Roomdoku: Sudoku Whodunit

Logic mystery in your pocket

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Step into a noir whodunit and solve cases with pure logic. Roomdoku blends the satisfying deduction of sudoku with the tension of a murder mystery — place suspects onto a grid, read the clues, and rule out the impossible until only the culprit remains. How to play • Each case gives you a grid, a cast of suspects, and a handful of clues. • Move suspects between rooms using what the clues tell you ("in the library", "next to the victim", "not on a wooden tile"). • When every suspect sits in the correct place, the culprit is revealed. Features • Four difficulty tiers: Easy, Medium, Hard, Expert. • Themed cases with unique characters and rooms. • Three hint types: reveal a cell, undo wrong placements, unmask the culprit. • Daily and monthly leaderboards — race the world for the fastest solve. • Team play: join a team and push your team's daily ranking. • Friends: trade friend codes and compare solves. • Daily and weekly missions with rewards. • Streaks that grow as you play each day. Play anywhere • Fully localized in 29+ languages. • Offline-ready — progress lives on your device and syncs to the cloud. • Works on phones and tablets. Great for fans of • Logic puzzles, sudoku, cryptic grids • Clue / Cluedo, noir fiction, detective games • Short focused sessions (3–8 minutes per case) Free to play. Optional in-app purchases unlock extra hints or remove ads. No personal data collected — only an anonymous ID is used for cloud sync. Gather the clues. Trust the logic. Catch the killer.

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Bug fixes and performance improvements.

Version 1.2.14

The developer, Seongbin Hwang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Seongbin Hwang
Size
  • 204.5 MB
Category
  • Puzzle
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Streak Freeze ×5 $2.99
  • Streak Freeze ×3 $1.99
  • Streak Freeze ×1 $0.99
  • Culprit Reveal ×10 $7.99
  • Culprit Reveal ×3 $2.49
  • Culprit Reveal ×1 $0.99
  • Eraser ×15 $4.99
  • Eraser ×5 $1.99
  • Eraser ×1 $0.49
  • Reveal 15 Cells $4.99
  • Learn More
Copyright
  • © 2026 Bluetag
  • Developer Website
  • Privacy Policy