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Steam app 4111760 · updated 12 Sep 2026, 19:45 UTC

Dupery: A Game of Solo Deduction Demo

The demo for Dupery! A solo deduction roguelite with over 200 roles, set in a noir city run by a criminal syndicate. Investigate everyone, make arrests and protect your reputation. Take down the syndicate and don’t get duped like the rest. Everyone is a suspect, trust no one. No friends required.

Dupery: A Game of Solo Deduction Demo Steam header artwork
Gilded Rune GamesYogscast Games, Gamersky Games
46playing now
8824-hour peak
333all-time peak
47average, last 30 days

The last 30 days

−14Gain−22.97%% gain99Peak

720 hourly samples, with the daily peak drawn over them. Weekends are shaded.

027538010713 Aug18 Aug23 Aug28 Aug02 Sep07 Sep12 SepThursday 13 August 202670 peakFriday 14 August 202699 peakSaturday 15 August 202677 peakSunday 16 August 202698 peakMonday 17 August 202682 peakTuesday 18 August 202680 peakWednesday 19 August 202674 peakThursday 20 August 202670 peakFriday 21 August 202682 peakSaturday 22 August 202668 peakSunday 23 August 202671 peakMonday 24 August 202674 peakTuesday 25 August 202660 peakWednesday 26 August 202661 peakThursday 27 August 202653 peakFriday 28 August 202651 peakSaturday 29 August 202660 peakSunday 30 August 202655 peakMonday 31 August 202657 peakTuesday 01 September 202642 peakWednesday 02 September 202645 peakThursday 03 September 202657 peakFriday 04 September 202664 peakSaturday 05 September 202690 peakSunday 06 September 202673 peakMonday 07 September 202678 peakTuesday 08 September 202675 peakWednesday 09 September 202694 peakThursday 10 September 202689 peakFriday 11 September 202679 peakSaturday 12 September 202688 peak
Daily peakEvery hourly sample

All time

12 months, October 2025 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.

090180270360Oct 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026October 202523 monthly peakNovember 202524 monthly peakDecember 202515 monthly peakJanuary 202615 monthly peakFebruary 202611 monthly peakMarch 20268 monthly peakApril 20267 monthly peakMay 202611 monthly peakJune 2026333 monthly peakJuly 2026184 monthly peakAugust 2026171 monthly peakSeptember 202694 monthly peak
Monthly peak

The last four months

Show:

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.

05099149199July 2026August 2026September 2026October 2026July 2026184 peak — daily detail belowAugust 2026171 peak — hourly detail belowSeptember 202694 peak — hourly detail below
Monthly peakHas finer data

July 2026

31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

0509914919901 Jul06 Jul11 Jul16 Jul21 Jul26 Jul31 JulWednesday 01 July 2026138 peakThursday 02 July 2026164 peakFriday 03 July 2026162 peakSaturday 04 July 2026165 peakSunday 05 July 2026149 peakMonday 06 July 2026117 peakTuesday 07 July 2026138 peakWednesday 08 July 202697 peakThursday 09 July 2026122 peakFriday 10 July 2026125 peakSaturday 11 July 2026147 peakSunday 12 July 2026163 peakMonday 13 July 2026184 peakTuesday 14 July 2026165 peakWednesday 15 July 2026156 peakThursday 16 July 2026135 peakFriday 17 July 2026131 peakSaturday 18 July 2026115 peakSunday 19 July 2026116 peakMonday 20 July 2026110 peakTuesday 21 July 2026124 peakWednesday 22 July 2026125 peakThursday 23 July 2026130 peakFriday 24 July 2026119 peakSaturday 25 July 2026121 peakSunday 26 July 2026107 peakMonday 27 July 202688 peakTuesday 28 July 2026149 peakWednesday 29 July 2026113 peakThursday 30 July 2026102 peakFriday 31 July 2026107 peak

August 2026

31 days as the curve, each the highest figure that day. Behind it, 437 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

0469213918501 Aug06 Aug11 Aug16 Aug21 Aug26 Aug31 AugSaturday 01 August 2026137 peakSunday 02 August 2026107 peakMonday 03 August 2026106 peakTuesday 04 August 202695 peakWednesday 05 August 202682 peakThursday 06 August 2026171 peakFriday 07 August 2026146 peakSaturday 08 August 2026133 peakSunday 09 August 2026134 peakMonday 10 August 2026113 peakTuesday 11 August 2026100 peakWednesday 12 August 202693 peakThursday 13 August 202688 peakFriday 14 August 202699 peakSaturday 15 August 202677 peakSunday 16 August 202698 peakMonday 17 August 202682 peakTuesday 18 August 202680 peakWednesday 19 August 202674 peakThursday 20 August 202670 peakFriday 21 August 202682 peakSaturday 22 August 202668 peakSunday 23 August 202671 peakMonday 24 August 202674 peakTuesday 25 August 202660 peakWednesday 26 August 202661 peakThursday 27 August 202653 peakFriday 28 August 202651 peakSaturday 29 August 202660 peakSunday 30 August 202655 peakMonday 31 August 202657 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 283 hourly samples. Each dip is a night. Weekends are shaded.

025517610201 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 202642 peakWednesday 02 September 202645 peakThursday 03 September 202657 peakFriday 04 September 202664 peakSaturday 05 September 202690 peakSunday 06 September 202673 peakMonday 07 September 202678 peakTuesday 08 September 202675 peakWednesday 09 September 202694 peakThursday 10 September 202689 peakFriday 11 September 202679 peakSaturday 12 September 202688 peak

October 2026

Dupery: A Game of Solo Deduction Demo was released on 24 Oct, 2025.

Not out yet.There is nothing to draw for this month.
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Free to playUpdated 12 Sep 2026, 19:45 UTC
App ID
4111760
Last updated
11 Sep 2026 build 25253202
Product type
Demo
Developer
Gilded Rune Games
Publisher
Yogscast Games, Gamersky Games
Release date
24 Oct, 2025
Platforms
WindowsmacOS
Download size
393 MB396 MB
Install size
1.47 GB1.49 GB
Genres
Casual, Indie, Strategy
Game modes
Single-player
Controller support
Full

Features & support

Steam features

Game demoMouse Only OptionSubtitle OptionsSteam Cloud

Controllers & input

Full controller supportDualShock Controller SupportDualSense Controller Support

Accessibility

Camera ComfortCustom Volume ControlsPlayable without Timed InputSave AnytimeStereo Sound

Popular tags

StrategyDetectiveNoirMysteryPuzzleCasualRogueliteCard GameInvestigationLogicCrimeSingleplayerIndie2DControllerTutorial
About this gameFull description from Steam
This is the demo for Dupery! Explore three quirk challenge modes in this demo along with rotating special sets and around 40 out of the 200+ roles!. Put on your thinking caps and see how many cases you can solve! Dupery is a solo deduction game set in a noir city infiltrated by a powerful criminal syndicate. Take on the role of a detective, hunt down the syndicate criminals and uncover the head of the network. Explore individual cases, investigate roles - many of whom will be lying - and weed out the evil. There are 4 categories of roles - Innocent, Meddler, Underling and Traitor - with over 200 individual roles you will come across in your cases. Use your detective skills and a healthy amount of distrust for everyone to arrest the syndicate members as you traverse regions, all while maintaining your reputation and evading their attempts to deceive you. Avoid wrongful arrests, or you could lose your job. Interrogate, Review, Arrest Cases are procedurally generated on a grid containing a mix of good and evil roles. To solve a case, use clues provided by the characters and deduce whose stories are not quite checking out. Underlings lie, Traitors are worse, and even the well-meaning may be tainted. Cross reference what you hear, compile imperfect information using strings, pins and pen on your detective board and make your arrests. From the Mathematician who will announce the sum of all evil role addresses, to the critic who causes your reputation loss to be doubled, it’s up to you to investigate them and make the right decisions. Your Reputation Is on the Line Progress through areas by completing cases, building your way towards the final boss confrontation. Arresting good-aligned roles will reduce your reputation - letting it fall too low will get you fired. Arresting all evil roles counts as solving the case and will increase your reputation, allowing you to pick the next case to solve. Choose which roles to add to your cases in between missions, along with acquiring quirks and modifiers that will shape your runs.
Content & age ratings2 regional ratings

Regional ratings

DEJUS14Violência · Drogas lícitas · Atos criminosos
IGRS18Rokok dan/atau rokok elektronik, minuman beralkohol, narkotika, psikotropika, dan/atau zat adiktif lainnya · Kekerasan
System requirementsMinimum and recommended hardware

Minimum

Minimum: OS: Windows 10 or later Processor: Dual Core 2.5GHz Memory: 2 GB RAM Storage: 500 MB available space

Recommended

macOS

Minimum: OS: macOS Processor: Dual Core 2.5GHz Memory: 2 GB RAM Graphics: AMD Radeon Pro 450 Storage: 550 MB available space
Supported languages6 languages
LanguageFull audio
English
Japanese
Korean
Simplified Chinese
Thai
Traditional Chinese

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

No announcements. Nothing has been posted about this game on Steam.

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