The Game Census
Mysterious School cover art

Mysterious School

DuoDuoDog · 2023-02-16

Steam

CasualIndieMassively MultiplayerFree To Play

Modes: Single player, Multiplayer, Co-operative

Releases: Feb 17, 2023 (PC (Microsoft Windows))

"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.

37
playing now
36%
positive of 1.9k reviews
Mostly Negative
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
Unknown
Steam Deck (Valve)
SteamOS: 0
Free
steam price (US)

37 players in-game as of 2026-10-14 13:00 UTC (census sample)

Health check

Quietly active
  • · 37 players in-game at the last census sample.
  • · 162 reviews in the last 8 weeks (~20/week).
  • · Review velocity down 42% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (759 reviews).
  • · Top 5% of 29,056 Casual games in the census by review count.

Health tier since 2026-08-31

Review momentum

PositiveNegative
51951920232026Week of 2023-02-01: 139 positiveWeek of 2023-02-01: 49 negativeWeek of 2023-03-01: 16 positiveWeek of 2023-03-01: 26 negativeWeek of 2023-04-01: 4 positiveWeek of 2023-04-01: 5 negativeWeek of 2023-05-01: 4 positiveWeek of 2023-05-01: 6 negativeWeek of 2023-06-01: 1 positiveWeek of 2023-06-01: 2 negativeWeek of 2023-07-01: 1 positiveWeek of 2023-07-01: 1 negativeWeek of 2023-08-01: 1 positiveWeek of 2023-08-01: 1 negativeWeek of 2023-09-01: 4 positiveWeek of 2023-09-01: 2 negativeWeek of 2023-10-01: 5 negativeWeek of 2023-11-01: 3 negativeWeek of 2024-01-01: 1 negativeWeek of 2024-02-01: 2 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-03-01: 1 positiveWeek of 2024-04-01: 2 positiveWeek of 2024-05-01: 2 negativeWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 3 negativeWeek of 2024-09-01: 1 negativeWeek of 2024-10-01: 1 positiveWeek of 2024-10-01: 1 negativeWeek of 2024-11-01: 1 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 240 positiveWeek of 2024-12-01: 519 negativeWeek of 2025-01-01: 220 positiveWeek of 2025-01-01: 157 negativeWeek of 2025-02-01: 55 positiveWeek of 2025-02-01: 87 negativeWeek of 2025-03-01: 26 positiveWeek of 2025-03-01: 72 negativeWeek of 2025-04-01: 15 positiveWeek of 2025-04-01: 46 negativeWeek of 2025-05-01: 12 positiveWeek of 2025-05-01: 16 negativeWeek of 2025-06-01: 15 positiveWeek of 2025-06-01: 19 negativeWeek of 2025-07-01: 14 positiveWeek of 2025-07-01: 15 negativeWeek of 2025-08-01: 6 positiveWeek of 2025-08-01: 30 negativeWeek of 2025-09-01: 13 positiveWeek of 2025-09-01: 10 negativeWeek of 2025-10-01: 11 positiveWeek of 2025-10-01: 26 negativeWeek of 2025-11-01: 15 positiveWeek of 2025-11-01: 18 negativeWeek of 2025-12-01: 12 positiveWeek of 2025-12-01: 11 negativeWeek of 2026-01-01: 9 positiveWeek of 2026-01-01: 14 negativeWeek of 2026-02-01: 8 positiveWeek of 2026-02-01: 17 negativeWeek of 2026-03-01: 4 positiveWeek of 2026-03-01: 10 negativeWeek of 2026-04-01: 4 positiveWeek of 2026-04-01: 16 negativeWeek of 2026-05-01: 4 positiveWeek of 2026-05-01: 20 negativeWeek of 2026-06-01: 7 positiveWeek of 2026-06-01: 13 negativeWeek of 2026-07-01: 4 positiveWeek of 2026-07-01: 9 negativeWeek of 2026-08-01: 6 positiveWeek of 2026-08-01: 31 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

7502026-09-14 22:00 — 9 players2026-09-16 07:00 — 2 players2026-09-17 14:00 — 62 players2026-09-18 22:00 — 22 players2026-09-20 05:00 — 16 players2026-09-21 13:00 — 38 players2026-09-22 20:00 — 24 players2026-09-24 04:00 — 2 players2026-09-25 11:00 — 21 players2026-09-26 19:00 — 29 players2026-09-28 02:00 — 14 players2026-09-29 10:00 — 23 players2026-09-30 17:00 — 43 players2026-10-02 01:00 — 10 players2026-10-03 08:00 — 22 players2026-10-04 17:00 — 49 players2026-10-06 00:00 — 3 players2026-10-07 08:00 — 11 players2026-10-08 15:00 — 26 players2026-10-09 23:00 — 7 players2026-10-11 06:00 — 33 players2026-10-12 14:00 — 41 players2026-10-13 21:00 — 18 players2026-10-14 13:00 — 37 players
Concurrent players, hourly average, last 30 days (census samples).
7461Feb 2023Aug 2026Feb 2023 — avg 79 · peak 569Mar 2023 — avg 12 · peak 109Apr 2023 — avg 4 · peak 32May 2023 — avg 4 · peak 39Jun 2023 — avg 2 · peak 21Sep 2023 — avg 3 · peak 22Oct 2023 — avg 4 · peak 25Dec 2023 — avg 3 · peak 27Feb 2024 — avg 2 · peak 14Mar 2024 — avg 3 · peak 27Aug 2024 — avg 1 · peak 11Dec 2024 — avg 746 · peak 14,137Jan 2025 — avg 126 · peak 583Feb 2025 — avg 88 · peak 316Mar 2025 — avg 78 · peak 336Apr 2025 — avg 49 · peak 229May 2025 — avg 36 · peak 154Jun 2025 — avg 32 · peak 101Jul 2025 — avg 27 · peak 75Aug 2025 — avg 30 · peak 82Sep 2025 — avg 25 · peak 99Oct 2025 — avg 32 · peak 141Nov 2025 — avg 30 · peak 153Dec 2025 — avg 27 · peak 111Jan 2026 — avg 24 · peak 85Feb 2026 — avg 20 · peak 62Mar 2026 — avg 23 · peak 95Apr 2026 — avg 20 · peak 89May 2026 — avg 22 · peak 112Jun 2026 — avg 24 · peak 77Jul 2026 — avg 21 · peak 60Aug 2026 — avg 24 · peak 80
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Completion

22
achievements tracked
68%
earned "好奇心害死猫"
8.8%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerMulti-playerCo-opOnline Co-opLAN Co-opFamily Sharing

7 supported languages: English, Simplified Chinese, French, Italian, German, Russian, Japanese

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)1150%22

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

3DFPSRPGActionCasualMMORPGPuzzleMysteryThriller3D Platformer

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

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Similarity via IGDB.