Game · Shoei Sio
Cyan Heart
A psychological horror adventure experienced through a "selfie-cam" perspective. Contradictions in the timeline, subtle anomalies in the footage—every detail holds the key to the truth.
Before you buy
- Redeem on
- Steam clientPC: Windows. Needs a free Steam account.
- Activates in
- Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
- You get
- A digital activation keyStandard edition. No disc, no box.
- Delivery
- To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.
Trailers and screenshots
About this game
Cyan Heart is a unique “selfie-perspective” horror exploration puzzle adventure.
Guiding a girl who keeps filming herself, you’ll solve puzzles, avoid hazards, and lead her to her goal with the distinctive challenge of having no direct view of the path ahead—checking behind and below her only through the camera’s screen.
A World Dyed Cyan
Life in this world once relied on a peculiar energy called the Magenta Heart—a power that could eternally mimic any physical phenomenon.
Mimic the heat of a flame, and it would become a heat source that burned forever at a constant temperature.
Mimic a heavy blow, and it would turn into a rock drill that never stopped working.
But one day, this energy transformed into a cyan hue.
Known thereafter as “Cyan”, it remained functional yet unstable, and became a dangerous force that turned any tangible object into cyan matter.
Its influence warped both machines and living beings alike.
To the Depths of an Abandoned Facility
Rumors speak of something hidden within a facility that could halt Cyan’s spread.
Alone, the girl sets foot inside.
Due to Cyan’s “eternal” property, the seemingly deserted facility still behaves as if its long-gone occupants remain.
You must guide her through the camera, avoiding—or at times exploiting—Cyan’s mimicked phenomena, to retrieve the mysterious object said to lie at the very end.
The Recording Device "CSZ8x2"
The girl’s multi-functional camera, CSZ8x2, can record video, enable voice communication, and log data.
Pointing the camera at objects allows her to examine them or access machinery.
Hints can be received through voice transmissions from her companions.
Sometimes, looking up or down with the camera will be crucial.
Why is the girl exploring alone?
What is this thing she seeks?
And what is the true nature of Cyan?
You will discover the answers through the lens she holds.
＿＿＿＿＿＿Witness the record she wished to leave behind.
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Streaming & Content Creation Guidelines
Streaming, recording, and monetization are 100% allowed without restrictions. A link to this Steam page in your description is greatly appreciated!
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Description, images and details are taken from this product's Steam page.
Details
- Developer
- Shoei Sio
- Publisher
- Shoei Sio
- Released
- 8 Oct, 2026
- Genres
- Adventure, Horror, Indie
- Runs on
- Windows
- Activates on
- Steam client, Europe and UK
- Interface
- English, Japanese, Simplified Chinese, Traditional Chinese, Russian, Spanish - Spain, Portuguese - Brazil
- Controller
- Full controller support
- Single-player
- Steam Achievements
- Full controller support
- Camera Comfort
- Custom Volume Controls
- #category_playable_at_your_own_pace
- Playable without Timed Input
- Stereo Sound
- Surround Sound
- Steam Cloud
- Family Sharing
System requirements
Windows
- Requires a 64-bit processor and operating system
| Component | Minimum | Recommended |
|---|---|---|
| OS | Windows 10,11 | Windows 10,11 |
| Processor | Intel Core i3-8100 / AMD Ryzen 3 3200G | Intel Core i5-9400F / AMD Ryzen 5 3600 |
| Memory | 8 GB RAM | 16 GB RAM |
| Graphics | GTX 750 Ti / Intel UHD 630 | GTX 1650 / AMD RX 570 |
| Storage | 2 GB available space | 2 GB available space |
Activating it on Steam client
- Open the Steam client and sign in.
- Choose Games in the top menu, then Activate a Product on Steam.
- Paste the key and confirm. It appears in your library.
The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.