Steam app 2128480 · updated 12 Sep 2026, 19:29 UTC
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!
718 hourly samples, with the daily peak drawn over them. Weekends are shaded.
43 months, March 2023 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 435 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 283 hourly samples. Each dip is a night. Weekends are shaded.
Staffer Case: A Supernatural Mystery Adventure was released on 30 Apr, 2023.
| Language | Full audio |
|---|---|
| Korean | |
| English | |
| Japanese | ● |
| Simplified Chinese | |
| Traditional Chinese |
A blank audio cell means full audio was not marked in the returned language list.
10 achievements in total.
49 developer announcements, May 2024 to Jul 2026 · times in UTC
Hello, this is Team Tetrapod. Staffer Retro : A Supernatural Mystery Quest is now officially available on Steam! In an island town where supernatural powers are part of everyday life, join Verita Retro as she traces past incidents tied to…
Team TetrapodHello, this is Team Tetrapod. There are now less than 30 hours left until the release of Staffer Retro : A Supernatural Mystery Quest. The Steam version will launch on July 23 at 00:00. Ahead of release, the final trailer is now available…
Team TetrapodThanks to your incredible support, the Steam Next Fest event for Staffer Retro: A Supernatural Mystery Quest has come to a successful close!We sincerely thank everyone who played the demo and shared their valuable feedback with us.To…
LinkStarDemo Voice Update Complete! & Crowdfunding NewsHello, this is Team Tetrapod.The Staffer Retro demo has been updated to Version 0.9.V1.This update includes the long-awaited Japanese voice acting, along with preparations for our upcoming…
Team TetrapodThanks to your help, we were able to safely apprehend the vile criminal. We sincerely appreciate it! As a result of this incident, Dice Eater has now become permanently free to play!A special event is currently underway for those who…
Team TetrapodOur one-day X account manager has, unfortunately, caused a major incident and fled the scene. We desperately need your help to clean up this mess. Please check the official Staffer Series X account and assist us in catching the culprit!…
Team TetrapodFor today only, April 1, a rather suspicious special guest has taken over the official Staffer Series X account! Apparently, they’ve prepared a very special gift for both longtime fans and those just discovering the series, so be sure to…
Team TetrapodDevelopment of the Nintendo Switch version for Staffer Retro : A Supernatural Mystery Quest has been confirmed, along with a crowdfunding announcementHello, this is Team Tetrapod. We are pleased to share some new updates regarding Staffer…
Kniro\Hello everyone, it's been a while. Thanks to the many pieces of feedback we received from our Discord community, Staffer Case has returned in a more complete form!\Fixed several typos in JapaneseFixed an issue where previous entries…
Patch notesStaffer Case: A Supernatural Mystery AdventureSteam sales reach 100,000 copies!Thank you to all our fans for your support!♥️
linkstarThe perfect opportunity to binge the Staffer Series universe! Don't miss out.Our first title, “Staffer Case: A Supernatural Mystery Adventure”, our second title “Staffer Reborn”, and our upcoming new release scheduled for 2026, “Staffer…
LSHello everyone, Thank you for playing the Act 1 Demo of Staffer Retro: A Supernatural Mystery Quest released on December 5. We truly appreciate the time you spent with our game. Until now, the demo was distributed without a dedicated page…
Team TetrapodTeam Tetrapod and Gamepia are excited to announce three major updates for the supernatural deduction adventure 『Staffer Retro: A Supernatural Mystery Quest』: a newly updated key art, the second official cinematic trailer, and a free…
Team TetrapodHello, fans of the Staffer series.The end of 2025 is approaching.Looking back on this year, we, Team Tetrapod, feel it has been a truly happy one. We were able to present you with many works that would have been unimaginable in the past…
LSWe are heading to Gamescom Asia 2025!Our upcoming title, Staffer Retro, will be showcased at Gamescom Asia 2025 with a playable demo version currently in development. This exhibition is made possible thanks to the BIGEM Support Program. At…
LSFixed an issue where certain text lines were displayed lower than intended.Fixed an issue where voice playback did not function in the backlog.Resolved an issue where some characters were not displayed properly in certain…
Patch notesThis update addresses an issue caused by recent font changes. - Resolved an error where certain Simplified Chinese characters were displayed incorrectly.
Patch notesImproved UI and full Japanese voice acting coming on October 8th!A big hello from Team Tetrapod. Thank you all for the continued interest and support. We're excited to announce a new update based on all the feedback we've gathered from our…
Team Tetrapod🎮 Staffer Series 3.0 Update Beta Play Recruitment! October 3rd, 6 PM ~ Until the update on October 8th ✨ - Staffer Case - Staffer Reborn 1. Right-click on the desired game in your Steam Library and select 'Properties'. 2. Go to the 'Betas'…
Team TetrapodImproved UI and full Japanese voice acting coming on October 8th!A big hello from Team Tetrapod. Thank you all for the continued interest and support. We're excited to announce a new update based on all the feedback we've gathered from our…
LSWe, Team Tetrapod’s latest game, Staffer Retro, now has its Steam page live! 🚀In this title, you’ll follow the story of Verita Retro, a girl retracing the history of supernatural powers. Add the game to your Steam wishlist and follow the…
LSDice Eater Officially Released!Hello from Team Tetrapod!As of July 1st at midnight(KST), Dice Eater—the third title and second spin-off of the STAFFER series—is now officially available!This first half of the year has been filled with new…
LSHello, this is Team Tetrapod. Thank you so much for your patience and support! STAFFER CASE: A Supernatural Mystery Adventure for Nintendo Switch will be available to play starting tonight at 11:59 PM (KST). This Nintendo Switch version of…
LS{STEAM_CLAN_IMAGE}/42884809/a5a6f93c3ae0a679d2d0866e1e3177361f0a485f.png Check out the character voice before releasing the Nintendo Switch version. The Nintendo Switch version is available in advance on each country's Nintendo eShop. Don't…
LSStep into the world of "Staffer Case: Nintendo Switch Edition" starting today, May 15th! Get ready to dive into an immersive experience with our special release on Nintendo Switch. Here's what you can expect: 1️⃣All characters voiced by…
LSv. 2.1.11 - Improved presentation, including text color changes - Improved typos in Traditional Chinese (Windows)
Patch notesDice Eater, the second spinoff of the Staffer Series, is out today. Figure out what sort of supernatural tricks your opponent is up to in this card game of the supernatural in order to win your prize!…
Team TetrapodThe release date for the second spin-off of the STAFFER series, Dice Eater, is here. March 11, 2025 6:00 AM (PDT) https://store.steampowered.com/app/3360110/
Team Tetrapod- Fixed a bug in Case.1 that caused the story to repeat when trying certain combinations - Fixed Case.1 Traditional Chinese typos and errors
Patch notes{STEAM_CLAN_IMAGE}/42884809/5ad2942746355252e083b917b949d91aa356720f.png Dice Eater, the mystery card game centered around supernatural powers, has opened up its Tumblbug crowdfunding campaign as of January 28th at 1:00 PM KST (11 PM EST).…
LS{STEAM_CLAN_IMAGE}/42884809/1068a36906daf85f6dcc74f105785343ddc49d10.png An early demo version of our new spin-off, Dice Eater, will be released for free on 28 January to coincide with the start of our crowdfunding campaign. We'd love for…
LS{STEAM_CLAN_IMAGE}/42884809/fc46f282f90a2dc30e10fead3c8b4aab00a8fe61.png {STEAM_CLAN_IMAGE}/42884809/fcfa95e8c90b53c2165496a22606e557593c3044.jpg We're teaming up with Shinsegae I&C to participate in the 2025 Taipei Game Show! We’re…
LS{STEAM_CLAN_IMAGE}/42884809/fc46f282f90a2dc30e10fead3c8b4aab00a8fe61.png Welcome to 2025! Greetings, beloved fans! This is Team Tetrapod! 🎉 Thanks to your incredible support and love, we're thrilled to celebrate our 2nd anniversary! What…
LSThe console distribution contract for “Staffer Case” & “Staffer Reborn” has been finalized! will be in charge of distribution. We hope this will give more people the opportunity to experience the Staffer series!…
KniroWelcome. We're Team Tetrapod, We'd like to hear your feedback on the next developments in the Staffer series. We'd really appreciate it if you could fill out the survey at the link below. https://forms.gle/cT4GMh8p7MSxijHT7…
KniroStafferCase will be exhibiting at G-STAR2024. We look forward to your participation! When: Nov. 14 ~ Nov. 17 Location: BEXCO Exhibition Center 2 Booth: Indie Showcase A-13…
KniroChina's largest indie games expo to take place on November 16-17 At WePlay 2024 and will be available at WePlay 2024! Join the event and get a special badge! https://www.weplaymore.com/…
Kniro{STEAM_CLAN_IMAGE}/42884809/4f15cdceb72050a1f62cdfed8d48136fcee653d2.png StafferSeries BGM Play Broadcasting~ for TGS
garagesoft16"StafferCase is pleased to announce that we will be exhibiting at Tokyo Game Show in the Gyeonggi Pavilion. Tokyo Game Show is the largest game show in Japan, taking place from September 26th to 29th at the Makuhari Messe International…
Kniro{STEAM_CLAN_IMAGE}/42884809/4f3ba70a9349c78d0c48987b82860f18611509b4.png Staffer Reborn won the award at BIC2024, an indie game festival held in Busan, Korea! Thank you so much for your support! -Corrected typos in simplified Chinese
Kniro{STEAM_CLAN_IMAGE}/42884809/04b24bd28e5ea2b4ef4f1adfeadeddf7328ccbe3.png v 2.1.12 -Updated store page -Fixed typos in Korean and Chinese
Patch notes{STEAM_CLAN_IMAGE}/42884809/64875f669d93a659adf21f53b017b4375e85fa87.png Describe your experience using Steam Deck v 2.1.11 Controller Support: Satisfactory Resolution Support: Satisfactory Text input: Disable text input Default…
Kniro{STEAM_CLAN_IMAGE}/42884809/dd257afe421045590cb1f7c442f67beede8e6672.png v 2.1.11 -Support for controller controls basics. -Added support for "Steam Deck" basics. -Added UI support for controls. -Text is now 1.5x sharper -The magnifying…
Kniro. Magnifier feature update! You can now magnify small text with a right click. {STEAM_CLAN_IMAGE}/42884809/6b03cab3658299c90c7bc9e1491e3b58214d65fc.png -Fixed an error that was causing frames to be set to 30fps in some environments -Some…
Knirov2.1.9 -Fixed an issue where the title button was not visible when entering the settings after changing language -Improved translation of Chapter 5 descriptions
Patch notesv2.1.9 -Fixed a bug in Case.3 that prevented progress when an error occurred -Fixed Case.5, Side.1 time display error -Fixed some staging -Fixed incorrect description of Case.5 in Traditional Chinese -Some other translation improvements
Patch notesv 2.1.8 - Upgraded the quality of some example images - Fixed some Japanese translations, - Fixed a click-related bug from v 2.1.7 - Enforced vertical synchronization
Patch notesEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| 스테퍼 케이스 - 아트북 | Windows | 30 Jun 2023 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | StafferCase.app | macos | ||
| Launch | StafferCase.exe | windows |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Kniro/StafferCase/NaninovelData/Saves | * and below |
WinAppDataLocalLow | com.Kniro.StafferCase | * and below |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG