Cyan Heart launched on PC via Steam on October 9, 2026, and a Switch version is in development. The horror exploration puzzle game is played from a selfie perspective in which the player never sees what is ahead of protagonist Sara.
Cyan Heart is a horror exploration puzzle game built around a single camera constraint. The player controls Sara, a girl in an ushanka who films herself continuously, so her own figure and whatever stands behind her fill the screen while her front stays out of view. Solo developer Shoei Sio announced the game on September 14, 2026 with an October 9 release date, a demo already on Steam, and a price of 1,300 yen. A Nintendo Switch version was planned through Wakuwaku Games.
The game launched on Steam on October 9, 2026, and the Switch version moved into development. The constraint is the design: players cannot look straight ahead, so they read the scene behind Sara, her feet, and her frightened expression to move through gimmicks and puzzles toward the deepest part of a ruined facility, where a dangerous energy called Cyan waits.
Sio, a university student majoring in design, has said he kept the selfie camera because he wanted the act of taking selfies to carry meaning in the story. His first Steam release was the 2021 title Tatarian aster. The setting is a world once sustained by an energy called Magenta Heart, which mimicked physical phenomena forever, then turned cyan and began turning anything with form cyan as well, driving living things and machines mad.
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Shoei Sio's horror adventure Cyan Heart launched on Steam on October 9, 2026. The game fixes the view to the handheld camera scene of protagonist Sara, a girl in an ushanka exploring a ruined facility. Players cannot look straight ahead, so they read the scene behind her, her feet, and her frightened expression to move through gimmicks and puzzles toward the deepest part, where a dangerous energy called Cyan waits.
Developer Shio Seiei released Cyan Heart for PC via Steam on October 9. The horror exploration puzzle game uses a selfie perspective: players see only the protagonist girl and what is behind her, never what is ahead. A Switch version is in development. The protagonist, Sara, wears an ushanka and enters an abandoned facility to stop a cyan entity called Cyan.
Solo developer Shoei Sio announced on September 14, 2026 that Cyan Heart will be released on October 9, 2026. The game is a horror exploration puzzle adventure played from a selfie perspective: the player controls a girl who films herself continuously with a camera, so her own figure and whatever stands behind her fill the screen while her front stays out of view. A demo is available now on Steam, where the game is priced at 1,300 yen. A Nintendo Switch version is also planned through Wakuwaku Games. The setting is a world once sustained by an energy called Magenta Heart, which mimicked physical phenomena forever, then turned cyan and began turning anything with form cyan as well, driving living things and machines mad. The girl enters an abandoned facility rumored to hold something that stops that erosion and works toward the deepest part.