Mysterious School
Developed by DuoDuoDog · Published by DuoDuoDog
At a glance
Overview
A casual, indie, massively multiplayer game by DuoDuoDog, published by DuoDuoDog — single-player, multi-player, co-op, online co-op.
Steam’s own one-line description: “"Mysterious School" is a horror game that supports multi player online and single player. Why do girls often cry on campus at midnight? What happened to the once famous No.1 middle school? Take your partner, find out the truth that the young girl has become a zombie, and help the girl reincarnate.” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Mysterious School.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | Yes |
| Co-op | Yes |
| Online co-op | Yes |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Windows 7 (x64)
- Processor: Intel Core i3-4160
- Memory: 8 GB RAM
- Graphics: Nvidia Geforce GTX 960
- Storage: 6000 MB available space
Recommended
- OS: Windows 10 (x64)
- Processor: Intel Core i7-7700
- Memory: 16 GB RAM
- Graphics: Nvidia Geforce GTX 1060
- Network: Broadband Internet connection
- Storage: 8000 MB available space
Supported languages (8)
Mysterious School FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Mysterious School?
Steam classifies Mysterious School as a Casual, Indie, Massively Multiplayer, Free To Play game, developed by DuoDuoDog. "Mysterious School" is a horror game that supports multi player online and single player. Why do girls often cry on campus at midnight? What happened to the once famous No.1 middle school? Take your partner, find out the truth that the young girl has become a zombie, and help the girl reincarnate.
Is Mysterious School free to play?
Yes — Steam lists Mysterious School as Free to Play.
Is Mysterious School single-player or multiplayer?
Steam lists these modes for Mysterious School: Single-player, Multi-player, Co-op, Online Co-op. It supports both solo and multiplayer.
Is Mysterious School on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Mysterious School for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Mysterious School out yet?
Yes — Steam lists a release date of Feb 16, 2023.
What platforms is Mysterious School on?
Mysterious School is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Mysterious School single-player or multiplayer?
Steam lists these modes: Single-player, Multi-player, Co-op, Online Co-op.
How much does Mysterious School cost?
It's free to play, per Steam.
Does Mysterious School have achievements?
Yes — Steam lists 22 achievements for Mysterious School.
Who made Mysterious School?
Mysterious School is developed by DuoDuoDog and published by DuoDuoDog.
Where to get Mysterious School
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data. Not affiliated with Valve/Steam, DuoDuoDog.