Who it suits
Choose this for a psychological mystery that makes the protagonist's interpretation of events part of the problem. Its delusion-focused presentation and violent crime scenes suit readers seeking a darker Science Adventure story.
Before playing
This page covers the official English Steam release of NOAH. Read the publisher's warnings about graphic violence and sexual material before deciding whether its tone suits you.
Story and setting
A reclusive student in Shibuya receives an image linked to a series of killings, then encounters a scene that appears to match it.
Reading and interaction
Choose this for a psychological mystery that makes the protagonist's interpretation of events part of the problem. Its delusion-focused presentation and violent crime scenes suit readers seeking a darker Science Adventure story.
Where to start
This page covers the official English Steam release of NOAH. Read the publisher's warnings about graphic violence and sexual material before deciding whether its tone suits you.
Official edition
This page covers the CHAOS;HEAD NOAH Steam edition. Check the official store for the current price and any separately sold extras. Platforms, languages, and availability refer to this specific release.
Where to read it
Platforms, languages, and pricing belong to each specific edition.
Steam edition
Paid · Full / base game
Windows · English, Japanese
Reading time not verified · Checked 2026-09-15Sources & verification
store.steampowered.com ↗ — Publisher description, edition identity, supported languages, platforms, release status, price type, and content information.Checked 2026-09-15
Editorial descriptions summarize the reading experience. Availability can change; the official release is the final reference.
