Touch-first deduction
Select a portrait, tap a valid square and adjust the board until every clue fits.
Noir murder sudoku
Solve the crime, one square at a time.
GridNoir blends deduction, room-based maps and suspects with clue cards. Place every person in the right scene before submitting your solution.
No accounts
Rewarded hints
Updatable levels
Coming soon to TestFlight and Google Play internal testing
A board that plays like a crime scene
Each level is a case file: rooms, occupiable objects, unique people and one-row-one-column logic.
Limited hints
The game gives free starter hints and can offer more through rewarded ads.
Fresh cases
The app can download compatible level catalogs without blocking launch if the network fails.
Store-ready foundations
This site includes the public pages Apple, Google Play and AdMob commonly ask for: privacy, support, terms and app-ads.txt.
Data summary
GridNoir is an independent alternative for players searching for Murdoku-style or murder sudoku games. It is not affiliated with or endorsed by Murdoku. GridNoir has no accounts and does not ask for name, email, contacts, camera or precise location. It uses local progress data, an optional level backend and Google Mobile Ads/UMP for rewarded ads and consent.