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Quantum Suicide is a single player casual simulation game with horror, romance, mystery, anime and others themes. It was developed by Cotton Candy Cyanide and was released on September 10, 2020. It received overwhelmingly positive reviews from critics and mostly positive reviews from players.

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. You play as a resea…

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77%
Audience ScoreBased on 97 reviews
story39 positive mentions
stability10 negative mentions

  • Engaging visual novel with an intriguing sci-fi premise and well-designed characters, providing high replayability through multiple branching paths and endings.
  • Strong production values including sharp, professional-quality art and mostly full voice acting in both English and Japanese, with notable performances bringing characters to life.
  • Deeply inspired by Zero Escape and Danganronpa, offering an accessible yet distinctive experience with compelling dialogue, dark humor, and thoughtful integration of quantum theory into the story.
  • Game suffers from numerous bugs and technical issues, such as audio glitches, mismatched voice lines, UI roughness, and inconsistent or missing dialogue, detracting from immersion.
  • Story pacing issues with rushed and sometimes anticlimactic endings, limited impact of choices due to forced route structures, awkward romance mechanics, and lack of emotional depth in character reactions.
  • Minimal and shallow gameplay elements with few puzzles or strategy in the deletion games, leading to repetitive, luck-based outcomes and overly linear narrative branches despite multiple endings.
  • story
    106 mentions Positive Neutral Negative

    The story of the game offers an intriguing sci-fi premise with multiple branching timelines and a mix of mystery, character interactions, and romance, though many found it uneven and rushed, with some plot points and character developments feeling underexplored or abrupt. While the narrative includes compelling characters and emotional moments, pacing issues, forced romantic elements, and lack of deeper integration of sci-fi mechanics detracted from immersion for some players. Overall, it is praised for its heart and replayability but criticized for bugs, inconsistent writing, and a less polished, predictable plot.

    • “The story was interesting, especially with how the different routes play into the story and how it brings on a mystery that you can actually trace where it started. The characters and the interactions you have with them are great, and routes are different enough to go through again.”
    • “Quantum Suicide is an engrossing experience, with a brilliant science fiction story and lovable characters.”
    • “I love the artstyle, the voice acting (Dai is pure perfection in everything and her having a mini-ending all to herself is fair, lol), the characters, the deaths that made me have feels (in 90% of cases), the plot that makes sense most of the time (the true ending deserved its name, as I felt satisfied with how the main plot was concluded).”
    • “The sci-fi mechanics aren't as heavily integrated into the story, and the explanation for each one is vague, if one is even provided at all—if you don't understand time dilation already, this game won't explain it to you adequately, even though it really should.”
    • “Making people play both gender protagonist and both having slightly different story is a terrible design decision.”
    • “Basically, there are just random pseudo-conflicts to break up the boring and cheesy dating sim elements which have no real bearing on the story, not that the story itself is interesting.”
  • music
    18 mentions Positive Neutral Negative

    The music in the game is generally decent and atmospheric, with some standout tracks that add soul and intensity, particularly in key moments. However, many users felt the soundtrack often lacked fitting emotion or variety, sometimes feeling flat, mismatched, or too limited in scope, which detracted from the overall experience.

    • “The art and music are very nice.”
    • “Good art, music, voice acting, story, and replayability!”
    • “The music is fantastic and sets the mood of the game.”
    • “The music that didn't fit into the narrative, was often too happy or peaceful even if the stakes should be high.”
    • “To put it nicely, the soundtrack leaves much to be desired.”
    • “Put plainly, it's not as awful as Resident Evil: Director's Cut, but the soundtrack being bland really, really hurts this game.”
  • gameplay
    14 mentions Positive Neutral Negative

    The gameplay features intriguing sci-fi timeline mechanics reminiscent of Zero Escape but lacks integration and clear explanations, resulting in confusion. It leans heavily on visual novel and dating sim elements without true puzzle challenges, and progresses via predetermined routes rather than player interaction. Additionally, bugs, a clunky UI, and forced character choices further hinder the overall experience.

    • “The jump mechanic was a very fun gimmick, which I would’ve loved to see exploited in more puzzle-oriented gameplay.”
    • “It's an indie game, so it can't provide as much gameplay as larger titles, but the story is compelling, the characters are great, and there's still a nice hefty chunk of mystery solving to be done that's kept me going.”
    • “Unlike those games, this one plays more like a Zero Escape game except without the puzzle rooms and with a much smaller budget, featuring awkward UI and gameplay mechanics.”
    • “The sci-fi mechanics aren't as heavily integrated into the story, and the explanation for each one is vague, if one is even provided at all — if you don't understand time dilation already, this game won't explain it to you adequately, even though it really should.”
    • “Unlike those games this one plays more like a Zero Escape game except without the puzzle rooms and with a much smaller budget (awkward UI and gameplay mechanics that I can't go into to avoid spoilers).”
    • “While the core idea, characters, and plot execution are extremely well done, the game is staggered by the various bugs and mechanical issues that plague the game in its current state.”
  • humor
    11 mentions Positive Neutral Negative

    The game's humor is widely praised for its hilarious jokes, witty and well-written character dialogue, and a comedic tone reminiscent of Zero Escape but with a unique twist. Players frequently found themselves laughing out loud, enjoying the mix of comedy, romance, and occasional horror, as well as the playful and self-aware jokes about endings and character interactions. Overall, humor is a standout and memorable aspect of the experience.

    • “Hilarious game that was similar to Zero Escape but as a comedy.”
    • “The characters and dialogue are super funny and I can't wait to see more.”
    • “From psychotic Dai's insults to each individual crew member's cynicism of their dire situation, I found myself laughing out loud many times.”
  • graphics
    10 mentions Positive Neutral Negative

    The graphics are praised for their sharp, distinctive character designs and beautiful, varied art style that enhances the storytelling. The visual presentation is complemented by top-notch voice acting, creating an immersive and emotionally engaging experience. Overall, the stunning visuals contribute significantly to the game's appeal, especially for visual novel enthusiasts.

    • “The graphics are sharp, there's no possibility of confusing the various characters, and all the designs are very distinctive for their personalities.”
    • “Crisp graphics, nice character design, and top notch voice acting are the icing on the cake.”
    • “The art style is beautiful and there is a lot of variance in colour schemes.”
  • stability
    10 mentions Positive Neutral Negative

    The game launched with numerous bugs, glitches, and technical issues, including cut-off sprites and inconsistent voice lines, which negatively impacted many players' experiences. However, these problems were mostly non-fatal and have been steadily addressed through patches, improving overall stability significantly since release.

    • “Technical mess, game is buggy, this could be solved with patches but the release state of this game was very bad.”
    • “Lines differ from what voice actors recite, sprites can linger on the screen when that character is no longer present, in addition to many other bugs, glitches, and oversights.”
    • “However the bugs and glitches are fatal to player experiences, so please avoid at all costs in your next game developer.”
  • emotional
    8 mentions Positive Neutral Negative

    The emotional aspect of the game elicited strong reactions, with many players finding it to be a powerful and moving experience, especially due to well-developed characters and impactful storytelling. However, some felt that certain elements—like executions and voice acting—lacked emotional depth or pacing felt off, slightly dampening the overall impact. Despite these flaws, the game is generally praised for its heartfelt moments and engaging emotional rollercoaster.

    • “Overall, I loved the characters, the general premise, the deletion games were really fun, the writing was really good, there were a few twists that threw me for a loop, and overall it was a great experience and an emotional roller coaster that I enjoyed!”
    • “I have not been that emotionally moved by a game in... ever, basically.”
    • “All characters have a realistic feel to them, the way they grieve the others when they die is heartbreaking (to me at least), and as someone who didn't think they'd enjoy all the characters (but did), that's very sweet.”
  • atmosphere
    7 mentions Positive Neutral Negative

    The atmosphere in the game receives mixed feedback: some praise its eerie, lonely, and hauntingly compelling vibe, while others find it lacking in tension and emotional impact, especially during critical moments like character deaths. Additionally, the musical atmosphere is seen as generic and not always well-matched to key scenes, which diminishes the overall emotional resonance.

    • “A very compelling story, ingeniously devised games and a really eerie atmosphere.”
    • “The visual atmosphere is lonely but lively, distant yet comforting, uneasy and cold.”
    • “The music was atmospheric, though it could have been more poignant during key scenes.”
    • “Atmosphere is important for these kind of death games, but this game totally lacks any tension whatsoever. I don't even feel anything when myself or someone else die; it's just very abrupt.”
    • “All atmosphere gets lost once you start selecting different routes to open up locked routes that require you to play certain other routes.”
    • “As a final point of weakness, the game also lacked the fitting atmosphere I'd expect.”
  • replayability
    5 mentions Positive Neutral Negative

    The game offers excellent replayability through multiple story paths and distinct male and female versions, providing varied experiences. Its engaging storyline, combined with quality art, music, and voice acting, further enhances the desire to replay. Overall, players find significant value in revisiting the game.

    • “Fantastic replayability value as well.”
    • “Intriguing multiple paths to take, a lot of replay value with its entertaining storyline.”
    • “Replayability also seems high with so many story tree possibilities.”
  • optimization
    5 mentions Positive Neutral Negative

    The optimization aspect is negatively impacted by performance issues and bugs, which hinder the overall experience. While some English voice acting is praised, many performances suffer due to technical problems, resulting in an inconsistent audio presentation.

  • character development
    2 mentions Positive Neutral Negative

    Users praise the character development for being engaging and interactive, complemented by crisp graphics, appealing character designs, and excellent voice acting that enhance the overall experience.

    • “Getting to know the characters was fun and interactive, and you can see some character development as well.”
  • monetization
    1 mentions Positive Neutral Negative

    No clear feedback on the game's monetization is provided in the user comment.

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100%Critics’ scoreBased on 1 critic reviews
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20h Median play time
20h Average play time
20-20h Spent by most gamers
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Frequently Asked Questions

Quantum Suicide is a casual simulation game with horror, romance, mystery, anime and others themes.

Quantum Suicide is available on PC, Mac OS, Windows and Linux.

On average players spend around 20 hours playing Quantum Suicide.

Quantum Suicide was released on September 10, 2020.

Quantum Suicide was developed by Cotton Candy Cyanide.

Quantum Suicide has received overwhelmingly positive reviews from players and overwhelmingly positive reviews from critics. Most players liked Quantum Suicide for its story but disliked it for its gameplay.

Quantum Suicide is a single player game.

Similar games include Royal Alchemist, Ethereal Enigma, The Pale Beyond, Cabernet, AI: THE SOMNIUM FILES and others.