Dupery: A Game of Solo Deduction is a single-player deduction roguelite set in a dark, crime-ridden city controlled by a powerful syndicate.

A Noir Detective Game
With more than 175 unique roles to uncover, every case puts detective skills, careful observation, and a bit of suspicion to the test. The goal is simple: expose the criminals, make the right arrests, and bring down the organization without ruining a detective career along the way. Nobody is above suspicion, and trusting the wrong person can quickly turn a case upside down.
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Investigate Suspects and Uncover the Truth
Every case in Dupery takes place on a procedurally generated grid filled with a mix of innocent characters and dangerous criminals. Information comes from the people encountered during an investigation, but not every statement can be trusted. Some characters hide their true intentions, while others create confusion without necessarily being part of the syndicate.
Dupery: A Game of Solo Deduction features four main role categories: Innocent, Meddler, Underling, and Traitor. Across more than 175 handcrafted roles, each character brings different clues, abilities, and challenges to the investigation. Identifying them requires more than listening to what they say. Their claims need to be compared, inconsistencies spotted, and evidence pieced together before making a decision.
The detective board is where everything comes together. Strings, pins, notes, and other tools help organize the available information and connect the dots. Certain roles add interesting twists, too. The Mathematician reveals the sum of the addresses belonging to evil roles, while the Critic doubles the reputation penalty for mistakes. Details like these make each investigation feel different and reward a careful approach.
Protect Your Reputation While Taking Down the Syndicate
Getting through a case means finding every evil role without arresting the wrong people. Taking down all the criminals completes the investigation and boosts reputation, opening the way to another case. Arresting innocent characters, however, damages that reputation. Let it drop too far, and the detective loses the job.
Progression takes place across several areas, with each completed case bringing the final confrontation closer. Between missions, different roles can be added to upcoming investigations, while quirks and modifiers introduce extra conditions that influence each run. These choices help shape the experience and give each attempt its own challenges.
The balance between gathering evidence and acting on it is one of Dupery’s most engaging elements. Moving too quickly can lead to costly mistakes, but taking the time to examine every clue can reveal the lies hiding beneath seemingly ordinary conversations. With so many possible roles and case combinations, staying alert is always worth the effort.
Three Campaigns, One Criminal Organization
Dupery features three campaigns set in separate regions, each with its own mechanics and selection of roles. Every region builds towards a showdown with its syndicate general, and winning these encounters provides clues that help uncover the larger criminal network. Completing a region also unlocks additional tiers of roles and quirks, expanding the options available for future runs.
Once all nine tiers across the three regions have been unlocked, the syndicate’s own territory becomes accessible. This final stretch brings together the mechanics, roles, and challenges encountered throughout the game in a demanding run against the mastermind behind the operation. Reaching the end requires a solid understanding of the clues, a sharp eye for deception, and enough discipline to avoid unnecessary arrests.
Dupery offers a satisfying mix of logical deduction, risk management, and noir-style crime solving. Its many roles and changing investigations keep the pressure on, while the reputation system makes every arrest count. For fans of detective games who enjoy questioning every detail and catching people in a lie, this is a compelling solo experience with plenty of reasons to start another case.

Features of Dupery: A Game of Solo Deduction:
- Single-player deduction roguelite: Investigate a criminal underworld without needing other players.
- 175+ handcrafted roles: Encounter a wide range of characters with different behaviors, clues, and abilities.
- Reputation system: Keep track of mistakes and avoid wrongful arrests that could end a detective career.
- Three distinct regions: Explore separate campaigns with unique mechanics and roles.
- Procedurally generated cases: Investigations change from run to run, keeping each attempt fresh.
- Customizable runs: Select roles, quirks, and modifiers between missions to influence upcoming cases.
- Interactive detective board: Use notes, pins, strings, and other notation tools to organize evidence and connect clues.
Minimum System Requirements:
- OS: Windows 10 or later
- Processor: Dual Core 2.5GHz
- Memory: 2 GB RAM
- Storage: 1 GB available space










