Indicia: Detective Sudoku

Contains adsIn-app purchases
Content rating
Everyone
500+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

ONE STOLEN JEWEL. A MANSION FULL OF SUSPECTS. A SINGLE CULPRIT.

Indicia is a game of pure logic deduction: place every suspect in the right cell using the clues on their alibi cards, and work out who was left alone with the jewel. No luck, no guessing — every case has exactly one solution, and you get there by reasoning.

HOW TO PLAY
• Every row and every column holds exactly one suspect, like a sudoku.
• Each suspect carries a card with their alibi: "was next to a plant", "in the Library", "alone in their room"...
• Cross-reference the clues, cross out the impossible cells and close the case: the one left alone with the jewel is the thief.

EVERYTHING IS DEDUCIBLE, NOTHING IS GUESSWORK
• Every level is verified: a single solution, reachable through logic alone.
• Stuck? Hints walk you through the full chain of reasoning step by step: what to mark, what to cross out, and why.
• Built-in tutorial so you learn as you play.

PLENTY TO SOLVE
• Over 850 cases across 8 worlds, from 6×6 boards to start with all the way up to 20×20 at extreme difficulty.
• Daily case: a fresh mystery every day, with a streak to keep alive and an archive of past cases.
• Global leaderboards, achievements and detective stats for every case you close.

MADE FOR PUZZLE SOLVERS
If you like sudoku, logic grid puzzles, nonograms, brain teasers or a good detective mystery, Indicia is your next case. Nothing is random and nothing is hidden: the answer is already on the board, waiting for you to read it.

PREMIUM (OPTIONAL)
• Unlimited cases, completely ad-free.
• Offline mode: download whole difficulties and solve with no connection.
• The full daily case archive, plus cloud saves so you can pick a case up on any device.

AN ART DÉCO WORLD
Mansions, a 1920s gala, hand-drawn suspect portraits and the look of a real detective's case file. The atmosphere of a noir novel, the mechanics of a Japanese logic puzzle.

100% wits. Zero luck. Can you catch the thief?

Play in your browser too: https://indiciagame.com
Catch the jewel thief with pure logic. Deduction, no guessing, case by case.
Updated on
Aug 17, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Personal info, Financial info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Cleaner casefiles: the board reads better and the case deduces better.

• No more repeated clues.
• The accomplice takes real work: you can't read it off one card.
• Tap a suspect's photo to open the portrait large, with every trait listed.
• Placing someone no longer hides them behind the room name.
• Tapping a clue fills the object's whole cell.
• The daily case ends in its file: your time and the fastest players.
• In Settings, the history of every version.
Content rating
Everyone
Learn more

App support

Phone number
+5491159054592
About the developer
Juan ignacio Veltri
juanii.veltri@gmail.com
Padre Elizalde 460 10A B1702 Ciudadela Buenos Aires Argentina