PROTOCOL: NOAH is targeting a November 2026 release on Steam, with its price still undecided. The developer announced a teaser website on October 21 for the single-player visual novel, listing Windows and macOS as planned platforms.
The story is built around a repeating five-day period. Conversations change character parameters, while a separate adjustment mechanic can move selected parameters more sharply. Those choices lead to different endings, making the loop part of the game’s structure rather than simply its setting.
The developer lists 13 endings and more than 200 illustrations, with movement added through a 2.5D presentation. Those are specifications in the announcement, not findings from a completed review. The planned language list includes Japanese, English, simplified and traditional Chinese, and Korean.
The release also says the game is taking part in Steam Next Fest and provides its store and teaser links. It does not give a final November launch day or a selling price. Readers interested in trying or buying the game should use those official channels for current availability and updated specifications, rather than treat the launch window as a confirmed date.
PROTOCOL: NOAHは11月発売予定、日付・価格は未定
開発元は10月21日にティザーサイトを発表。SteamのWindows・macOS向け1人用作品で、11月発売予定ですが発売日と価格は未定です。5日間の繰り返しと選択による分岐、13エンディングを案内。英語などの対応予定も示しています。
出典：PROTOCOL: NOAH developer official release 000000006.000181021 via PR TIMES