Dupery: A Game of Solo Deduction
Genres: Puzzle, Mystery
Play modes: singleplayer
Release Date: 15-10-2026
Developer: Gilded Rune Games
Our verdict
7.5/10
- Difficulty: Hard
- Players: 1
- Playtime: 10–20 h
Dupery: A Game of Solo Deduction is a single-player social deduction puzzle set in a noir city overrun by a criminal syndicate. Each case is a board of characters with hidden roles, many of whom lie; you gather their statements, work out who is innocent, and expose the criminals step by step toward the head of the network. New zones add new roles and rules. It suits solo players who love Werewolf, Mafia or Blood on the Clocktower logic.
Steam reviews are very positive (about 84% of 853). Players describe it as Minesweeper mixed with Mafia, praise the art, music and quality-of-life tools, and say each board tells its own story. Fans stress that it is genuinely hard and that patient play beats guessing.
The dividing issue is randomness: several reviewers say some boards end in a 50/50 guess because the misinformation is too strong, and one switched to positive only with that warning. The music can wear thin over long sessions. Expect 10 hours or more. If you enjoy demanding logic with some roguelike luck, buy it.
Pros
- Solo Werewolf-style deduction with hidden roles and liars
- New zones keep adding roles and mechanics
- Polished art, music and note-taking tools
Cons
- Some boards come down to a forced guess
- Liar roles can feel too strong
- Music grows repetitive in long sessions
About
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
