High School Dirty Secrets (2025)

Developer: Mitsuki Game Studio
Publisher: JanduSoft
Platforms: Windows
Genres: Action, Adventure, Indie
Rating: 4.8 of 5, 50 player ratings
Typical playtime: about 3.6 hours
Where to get it: Steam

The 3D catalog: game boxes on wooden shelves, with the cat sitting at the counter next to its greeting.

The catalog in 3D

The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.

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How it feels

A tense exploration of a haunted school, uncovering secrets to escape.

hauntedsuspensefulexplorationsurvivalmysterioustensestory-drivenatmospheric

What players say

Players praise the puzzle design and the smartphone-driven exploration, but split on whether the ecchi content helps or hurts the horror. The game is short, around 2-4 hours, and has some bugs that can stretch playtime. A few reviews note reused assets from Yandere Simulator.

Screenshots

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This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.