Steam

<Kobako> Night Detention | 夜の居残り

Also known as <Kobako> Night Detention | 夜の居残り, knd, kobako night detention

A haunted quiz game where your grades aren’t the only thing that can kill you. Another strange post from the town of Akabako.

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Last update

18 May 2026

Latest update

AnnouncementPublished 09 Jun 2025

Just cracked open the box. Kōbako is live. 🟥

Kōbako (コウバコ) is a tiny indie game studio in a little red box. We restore files from an anonymous message board thread in a small town called Akabako (赤箱, “Red Box”) a place where rumors, regrets, and strange things kee…

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