Case File 038 · Interrogation and Detective Games

Best Deduction Games for Mystery Fans

Mystery and puzzle games where reasoning and elimination, not luck or reflexes, lead you to the answer.

By Murder Book Editorial TeamPublished 16 September 2026Updated 16 September 2026

The best deduction games give you incomplete information and make you reach the answer by reasoning, not by luck or reflexes. You gather facts, rule out what cannot be true and commit to a conclusion. Strong picks for mystery fans:

Return of the Obra Dinn: logical deduction about a lost crew.
The Rise of the Golden Idol: fill in who did what, and why, across 20 cases.
Strange Horticulture: identify plants from clues to steer an occult mystery.
Murder by Numbers: solve pixel puzzles for clues, then question witnesses.
Chinatown Detective Agency: cases that can send you to real-world research.
Shadows of Doubt: track suspects through a procedurally generated city.
Chants of Sennaar: a non-crime pick for notebook-style deduction.

Coming later, Murder Book is an upcoming interrogation game about drawing careful conclusions from uncertain behaviour.

Key takeaways

Deduction games reward elimination: ruling out what cannot be true is often faster than proving what is.
The information can come from scenes, documents, conversations, languages or a whole simulated city.
Good deduction games check your reasoning, so lucky guesses rarely carry you far.
Real investigators face the same trap as players: settling on a theory too early.
Murder Book is an upcoming game where behaviour is a clue to weigh, never proof on its own.

What is a deduction game?

A deduction game is built around reaching conclusions from evidence. The game supplies the pieces, such as a scene, a set of statements or a database, and you decide what they mean. The satisfaction comes from certainty you earned: you know the answer because nothing else fits.

Deduction overlaps with other detective mechanics. Some games focus on reconstructing what happened, others on catching contradictions. The games below were chosen because reasoning is the main skill they test, and every one was checked against its Steam listing.

Best deduction games at a glance

Game	Developer	What you deduce	Style	Combat
Return of the Obra Dinn	Lucas Pope	What happened to a ship's crew	First-person exploration	No
The Rise of the Golden Idol	Color Gray Games	Who did what and why in frozen scenes	Point-and-click deduction	No
Strange Horticulture	Bad Viking	Which plant is which, from clues and an encyclopaedia	Plant identification puzzles	No
Murder by Numbers	Mediatonic	Clues hidden in pixel puzzles	Pixel puzzles and questioning	No
Chinatown Detective Agency	General Interactive Co.	Case answers, some needing real-world research	Detective adventure	None described
Shadows of Doubt	ColePowered Games	Suspects in a simulated city	Detective simulation	Some danger
Chants of Sennaar	Rundisc	The meaning of invented languages	Puzzle adventure	None described

Return of the Obra Dinn

Return of the Obra Dinn (Lucas Pope, 3909, 2018) is a first-person mystery built on exploration and logical deduction. As an insurance investigator aboard a ghost ship, you assess what happened to its crew. See Games Like Return of the Obra Dinn.

Best for: players who enjoy long chains of logic.

The Rise of the Golden Idol

The Rise of the Golden Idol (Color Gray Games, Playstack, 2024) is the follow-up to The Case of the Golden Idol. You explore frozen crime scenes, collect key words from what you observe and from witness testimony, and fill in deductions about who did what and why. Steam describes "20 strange cases", and the official site says new puzzle types conclude every chapter. It is also available on iOS and Android. See Games Like The Case of the Golden Idol.

Best for: players who want structured, case-by-case deduction puzzles.

Strange Horticulture

Strange Horticulture (Bad Viking, Iceberg Interactive, 2022) is not a crime investigation, but it is pure deduction. As the owner of a plant shop, you identify plants using an encyclopaedia and clues, then use them to serve customers and steer an occult mystery. Every identification is a small logic problem.

Best for: players who want calm, self-contained deduction.

Murder by Numbers

Murder by Numbers (Mediatonic, The Irregular Corporation, 2020) pairs a murder mystery with nonogram-style pixel puzzles. You solve the puzzles to find clues, then use those clues to question witnesses. It is set in Los Angeles in 1996, where a TV actress teams up with a robot called SCOUT.

Best for: logic puzzle fans who want a story wrapped around them.

Chinatown Detective Agency

Chinatown Detective Agency (General Interactive Co., Balor Games and WhisperGames, 2022) follows ex-cop Amira Darma as she chooses clients and travels the world solving cases. Its most distinctive feature is that some puzzles require research outside the game, such as looking up an airport code.

Best for: players who like treating the real world as their case file.

Shadows of Doubt

Shadows of Doubt (ColePowered Games, Fireshine Games, 2024) is a detective simulation in a procedurally generated city. You gather evidence, break into apartments, hack security systems and track down suspects. Its developer calls it a detective stealth game, so expect some danger and confrontation.

Best for: players who want open-ended deduction in a sandbox.

Chants of Sennaar

Chants of Sennaar (Rundisc, Focus Entertainment, 2023) has no crime in it. It is included as a reference point for notebook deduction. You observe, listen and decipher five interconnected invented languages, writing down glyph meanings in a notebook. If you enjoy the note-taking side of detective games, see Mystery Games That Make You Take Notes.

Best for: players who want to test pure deductive reasoning outside a mystery.

Why do deduction games feel so rewarding?

A good deduction game never needs to tell you that you were clever. You know, because every piece fits. That feeling depends on fairness: all the information must be available, and the answer must follow from it.

A familiar mistake, in games and in real investigations, is committing to a theory too early and then only noticing evidence that supports it. Researchers call this confirmation bias. Read How Confirmation Bias Can Affect an Investigation for the research behind it.

How can you get better at deduction games?

Start with certainties. Lock in what you know for sure before you speculate.
Eliminate. Each ruled-out option makes the next deduction easier.
Write things down. Most deduction games reward notes more than memory.
Test your favourite theory hardest. Look for the one fact that would break it.
Leave room for "not yet". It is better to leave a blank than fill it with a guess.

Is there an upcoming deduction game about reading people?

Murder Book: The Art of Interrogation is an upcoming narrative interrogation game from Gungrounds, an independent studio in Zagreb, Croatia. Its deduction happens across the table from a suspect. Development screenshots show an in-game casebook listing behaviours such as Stonewalling, Stress Response, Avoidance, Acting Emotion, Non-Response, Submissive Gesture, Fabrication and Emotional Fading. The Acting Emotion entry links failing to sustain a performed emotion to cognitive load theory.

That makes uncertainty part of the puzzle. In real life, behaviour is not proof of lying: a meta-analysis of deception judgements found people were right only about 54% of the time on average (Bond and DePaulo, 2006), and a review of 158 possible cues found that many showed only weak links, or none, to deceit (DePaulo et al., 2003). Nervousness, avoidance or a pause can have innocent explanations. A careful reasoner treats behaviour as something to test against the rest of the story, not as a verdict. See Why There Is No Single Reliable Sign of Deception.

Cases are designed for focused 5–10-minute sessions. Murder Book is in development for PC (Steam) and mobile, with release currently planned for the end of Q2 2027.