Killer Sudoku CTC is a puzzle and board gaming application developed by Nick Carney, available for download on the iOS App Store and Android Play Store. The app is compatible with iOS 11.0+ and Android 10+, and requires 48 MB of free space for installation of the IPA (iOS) or APK (Android) file.

Killer Sudoku CTC


Killer Sudoku CTC icon

Genre: Puzzle

Ratings: 4.61

Version: 1.2

Updated 06/04/22

Downloads: 381

by Cracking the Cryptic

Killer Sudoku CTC is a puzzle and board gaming application developed by Nick Carney, available for download on the iOS App Store and Android Play Store. The app is compatible with iOS 11.0+ and Android 10+, and requires 48 MB of free space for installation of the IPA (iOS) or APK (Android) file.

What is Killer Sudoku CTC app?

***** APRIL UPDATE ***** 40 new standard puzzles + 15 bonus beginner puzzles -------------------------------------
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App available in other languages

How to Download Killer Sudoku CTC on PC

Ready to enjoy Killer Sudoku CTC on a bigger screen? Whether you're on Windows 10, Windows 11, or macOS, we've made it easy. Follow our guide to easily download and run the APK using Bluestacks. For assistance with downloading or installing APK files, our forums are here to help.


Version: 1.2
Version: 1.1

Reviews on Killer Sudoku CTC for iOS

★★★★★ Is it possible to reset the puzzles to play them again?
Love the app, but can’t find a way to reset it and start over again
★★★★★ The perfect sudoku app!
Killer sudoku are IMO the best variant, due tom the sheer variety of logical techniques the setter and solver can explore. These puzzles are really fantastic. Every one is thoughtfully crafted, each infused with a delightfully unique structure and narrative. The puzzle interface is simple but effective, with a sophisticated hint system designed to teach new solving techniques. All in all this app feels like a labor of love. Couldn't recommend it more highly.
★★★★★ Great puzzles, Sometimes hints are not understandable
I enjoy Cracking The Cryptic variations on Sudoku puzzles and spend more time than I’d like to admit playing them. Sometimes when playing the more difficult puzzles, I look to the hints to get insight as to how to solve them. Many times, the hints are vague and do not help to understand the step. I get that it may be text length limited but if it doesn’t help, why bother. Keep making these puzzles while trying to help with better hints for solutions.
★★★☆☆ Great layout, but some of the puzzles are poorly rated.
Best interface of any killer sudoku app on the market. Big problem, though. The puzzles authored by “Cracking the Cryptic” are much more difficult than puzzles rated similarly by other authors. Since this was developed by CTC, it would seem that they are not good judges of their own puzzles. It leads to random difficulty spikes that are frustrating for players like myself just learning the ropes.
★★★★☆ Like it!
Great sudoku app with many well thought out puzzles. One knock is how battery draining the app seems to be. Maybe chosing to build something this simple on Unity was not the right choice?
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