Banner of Dupery: A Game of Solo Deduction

Dupery: A Game of Solo Deduction

by Gilded Rune Games · 15 Oct, 2026

95 downloads

Update Available
499 MB
2 weeks ago
5 days ago
CSF + Goldberg

About the Game

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 175+ 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.

Different Campaigns. One Syndicate.

Work your way through three campaigns set in distinct regions, each with its own unique mechanics and roles that alter your gameplay. Each region progresses you towards a final confrontation with the region’s syndicate general, where you will gain clues. Winning a region also unlocks new tiers of roles and quirks. Once you have unlocked all 9 tiers across every region, it’s time to enter the Syndicate's region and face the boss - a brutal final run drawing from everything you encountered on your way. It’s up to you to bring down the syndicate mastermind.

Key Features

  • Solo deduction roguelite with 175+ handcrafted roles

  • A reputation meter for you to protect as you make your arrests

  • 3 regions with their own unique mechanics and roles

  • Procedurally generated cases so no two runs play the same

  • Different roles, quirks and modifiers to choose from between missions

  • Notation toolkit to build your own in-game crime board

Screenshots

9 images
Dupery: A Game of Solo Deduction screenshot 1
Dupery: A Game of Solo Deduction screenshot 2
Dupery: A Game of Solo Deduction screenshot 3
Dupery: A Game of Solo Deduction screenshot 4
Dupery: A Game of Solo Deduction screenshot 5
Dupery: A Game of Solo Deduction screenshot 6
Dupery: A Game of Solo Deduction screenshot 7
Dupery: A Game of Solo Deduction screenshot 8
Dupery: A Game of Solo Deduction screenshot 9

Version Information

Update Required

Latest on Steam

SteamDB

Build 26408955

Released Nov 03, 2026

Current Release

Build 26207357

Uploaded Oct 31, 2026

Update already requested

Uploaders have been notified

A newer version is available but not yet uploaded

Help keep this updated

Login Required

You need to be logged in to request game updates. Would you like to go to the login page?

Request Update

Request an update for Dupery: A Game of Solo Deduction? This will notify uploaders that this game has an available update.

Request Submitted

Your update request has been submitted successfully! Uploaders will be notified.

Request Failed

Failed to submit update request:

System Requirements

OS Windows 10 or later
CPU Dual Core 2.5GHz
RAM 2 GB RAM
GPU N/A

How to Install

1
Download all files
2
Extract the .ZIP file to a folder (use WinRAR or 7-Zip)
3
Run Dupery.exe to play
Troubleshooting tips

• Run Redist/_CommonRedist installers if game won't start

• Add folder to Windows Defender exclusions

• Run as administrator

Download

Direct link available

Archive password

Needed when extracting (WinRAR / 7-Zip) — not a site login.

CRC32 C812120A
SHA-256 f654ef9415c246673ecd4ca71e57065305d223e131712ca7f231c327a328a422
How: Right-click the downloaded file → 7-Zip / WinRAR → CRC SHA → compare with the values above.

You May Also Like

View All

Download Dupery: A Game of Solo Deduction for PC with a direct link or via torrent. Get the full version of Dupery: A Game of Solo Deduction for free. Dupery: A Game of Solo Deduction is a Casual released by Gilded Rune Games.

Need help with installation or downloads?

Check our FAQ for common issues like passwords, extraction errors, and more.