Cyan Heart

Cyan Heart is developed by Shoei Sio and published by Shoei Sio, released on Oct 8, 2026.

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. Reconstruct her fragmented records, and uncover what was truly left behind.

Basic Information

Store page feature tags: 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.

Official Introduction Key Points

1. 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.
2. A World Dyed Cyan
3. 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.
4. 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.
5. To the Depths of an Abandoned Facility
6. 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.
7. The Recording Device “CSZ8x2”
8. 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.

Minimum System Requirements (Windows)

- Requires a 64-bit processor and operating system
- OS: Windows 10,11
- Processor: Intel Core i3-8100 / AMD Ryzen 3 3200G
- Memory: 8 GB RAM
- Graphics: GTX 750 Ti / Intel UHD 630
- Storage: 2 GB available space

Achievement Highlights

• Commencing the record…
• Even if I couldn’t be a replacement
• I’m glad I was a fake
• Because I was able to make this choice
• Observer: Sarah Pärt

Official Screenshots

This page’s gallery section collects all 8 official screenshots of Cyan Heart.

The content above is from publicly available data on the Steam store page. In case of any discrepancies with the store page, the store page shall prevail.