Viewing most recent comments 1 to 40 of 45 · Next page · Last page

Can't wait for the game's release!

Shizuka best girl until proven otherwise (as in when she backstabs me, but she'll still be best girl).

Key word to take from there is when, not if.

I feel like almost everyone can backstab you, but I'll have to wait and see :)

Moltencherry, have you ever seen the movie Primer?  It is a very interesting film that shares a certain scientificish story feature in common with Quantum Suicide (not sure if too spoilery to directly say what it is).


Hey Platonic Forms!

I have not - however, upon googling it, that will change within 24 hours :P Thanks for the question and the movie suggestion <3 

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This game looks really good! I'm so happy you went to PAX, I'm not sure I would have found you otherwise. I'm amazed that an Australian game company is making a Sci-fi, Japanese style visual novel, set in space, with an AI on board! It even looks like it was made in Japan! 

I just Pre-ordered it, can't wait to play it when it comes out!

104 days ago eh? fashionably late reply?

Thanks Robinicus! I am glad you like the look of it, and I hope, you will love the final product! PAX was good fun! Hope to see you again in 2019 PAX <3

In addition to the main page, the wiki has developed to include some pages about characters and locations.  There is a section about the Deletion Game as well.



*Looks at the wiki and gets giddy with happiness* Soon you will have much more to add to the Deletion Game page :)

I love this game! I played the demo a while ago and just stumbled across it again, I hope you continue development! Any ideas on the price when/if it gets finished?

I am glad you loved the game!! I am working on the development as we speak~ So that is a defs WHEN! :D

As for price points - it is expected to be 19.99USD on Steam once released (and probably Itch.io as well, I just need to get acquainted with their system).

Will this game be released this year or in 2019?

Wasn't the kickstarter goal for romancing AI 50,000? Did things change or did we meet it somehow? Either way, keep up the good fight. ^.^

There is an A.I ending - if you can unlock it - Mwhahahahhahahahha *coughs* hahahhaa.


Hopefully it's not that kind of game where developer just makes some prototype things, demo's, and then runs away with money from kickstarter...

This project remind me of zero escape HUGELY, so, I hope I'll get to play it someday!


Hahahaha, If I was going to run away with the Kickstarter monies - I really missed that window.

So please don't fret! I am working on the full game and its release now :D Thank you for being excited to play it~

Is it at all possible that either AI or DAI will be courtable options? (I'm just curious.)


Come closer friend. . .

*whispers* There is an ending that allows you to be with one of them :P

mT.Tm  Thank you very much Candy-sama, your game should be even more fun knowing this fact!


It will be interesting to see if being close to the D.A.I. leads that being to favor the protagonist's survival over other characters.


A Quantum Suicide wiki now exists:   https://quantum-suicide.wikia.com/wiki/Quantum_Suicide_Wiki  :)

Depending on how it is viewed (logged into an account, whether on mobile page, etc), the game's description may or may not appear on one's browser page right now.


Quantum Suicide... now has a wiki!? T.T Words can not explain how happy and humbled I am right now. Thank you GrangerParadox <3

holy when is the full game coming out i'm really exited for it


Fingers crossed LuckyPielover (great name by the way - I LOVE PIES), it should be out late this year~ I am working my butt off on it and to clear up some release hurdles as we speak (Or more literally, as I type :P).

Wow, this demo was really good! Got me on hype already, very curious to see what the full game will hold!

Thanks Repersche! I am glad you enjoyed the demo and are excited for the full games release!! :D

HOLY FUCK, I can't wait till the full game, and that ending!!! GOT ME SO SHOOK. I thought Kimiko was acting BUT NOPE, IT WAS SOMEONE ELSE! ( I didn't look at the pictures on the side so oof ) this got me hooked so fast.

Hahahaha, Thank you so much for giving Quantum Suicide a try and also taking the time to comment! I am glad you liked it and am more than happy to feed your new QS addiction soon :D

I loved the demo!I can't wait to play the full game!

<3 I can't wait for you to play it either! T . T

The demo was very interesting. Good way to meet the characters and goob begenning for bigger story. Very good artstyle with great sprites, good BGs and CGs + nice music. I'm sure the rest of the story will as interesting and thrilling as this little part. 

I can only suggest you to add more save slots. One page with only six of them is not enough. For such big game as this (+ it has a lot of meaningful choices) you should make at least 10 pages with 6 or a bit more slots each.

Thanks for your advice MrMar! I am always happy to receive feed back from players :D  I hope that once the full game is released and you get your hands on it, the saving system will be up to your standards! 

I'm so exited for the full game

Thank you so much for your excitement! 

Help! I can't open it on my mac T^T 

(Sorry for such a slow reply T.T)

I do not have a Mac, so I am unable to test on my end but will try to locate someone with one to test on it. Just to be sure, have you unzipped the file? I know that on some PC's it looks like you don't need to and when you click on the executable file nothing happens. I will get back to you once I have info on Macs!

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It should work on Mac - The game build that I have done is PC, Mac and Linux :D

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So I've played the demo and was blown away by it. As a huge zero escape and Danganronpa fan I just can't wait until this gets released.

I've read that the developement is currently on hold and that's very unfortunate. Surely it has it's reasons but please don't let it become one of "those" games which will never be finished, there's so much potential here.

Good luck to you guys!

Don't worry, this will definitely be finished eventually. This developer is incredibly devoted to the game and its fans. She even made a christmas fangame very recently which is very rare among developers, and it really shows how incredibly devoted MoltenCherry is. 

why isnt it available for windows

Hi! this game seems cool, i'v only played for a little bit. i have a thing  to say though. I personally like the Japanese voice actors more than the English ones, so I'd love if the characters spoke Japanese but it has English translations. Is that too much? :\

Comment before playing: This sorta reminds me of 

This is both one of my favourite and confusing comments. I am in suspense here! Reminds you of...?

whoops messed up there, sorry. I didn't realize that it was incomplete. CONTINUING... It reminded me of the manga series Are You Alice? and the Visual Novel Summoner Sweethearts. Both of them are really good with AYA?'s mystery and mindf*cks and SS's cute art and complex game. Well, that was my opinion before playing, but I was glad to know that I was not disappointed and got more than what I initially expected. Good Game.

Will this come to windows?


When it is released, it will be compatible for Windows :)


this game will be released this year?
I want to play so much


Unfortunately SecretSnow we have had some set backs T.T and production is on hold.

I am hoping that we can pick it up ASAP and get it out! I will keep you posted. Thank you so much for wanting to play! :D

Do you have any plans for this game to have English voices for the characters? And if so, would I be able to audition?

Hi RocktheGolem!

We unfortunately already have an English VA cast - however, I don't plan on this being our only game we make, so please contact us via our website so I can put you and your casting reel on file :D (If that's OK with you of course)

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I've been following this game for a while now, I don't quite remember when I downloaded the demo... But I have to say that what you've done is outstanding! I've never played Danganropa or  Zero Escape series (which I should check out), but I really like the courtable and main character gender options! As a gay female, it can be quite hard to find games that have a good storyline and a few options for the romance interests, along with a preferred gender. I think you're going to get so much more success for adding those two things to the game, and I really do appreciate it! I know you didn't do it for me, obviously, but on behalf of all the people out there who wanted some more representation and a kick ass story, we thank you and can't wait for the release!!

Keep working hard, (and I'll be here until the finish product since I've been waiting for about a year, and I'm stoked you didn't abandon the project) !!! 


Thank you so much for your kind comments!

I am super happy that you enjoy the inclusion of different sexual preferences. I wanted to make it available in the game (as both the player character and the NPC's) but I didn't want it to be what made the game, I wanted it to compliment it :) So thank you for being excited and still waiting! I am sorry its being delayed but I hope you will love it when it comes out <3

Really great stuff so far, loved the demo and beta prologue. The characters were well written, the premise was engaging and the art style is really nice. I agree with other commenters comparisons to the Danganronpa and Zero Escape series', definitely evoked similar vibes. Probably bad for me to admit, but I really liked DAI's character, haha. Very much looking forward to the full release of this one!


Thank you so much!! Dai is one of my favourites to write so I am glad you like her :P

I want to play this game soo bad! I hope you can make it for Windows! Good luck!

It will be compatible with Windows once it is release :)

Thank you!!

Waiting for the new  monthly update

Writing it now! Sorry for the delay - I have had glandular fever T.T

I thought I recognized this from KS! can't wait

I've been followed Quantum Suicide since you posted the idea on kickstarter. We need more games like Danganronpa and Zero escape and your game has in my opinion real potential in becoming another great masterpiece game. I've been waiting for more than a year now and I'm really hyped for the full release of the game. 

I'm sure this doesn't mean much to you as you get a lot of fan comments here on your site, but I just wanted you to know that you have a fanbase that support you. Good luck! 


Hi Elias0012!

        Thank you so much for your message and your support but I need you to really understand the gravity of your actions. Please listen well!

You think that your comment doesn't mean much but this is far from the truth. The time that you took to write your comment, and the comment itself means the world to me. Just because I have received support before, does not take away from or belittle the power of yours.  I am currently quite ill and am working my hardest each day to get a little bit more of Quantum Suicide done. Your comment changed my day and my mental state and I can't thank you enough. I was allowing being sick to get on top of me, but with your one comment I am renewed in spirit!

I am the luckiest developer in the world to have the community and support that I do. Please don't ever feel that your words fall short on others, and if they ever do, they don't deserve to have you.

<3 MoltenCherry 

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Just wanted to say that this game looks very interesting.  The combination of branching story, multiplicity of player selectable choices, interesting characters, and the parallel worlds looks like an awesome recipe.  Looking forward to this game.  I am a fan of the Danganronpa and Zero Escape series and this game looks to be a good future addition to the genre.

Why thank you TheGrangerParadox <3


Not to be a bother but your release date is July 2017 and it is past that. Will this be updated? 


Not a bother at all! 

Thank you so much for reminding me that this was not updated! As a one person studio things can slip through my hands especially as I am crunching hard to get this out :) Thank you again so much for politely letting me know so I could update it! :D

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the demo really intrigue my curiosity and I just already know who will I eliminate first, hmm... can't wait for the full release x3

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This game looks really nice. I want to know whether the prologue or the demo will give me the closest experience to the full game when it releases.The story and ambiance has really caught my attention,keep up the good work:)

Thanks for trying the prologue/demo! The prologue is the beginning of the game and so the experience is very similar to the rest of the chapters. Hope that helps answer your question :)

Yeah thanks for the clarification.Good game.

Oh my gosh, I finished the prologue and holy heck were the Danganronpa vibes strong. Thanks for making this game, it's really amazing! ;) Good job!

super cool. I really like the idea of this game in general and, from what is playable, it seems really well done. I really look forward to seeing this game come together :) great work.

Finished the demo recently, the suspense from that final shot is killing me! The premise reminds me quite a bit of Danganronpa, which is great as it's my favourite series of all time! Quantum Suicide will give me something to enjoy during the inevitable wait for NDRv3 (and it'll be something I can fully enjoy without spoilers for once). I'll be marking the release date on the calendar, and definitely buying the full version!

Thank you so much for playing the demo Tom! I am so glad that you liked it! Danganronpa is also one of my favourite titles too :)

Just finished the demo. Enjoyed it quite a bit, looking forward to full release!

Thank you so much Xjwghg for giving the demo a try! We really hope you enjoy the full game when it's released <3

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