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Developer: NEKOUJI STUDIO
Censored: Yes
Languages: English
Version: 1.0
OS: Windows
Game Engine: Unity
Age Rating: 18+
Game Size: 419.0 MB
Release Date: 12 Aug 2025
Game Details

Synopsis

Cyan Brain is a decadent sci-fi side-scrolling action shooter game. An unnamed girl awakens in an unknown time and space, her destiny already etched in her bones. Unaware of prayer, she faces a world of broken machines. At the end of endless slaughter and a desperate encounter, a flickering blue light is shattered and stolen countless times, but the girl still carries on.

As the sound of church bells echoes between violence and salvation and the limits of flesh and spirit crumble, the world quietly begins to change. In the depths of a nightmare, two souls, each reflecting the other’s shadow, finally emerge. “Are you prepared to sacrifice your all?” This is a dark fable of existence and annihilation, fear and pleasure.

Cyan Brain
Cyan Brain
Cyan Brain
Cyan Brain
Cyan Brain

Changelog

2025-08-13

  • Full Release

Demo 4.0

  • N/A

Demo 8.1

  • Base/Story System/Content Update

Demo 6.14

  • New weapons

  • A device for replenishing ammunition

  • A feature to expand the field of view

  • Several new screen effects

Developer Notes

Note: This game contains violent and grotesque depictions and extreme scenes. Some scenes may evoke physical harm, mental abuse, and sexual domination. Please be careful when viewing or playing.

Installation Instructions

Extract, and run the game.

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