The Game Census
Staffer Case: A Supernatural Mystery Adventure cover art

Staffer Case: A Supernatural Mystery Adventure

Team Tetrapod · 2023-04-30

Steam

Adventure

Modes: Single player · Perspectives: Text

Releases: May 29, 2025 (Nintendo Switch), Apr 30, 2023 (PC (Microsoft Windows))

Staffer Case is a new sort of mystery game, asking players to find clues, arrange them into documents, and point out the contradictions between them to solve a series of murders. Each mystery unraveled leads you closer to the truth lying at the heart of each case!

Staffer Case: A Supernatural Mystery Adventure is an Adventure game released in 2023, priced at $9.51, with an estimated 100,000 .. 200,000 owners and a Very Positive review sentiment (94% of 4319 reviews).

20
playing now
94%
positive of 4.3k reviews
Very Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
platinum
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$9.51
steam price (US)

20 players in-game as of 2026-10-15 06:00 UTC (census sample)

Trailer

Staffer Case: A Supernatural Mystery Adventure trailer thumbnail

Staffer Case: A Supernatural Mystery Adventure - Official Nintendo Switch Launch Trailer

≈9,651 YouTube results for this game's trailer search

Health check

Healthy
  • · 20 players in-game at the last census sample.
  • · 550 reviews in the last 8 weeks (~69/week).
  • · Review velocity up 0% vs the prior 8 weeks.
  • · Top 6% of 29,028 Adventure games in the census by review count.
Estimated sales: 86k–194k copies

Review-multiple estimate from 4,319 total reviews — how this is computed.

All-time low: $7.31 at Steam (2025-09-29) · bundled 2×via IsThereAnyDeal

12-month high $16.99 · on sale 10 of 20 observed days (census price snapshots)

Review momentum

PositiveNegative
25225220232026Week of 2023-03-01: 176 positiveWeek of 2023-03-01: 6 negativeWeek of 2023-04-01: 153 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 224 positiveWeek of 2023-05-01: 1 negativeWeek of 2023-06-01: 116 positiveWeek of 2023-06-01: 5 negativeWeek of 2023-07-01: 252 positiveWeek of 2023-07-01: 8 negativeWeek of 2023-08-01: 121 positiveWeek of 2023-08-01: 6 negativeWeek of 2023-09-01: 52 positiveWeek of 2023-09-01: 2 negativeWeek of 2023-10-01: 59 positiveWeek of 2023-10-01: 4 negativeWeek of 2023-11-01: 55 positiveWeek of 2023-11-01: 3 negativeWeek of 2023-12-01: 51 positiveWeek of 2023-12-01: 8 negativeWeek of 2024-01-01: 50 positiveWeek of 2024-01-01: 3 negativeWeek of 2024-02-01: 36 positiveWeek of 2024-02-01: 2 negativeWeek of 2024-03-01: 38 positiveWeek of 2024-03-01: 3 negativeWeek of 2024-04-01: 44 positiveWeek of 2024-05-01: 196 positiveWeek of 2024-05-01: 15 negativeWeek of 2024-06-01: 250 positiveWeek of 2024-06-01: 22 negativeWeek of 2024-07-01: 187 positiveWeek of 2024-07-01: 9 negativeWeek of 2024-08-01: 173 positiveWeek of 2024-08-01: 6 negativeWeek of 2024-09-01: 124 positiveWeek of 2024-09-01: 16 negativeWeek of 2024-10-01: 92 positiveWeek of 2024-10-01: 8 negativeWeek of 2024-11-01: 69 positiveWeek of 2024-11-01: 11 negativeWeek of 2024-12-01: 88 positiveWeek of 2024-12-01: 5 negativeWeek of 2025-01-01: 72 positiveWeek of 2025-01-01: 5 negativeWeek of 2025-02-01: 59 positiveWeek of 2025-02-01: 2 negativeWeek of 2025-03-01: 99 positiveWeek of 2025-03-01: 10 negativeWeek of 2025-04-01: 67 positiveWeek of 2025-04-01: 9 negativeWeek of 2025-05-01: 40 positiveWeek of 2025-05-01: 5 negativeWeek of 2025-06-01: 42 positiveWeek of 2025-06-01: 6 negativeWeek of 2025-07-01: 78 positiveWeek of 2025-07-01: 8 negativeWeek of 2025-08-01: 69 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-09-01: 68 positiveWeek of 2025-09-01: 9 negativeWeek of 2025-10-01: 85 positiveWeek of 2025-10-01: 5 negativeWeek of 2025-11-01: 52 positiveWeek of 2025-11-01: 6 negativeWeek of 2025-12-01: 87 positiveWeek of 2025-12-01: 6 negativeWeek of 2026-01-01: 98 positiveWeek of 2026-01-01: 11 negativeWeek of 2026-02-01: 37 positiveWeek of 2026-02-01: 1 negativeWeek of 2026-03-01: 57 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 65 positiveWeek of 2026-04-01: 2 negativeWeek of 2026-05-01: 51 positiveWeek of 2026-05-01: 5 negativeWeek of 2026-06-01: 33 positiveWeek of 2026-06-01: 4 negativeWeek of 2026-07-01: 81 positiveWeek of 2026-07-01: 11 negativeWeek of 2026-08-01: 58 positiveWeek of 2026-08-01: 6 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

10902026-09-15 15:00 — 80 players2026-09-16 23:00 — 17 players2026-09-18 07:00 — 40 players2026-09-19 14:00 — 84 players2026-09-20 22:00 — 31 players2026-09-22 06:00 — 70 players2026-09-23 13:00 — 94 players2026-09-24 21:00 — 20 players2026-09-26 04:00 — 0 players2026-09-27 12:00 — 98 players2026-09-28 19:00 — 17 players2026-09-30 03:00 — 18 players2026-10-01 10:00 — 31 players2026-10-02 18:00 — 38 players2026-10-04 02:00 — 53 players2026-10-05 09:00 — 69 players2026-10-06 17:00 — 46 players2026-10-08 00:00 — 18 players2026-10-09 08:00 — 67 players2026-10-10 15:00 — 88 players2026-10-11 23:00 — 24 players2026-10-13 07:00 — 39 players2026-10-14 14:00 — 81 players2026-10-15 06:00 — 20 players
Concurrent players, hourly average, last 30 days (census samples).
9810Mar 2023Aug 2026Mar 2023 — avg 36 · peak 128May 2023 — avg 35 · peak 221Jul 2023 — avg 51 · peak 206Sep 2023 — avg 13 · peak 51Nov 2023 — avg 11 · peak 58Jan 2024 — avg 14 · peak 76Mar 2024 — avg 11 · peak 46May 2024 — avg 78 · peak 292Jul 2024 — avg 85 · peak 288Sep 2024 — avg 58 · peak 246Nov 2024 — avg 35 · peak 134Jan 2025 — avg 34 · peak 107Mar 2025 — avg 45 · peak 141May 2025 — avg 23 · peak 61Jul 2025 — avg 30 · peak 88Sep 2025 — avg 44 · peak 163Nov 2025 — avg 35 · peak 132Jan 2026 — avg 54 · peak 225Mar 2026 — avg 34 · peak 113May 2026 — avg 40 · peak 134Jul 2026 — avg 59 · peak 258Aug 2026 — avg 66 · peak 213
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$16.99$7.312023-03-102026-08-252023-03-10 — best price $10.192023-06-29 — best price $10.192023-08-07 — best price $10.192023-10-02 — best price $10.192023-11-21 — best price $10.192023-12-21 — best price $9.592024-02-12 — best price $10.192024-03-14 — best price $9.592024-04-30 — best price $9.232024-06-10 — best price $9.592024-06-27 — best price $8.992024-08-08 — best price $8.872024-09-18 — best price $8.392024-11-07 — best price $8.272024-11-27 — best price $8.152024-12-19 — best price $8.032025-01-23 — best price $7.912025-03-01 — best price $7.912025-03-13 — best price $7.792025-04-14 — best price $7.672025-06-26 — best price $8.392025-07-20 — best price $7.552025-09-02 — best price $7.432025-09-29 — best price $7.312025-10-08 — best price $16.992025-11-24 — best price $10.192025-12-18 — best price $10.532026-01-12 — best price $10.362026-02-19 — best price $10.192026-03-19 — best price $10.022026-04-06 — best price $10.022026-05-13 — best price $9.852026-06-25 — best price $9.852026-07-10 — best price $9.682026-08-25 — best price $9.51
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

10
achievements tracked
67.8%
earned "Case 1: Truth"
48.9%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSFull controller supportSingle-playerSteam AchievementsFull controller supportSteam Trading CardsSteam CloudFamily Sharing1 DLC

4 supported languages: Korean, English, Japanese, Simplified Chinese

Post-launch support: 1 DLC released, first 2023-06-30 (Steam store data)

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)47950%10

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

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

AnimeCrimeGothicPuzzleMysteryCartoonyStrategyAdventureDetectiveStory Rich

Census log

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

Recent updates

Players also track

Rusty Lake HotelOmensight: Definitive EditionUnforeseen IncidentsQuern - Undying ThoughtsBlacksad: Under the SkinThe Room 4: Old SinsTwin Mirror

Similarity via IGDB.

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