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Completed v1.1.4 + DLC

Cyan Brain

3.5
(86 votes)

Game Information

Version

v1.1.4 + DLC

Engine

Unity

Release Date

Jan 5, 2026

Last Update

Jan 13, 2026

Censorship

Censored

Overview

Cyan Brain throws you into a heart-pounding sci-fi horror adventure where survival is not guaranteed. As the sole survivor of an alien attack, your mission is clear: run, hide, and fight for your life against monstrous futa creatures in this animated 2D side-scroller. The fate of humanity rests on your shoulders.

Gameplay & Mechanics

Navigate procedurally generated environments, scavenging for resources while avoiding or engaging in intense combat with monstrous pursuers. Experience a blend of action, stealth, and survival mechanics as you uncover secrets hidden within the game's sandbox world.

Key Features

  • Procedurally generated maps for endless replayability
  • A variety of monstrous futa creatures to encounter and battle
  • Strategic resource management for survival and combat upgrades
  • Engaging animated 2D graphics and immersive sci-fi horror atmosphere

Installation

1. Extract and run.

Changelog

### 1.1.4
- v1.1.4
- Thank you all for your patience! Achievements for Cyan Brain are now officially live.
- We have also implemented the following fixes and updates:
- Added sounds for the shower scene with HS202.
- Fixed enemy illustrations where the uncensored assets were incomplete.
- Fixed an issue where collectibles were not unlocking correctly via Cloud Saves.
- Fixed a UI bug that could cause the game to crash.

### 1.1.3 Hotfix
- v1.1.3 Hotfix
- Fixed an issue where respawning after saving would still place the player back at the beginning of the level.
- The saving issue is still under active investigation and repair. If you encounter any other related issues, please report them in the discussion forum.

### 1.1.2
- v1.1.2
- Minor numerical adjustments and small bug fixes
- Added support for the Korean version

### 1.1.1
- v1.1.1
- Bugfixes

### 1.1.0
- v1.1.0
- New Dynamic CG Added (Unlockable After Clear)
- 2 New Monsters (Appear in Chapters 4 & 5 / Defeat Cutscenes Included)
- 2 New Weapons (Obtainable in Chapter 3 / Placement Changed)
- Mine System Implemented (G Key Deployment / Self-Destruct Mechanism Included)
- 1.01
- New Additions
- Added 3 new reward CGs
- ┗ Unlocked after clearing Stage 2, Stage 3, and Stage 4
- ┗ Already-cleared save data can directly view them
- Difficulty Adjustment
- Made Easy Mode even easier to clear
- Weapon Adjustment
- Improved performance of certain weapons
- Map Improvements
- Adjusted layouts of certain maps
- Bug Fixes
- (1) Fixed issue where collected battle data would be lost if the protagonist died
- (2) Fixed issue where protagonist would not appear at the correct location after loading a save
- (3) Fixed freeze issue when re-entering Stage 2 and talking to HS202
- (4) Fixed random crash issues
- (5) Fixed freeze when opening doors in maps
- (6) Fixed issue where some enemies would freeze in maps
- (7) Fixed issue where protagonist could still roll during NPC dialogue
- (8) Fixed incorrect UI display when restoring HP
- (9) Fixed missing collision in some map areas
- (10) Fixed negative ammo count issue
- 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
- *Please note that save data from the previous version will no longer be usable.
- **Please be aware that this version is a test release and may contain bugs that could affect the gameplay experience. We appreciate your understanding and valuable feedback.
- Ch.01 Test Demo
- Dear followers, thank you very much for your continued support.
- After much hard work, we are pleased to announce that the test version of Chapter 01 of [CYAN BRAIN] is now complete. We have uploaded the game content files so that our sponsors can play it.
- Due to time constraints, the story and dialogue content within the game have not yet been implemented. We plan to update the scenario system in the game by next month.
- This update includes the prologue map and related gameplay content, as well as new scenes, monsters, traps, and a boss.
- There is a possibility that the game save data may contain bugs. If you encounter any issues with the save data, please delete it and create a new save to play.
- The current version is a test version and may contain bugs that affect the gameplay experience. We appreciate your understanding and valuable feedback.
- The content to be added in the next update includes the following:
- △ Dialogue and collectible items for Chapter 1 to deepen the understanding of the story
- △ New NPC characters
- △ Many more new weapons
- △ Base system update, allowing various activities at the base
- △ Addition of an animation viewing mode

Cyan Brain

v1.1.4 + DLC Windows

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