
CYAN BRAIN
Cyan Brain is a decadent sci-fi side-scrolling action shooter. Awaken to face endless slaughter and desperate encounters. "Are you ready to make the ultimate devotion?"
Offers
What are keyshops?Official stores
Official stores with direct support.
DLCs (1)
About CYAN BRAIN
‼️This game contains violence, gore, and extreme content. Please read and play with caution.‼️

Unknown time. Unknown place.
The moment the nameless girl opens her eyes, her destiny is already set in motion. With no prayer nor blessing to guide her, she steps alone into a colossal ruin choked with deranged machines.
After unbearable despair and the unending cycle of slaughter, the wavering blue light of her will is shattered, stolen, and trampled again and again, yet she continues forward.
Between cruelty and salvation, the tolling of the Church’s bells cuts through the world, and as their maddening echo strips away the last restraints of flesh and mind, the world begins to shift.
In the depths of this nightmare, she sees it:
Two souls appear, reflections of each other's shadow.
"Are you ready to make the ultimate devotion?"
A dark fable of existence, annihilation, terror and pleasure
- CYAN BRAIN


CYAN BRAIN is a decadent sci-fi side-scrolling action-shooting game.. The game includes the following:
Visceral shooting action
Fear-inducing executions
Mountable heavy weapons
Full-screen animated cinematics
When you take damage in combat, your outfit will gradually tear. Successful attacks trigger random, realistic blood-splatter effects that make the action feel even more visceral. If an enemy defeats you, a unique execution animation will play, and you’ll receive a collectible Death Card upon your character’s demise.

Collectibles:
weapons: 16
Enemies & Traps: 32
Execution & H-Animations: 34
Death Cards: 36
Full-Screen HCGs: 3
You can view them all in the in-game gallery!
Gameplay Hints:
Eating food increases your hydration. Healing items are automatically created at max hydration.
Use your melee weapon to take out enemies when out of ammo
If you don't want to go out in the nude, saving the game will bring back your clothes.

Protagonist
CV: Momoka Kosuzu

A girl who has lost both her name and her memories. To fulfill the mission entrusted to her, she explores a vast ruined city while battling the many hostile entities created by the organization known as the Church: a group that once reshaped her body into a living weapon. Each fight sharpens her skills, strengthens her body, and leads her to new and powerful gear whose potential she gradually unlocks.
By following the memory fragments scattered throughout the map, she draws closer to the truth behind this devastated world. The companions she meets along the way give every step she takes through the ruins real meaning. In time, those connections will become the signposts guiding her toward the "end of fate" that awaits.
HS202
CV: Ryo Suzuki

A member of the Church's Hunting Squad, but... it seems she's gotten lost.
L
CV: Izumi Mikoshiba

A former researcher of the Convent. Before her death, she preserved her lingering consciousness inside a specialized device and entrusted a certain plan to the newly awakened protagonist.
M
CV: Yui Otokura

A mysterious girl who appeared within a strange domain. She speaks in a cold, mechanical, almost emotionless tone.
*The final version of the game will be uncensored. Store images are for promotional reference only.
Game details
Game details
Age ratings
Game modes
Languages
Audio & text: Japanese
Text only: English, Simplified Chinese, Traditional Chinese, Korean
CYAN BRAIN price history
Lowest tracked price: CA$17.54 (Jul 7, 2026) · current best: CA$19.49.
CYAN BRAIN player count & reviews
86% positive reviews in the last 30 days (90% all-time) · ~2 new reviews/day · 53 peak players in the last 30 days.
CYAN BRAIN — frequently asked questions
Where can I buy CYAN BRAIN at the cheapest price?
Right now the cheapest offer for CYAN BRAIN is CA$19.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price CYAN BRAIN has ever been?
The lowest price KingsPrice has tracked for CYAN BRAIN is CA$17.54 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play CYAN BRAIN?
CYAN BRAIN peaked at 53 concurrent players on Steam in the last 30 days (highest on Jul 11, 2026). The player chart on this page updates daily.
How can I get CYAN BRAIN at a discount?
Create a free price alert on this page and KingsPrice will email you when CYAN BRAIN drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10+
- Processor: inter Core i3
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 650 / AMD Radeon HD 7750(VRAM 1GB以上)
- DirectX: Version 11
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10+
- Processor: inter Core i3
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 650 / AMD Radeon HD 7750(VRAM 1GB以上)
- DirectX: Version 11
- Storage: 2 MB available space






