Whodoku - Murder sudoku

Overview
Whodoku - Murder sudoku, by ES GAMES inc., takes the grid logic of Sudoku and turns it into a murder mystery. Instead of numbers, you are working with suspects, rooms and objects, and every case asks you to find who was where and what fits where. The game is free to install on Android, in the Puzzle category, and it is also listed for Windows through Google Play Games on PC. It was released on 10 June 2026 and updated on 14 October 2026. On Google Play it shows 4.4 stars from about 1,160 reviews, more than 50,000 downloads, and a content rating of Everyone. That is a growing audience for a new game in the rising murder sudoku, or murdoku, style, and the rating suggests most players enjoy the idea, even if a few have pointed out faults worth knowing about before you download it.

Gameplay
Each case presents a map divided into rooms, with a set of suspects and a list of clues. Your task is to place every suspect in the correct position by combining the clues, one after another, until only one arrangement makes sense. A clue might tell you that two people were in the same room, that a suspect was not near a particular object, or that a position is already ruled out, and the chain only works when you use the clues together rather than guessing from one hint alone. The game opens with a step-by-step tutorial that explains the rules and the controls, then moves on to themed cases, including a New York case and settings shown as Rome and Kyoto. Progress and a scoring system keep track of how you are doing, and the first cases are free, with more content available to unlock.

Features

• Sudoku-style logic puzzles built around suspects, rooms and objects rather than numbers.
• Chained clues that have to be combined, so each case is a small investigation.
• Themed case settings, including New York, Rome and Kyoto.
• A step-by-step tutorial for players who have never tried this kind of puzzle.
• Progress tracking and a scoring system.
• A case-file visual style, with maps and investigation notes.
• Free cases to start, with additional content that can be unlocked.
• Available on Android and on Windows through Google Play Games on PC.

Tips for new players

• Finish the tutorial, even if you already know Sudoku, because the clue rules and the way suspects are placed are different from a number grid.
• Read every clue in a case before you place anyone, so you can see which clues depend on each other.
• Work by elimination. When a clue rules out a room or a position, set that option aside before you move on.
• Start with the suspect or the room that has the most clues attached to it, because that gives you the firmest starting point.
• If you get stuck, re-read the clues in a different order. A clue that seemed useless at the start often becomes the key once two or three other positions are fixed.
• Expect an advert after a run of puzzles. One player review puts them at about every five puzzles, so finish a case before you put the phone down.

Pros and cons
Pros: The mix of Sudoku logic and a murder mystery is fresh, and the case-file presentation gives the puzzles more character than a plain grid. It is free to install, the tutorial explains the rules clearly, and the themed cases give you a reason to keep going. The scoring and progress system also makes it easy to see how you are improving.
Cons: Adverts are part of the free game, and players have reported that some adverts are difficult to close. In-app purchases cost from $2.29 to $11.99 per item. One player reported finding a puzzle, as early as case 14, where more than one answer seemed possible even though only one was accepted; the developer replied that every level should have only one solution and asked for details so it could be investigated. Reviews also note that some level and achievement images appear to be AI-generated art, which may matter to players who value hand-drawn artwork. Google Play lists the version as "Varies with device" and does not give a fixed download size on the web listing, so those two figures cannot be stated as fixed numbers here.

FAQ
Q: Is Whodoku - Murder sudoku free?
A: Yes, it is free to install and play on Android. It contains adverts and offers in-app purchases from $2.29 to $11.99 per item, which unlock additional content.
Q: Is this a normal Sudoku game?
A: No. It uses Sudoku-style grid logic, but you place suspects in rooms and positions instead of numbers, and the clues are written as statements about a case. If you like Sudoku and logic riddles, the reasoning will feel familiar, but the game itself is a deduction puzzle rather than a number puzzle.
Q: What version is it, and how large is the download?
A: Google Play lists the version as "Varies with device" and does not publish a fixed size on the web listing, so the exact version and size depend on your device. The listing does confirm the last update was 14 October 2026, the game is rated 4.4 stars, and it has been downloaded more than 50,000 times.