- September 10, 2020
- Cotton Candy Cyanide
- 20h median play time
Quantum Suicide
Platforms
About
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…







- 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.
- story106 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.”
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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.




