Quantum Suicide: A Sci-Fi Visual Novel of Betrayal and Survival

9/11/2026, 11:35:02 AM

Release date: 9/10/2020

Tags: #visual-novel #story-rich #mystery #choices-matter #multiple-endings #psychological-horror #violent #anime

User Reviews

Score: 78%Mostly Positive
Review Count: 118 reviews
Fetched At: 9/11/2026, 11:35:02 AM

Reference prices

Japan

¥ 1,999 (JPY)

Steam JP

$19.99 (USD)

Steam Global

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 1,999
Global Price: $19.99
Price in Your Region: ¥ 1,999Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 20 Sept 2026
Sale Status: Regular pricing
Price Checked At: 9/18/2026, 12:10:13 PM

The price snapshot and review snapshot differ by about 169 hours. Because they are not always refreshed at the same time, confirm the latest Steam listing before making a purchase decision.

Key highlight

A sci-fi visual novel where your choices determine survival amidst betrayal and a deadly AI on an interstellar mission. Features multiple endings and psychological horror elements.

Who this is for

Embark on a perilous interstellar mission where your choices dictate the fate of the entire crew in this gripping sci-fi visual novel. Navigate a web of betrayal and deception as you fight for survival against a deadly AI. With multiple endings, replayability is high as you uncover every possible outcome.

Details

Overview

Quantum Suicide plunges players into the chilling void of space, presenting a science fiction thriller wrapped in a visual novel format. Developed and published by Cotton Candy Cyanide, this title explores themes of betrayal, deception, and romance amidst a desperate struggle for survival. The narrative centers on an intergenerational mission and its diverse crew, who find themselves pitted against a malevolent AI and, at times, each other.

Highlights

Features a compelling narrative driven by player choices, leading to multiple endings.
Combines elements of mystery, psychological horror, and romance within a sci-fi setting.
Developed by Cotton Candy Cyanide, known for their work in the visual novel genre.

Who It's For

This game is ideal for players who enjoy story-rich experiences with significant player agency. Fans of visual novels, psychological thrillers, and science fiction narratives that explore complex character relationships and moral dilemmas will find Quantum Suicide particularly engaging. Those who appreciate games where choices genuinely impact the outcome and enjoy a touch of mystery and horror will be drawn to its premise.

Game Info

Quantum Suicide is a paid title released on September 10, 2020. It supports both English and Japanese languages. The game is categorized as a Visual Novel and is noted for its story-rich gameplay, mystery elements, impactful choices, multiple endings, and psychological horror themes. It also includes violent content and anime aesthetics, as indicated by Steam user tags. The game supports multiplayer and family sharing, and controller input is also available.