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四合 Quadrangle

Game overview

四合 Quadrangle

CLSTA · Oct 1, 2026

Muni awakens on an unfamiliar campus, drawn into a web of mysteries. Your choices shape relationships and the path of the story. A relationship-driven yuri game.

Action Adventure Casual Indie
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About this game Read the full description

◆ Story

“In a world rewritten,
no one remembers the truth anymore.”

Muni wakes up in a school she’s never seen before.
She doesn’t remember who she is — or why she’s here.
Rumor says this academy hides a secret experiment,
and her arrival sets destiny’s gears in motion—
every choice changes someone’s fate, including her own.

To find the truth.
To save one life.
She must erase another’s existence.

⸻

◆ Features

  • A suspenseful story woven through multiple characters.

  • Mystery × Romance × Battle  — where tenderness meets danger.

  • A branching and restart system leading to completely different destinies.

Media gallery 13 screenshots · 0 videos
四合 Quadrangle game capsule image

Screenshots

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System requirements Windows · macOS

Windows

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7 SP1 / 10 / 11 (64-bit)
  • Processor: Intel Core i3
  • Memory: 4 GB RAM
  • Storage: 4 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system

macOS

Minimum

Minimum:
  • OS: macOS 11
  • Processor: Apple M1
  • Memory: 4 GB RAM
  • Storage: 4 GB available space

Recommended

Recommended:
    Game details Languages, features & support
    Publisher
    CLSTA
    Brazilian rating
    16
    Steam Germany rating
    16
    Features
    Single-player, Captions available, Custom Volume Controls, Playable without Timed Input, Save Anytime, Subtitle Options, Family Sharing
    Languages
    English, Japanese, Simplified Chinese*, Traditional Chinese
    *languages with full audio support
    More analysis Activity patterns, updates & developer tools

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    Frequently Asked Questions

    Is 四合 Quadrangle free to play?
    Yes, 四合 Quadrangle is free to play on Steam.
    What genre is 四合 Quadrangle?
    四合 Quadrangle is a Action, Adventure, Casual, Indie game.
    Who developed 四合 Quadrangle?
    四合 Quadrangle was developed by CLSTA and published by CLSTA.
    What platforms does 四合 Quadrangle support?
    Available on Steam for Windows, macOS.