Visual Novel / Quantum Suicide

From left to right: Beatrix, Kimiko, Shizuka, DAI, AI, Yoshiki, Katashi, and Nikolas

Quantum Suicide is a Science Fiction Psychological Thriller Visual Novel, developed and published by Australian indie game company Cotton Candy Cyanide. Following a successful campaign on Kickstarter, it was internationally released on September 20, 2020.

You play as a researcher aboard a spaceship, the Everett, 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 rounds of the Deletion Game. Can you see the Everett's mission through to the end...alive?

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Tropes:

• A.I. Is a Crapshoot: AI, the Everett's artificial intelligence with a humanoid interface, appears to be the instigator of the Deletion Game that kills its crewmembers.
• Become a Real Boy: Two endings on each side involve Ai and Dai becoming human, but only after finding the name they want to be and learning the Boot Code. A third ending is only on the Male side, where Jordan can date his Female version. Ai's name is Eve and Dai's name is Alice.
• The Captain: Captain Kimiko is an orderly, obsessive woman with a fierce determination to protect her crew and their mission.
• Clark Kent Outfit: Nikolas is one of the medics on the ship, but underneath the labcoat he is ripped, with bulging muscles and six-pack abs. Yoshiki tends to wear a button-down shirt and suspenders, but when he works in the engineering room, he takes his shirt off and is revealed to have a six-pack.
• Contemplate Our Navels: One of the story's main themes is the titular concept of Quantum Suicide and Immortality, which is similar to the Schrödinger's Cat thought experiment, but from the cat's perspective, which theoretically results in an immortal cat.
• Forced to Watch: Dai makes sure every player attends the executions regardless of age, threatening to turn off the oxygen if they don't go.
• Four Is Death: Beatrix and Yoshiki each have four routes where they die.
• Fun with Acronyms: Dai's name, D.A.I., means Destructive Artificial Intelligence. She prefers to spell it like Dai cause it rhymes with "die."
  Dai: There's nothing I enjoy more than a good play on words.
• Gender-Equal Ensemble: The current staff of the Everett consists of three males, three females, and the player (whose gender is chosen at the start).
• Hello, [Insert Name Here]: While the main character can be named anything, their canon first name is Jordan.
• High-Voltage Death: Yoshiki can die by electrocution if Team A loses the Bidding Wars, being the player with the fewest points. He pulls out exposed wires from a fuse box that send high voltage through his body until Dai confirms his death.
• Kill It with Fire: One of the executions is to be burned alive in the ship's incinerator. Siding with Beatrix and Nikolai gets Jordan killed, while every other choice leads to Sora's death.
• Meaningful Name: Tying in with the central theme, the Everett is named after physicist Hugh Everett, who first proposed the "many-worlds" interpretation of quantum mechanics.
• Me's a Crowd: In certain routes, the player is able to run into alternate versions of themselves from the other routes.
• The Password Is Always "Swordfish": The password on Jordan's father's tablet... is "password." Even Ai lampshades that it's a weak password.
• Red Eyes, Take Warning: When Dai is the one in control of Ai, Dai's eyes are red compared to Ai's gray.
• Relationship Values: The player can romance their fellow crewmates, though some are only interested if the player is a specific gender.
• Russian Roulette: Vladimir can be killed this way from losing the Bidding Game in Chapter 2. Since there are no guns on the ship, Dai makes him pour vodka into vials and a drop of poison into one before putting them into a centrifuge to mix them up. The chambers are numbered, meaning he already knew which drink was poisoned, and swallows it, knowing it will lead to his death.
• Sacrificial Lamb: Sora is always the first player to die, regardless of the timeline you jump to.
• Shout-Out:
  • In Day 1, when playing with Melody, you play with her dinosaurs and have this dialogue.
    Jordan: *ROAR* We dinosaurs shall rule over this land. It shall be named... Garden Land.
    Melody: That's a silly name. Let's call it something else.
    Jordan: Ah! Curse your sudden but inevitable betrayal!
  • In Day 11 during the Logiship Game, if you select #3, you find out you killed yourself. The achievement for it is "I immediately regret my decision."
  • There's a hidden scene (and related Steam achievement) that references Yangyang Mobile, the developers behind The Letter and Love Esquire. This is in the Female timeline where Vladimir and Yoshiki die, then jump to the next dimension. Beatrix is Hannah, Nick is Luke, Kimiko is Marianne, and Shizuka is Lorraine.
  • Getting the Love Thyself ending gives the achievement name "When I think about me, I touch myself."
• Story Branching: The player's decisions will affect others' actions during the Deletion Game and who survives it, leading to roughly 30 Multiple Endings.