Killer Sudoku by Sudoku.com

Killer Sudoku by Sudoku.com

Math crossword & number puzzle

216K ratings
2634 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • August 6, 2020
  • August 1, 2026

Features

Killer Sudoku by Sudoku.com video #1 for iPhone
Killer Sudoku by Sudoku.com screenshot #2 for iPhone
Killer Sudoku by Sudoku.com screenshot #3 for iPhone
Killer Sudoku by Sudoku.com screenshot #4 for iPhone
Killer Sudoku by Sudoku.com screenshot #5 for iPhone
Killer Sudoku by Sudoku.com screenshot #6 for iPhone
Killer Sudoku by Sudoku.com screenshot #7 for iPhone
Killer Sudoku by Sudoku.com screenshot #8 for iPhone
Killer Sudoku by Sudoku.com screenshot #9 for iPhone
iphone
ipad
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About

Engage in a challenging math crossword and number puzzle experience. Solve thousands of Killer Sudoku puzzles with enhanced gameplay, daily challenges, and seasonal events. Train your brain and become a sudoku master with helpful hints and notes.

โœ“Killer Sudoku puzzles
โœ“Thousands of levels
โœ“Daily challenges
โœ“Seasonal events
โœ“Hints and notes
โœ“Brain training gameplay
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What users say

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What's New in Killer Sudoku by Sudoku.com

4.4.1

August 1, 2026

- Performance and stability improvements We hope you enjoy playing Killer Sudoku. We read all your reviews carefully to make the game even better for you. Please leave us some feedback about why you love this game and what you'd like to improve. Keep your mind active with Killer Sudoku!

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In-App Purchases

$14.99

Killer Sudoku No Ads

Enjoy Killer Sudoku puzzles without ads

Charts

Top Free

๐Ÿ“ˆย 202+5

Board games

This game rose +5 positions in Board games chart.

Last updated on August 8, 2026.

User reviews

Wonderful game

This is a relaxing Sudoku. Iโ€™ve tried other apps and this one is the best, combining math and logic! Love it!

Fun n all butโ€ฆ

Itโ€™s fun n all but I go through each difficulty way too fast so I donโ€™t end up playing for long before Iโ€™ve done all the difficulty levels yall offer!

Ads

I do not mind ads between games but repeatedly in the middle of a game is irritating and negatively impacts my concentration.

Used to be great

This game has gone from a great game with ads only between games to one where youโ€™re dealing with more ads than play time.

It started with just by adding an occasional ad during the game that you could quickly cancel out and return to the game. These ads then became longer and now are near full length ads that you canโ€™t cancel out of. Then recently there were pop up video ads popping up from the bottom screen. You can swipe down on these video but they just op up again, plus you still get all the regular ads. Expect those to become full time ads too in the near future. Then there are the ads that popup as soon as you launch the game and between games.

Look elsewhere.
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Ruined

When I installed this game over a year ago it was great. But now it has been overrun by greed. Ads interrupt your flow mid game! Unplayable. Uninstalled.

Developer apps

User experience

๐Ÿž

Reported Bugs

5 issues

Incorrect puzzle solutions

Bug

Scoring and stats issues

Bug

Screen orientation problems

Bug

Game freezing and crashing

Bug

Unresponsive controls

Bug
โœจ

Requested Features

6 requests

Option to toggle number combinations

Feature

Ability to lock correct numbers

Feature

Improved hint system

Feature

Customizable font and color options

Feature

Progress sync between devices

Feature

Difficulty level adjustments

Feature

FAQ

What is Killer Sudoku?

Killer Sudoku is a math crossword and number puzzle that combines elements of classic Sudoku with additional cage sum rules. Players must fill rows, columns, and 3x3 regions with numbers, ensuring each cell is part of a cage whose numbers add up to a specified sum. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.

How do I play Killer Sudoku?

Fill all rows, columns, and 3x3 regions with numbers 1-9, just like classic Sudoku. Additionally, each cell belongs to a cage indicated by dotted lines. The numbers within each cage must add up to the sum shown in the upper left corner of the cage. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.

Is this app free to play?

The app is free to download and play, offering a vast number of puzzles and gameplay features. It also includes in-app purchases and advertisements, which can enhance the user experience or provide additional content.

What makes this Killer Sudoku app different?

This Killer Sudoku experience is designed for both beginners and advanced players with enhanced gameplay that makes rules easy to follow. It offers thousands of levels, daily challenges for unique trophies, and seasonal events for special medals, all from a developer known for Sudoku.com.

What if I get stuck on a puzzle?

The app provides helpful hints and notes to guide you when you encounter difficulties. These tools are designed to assist players of all skill levels in progressing through the puzzles and learning the game mechanics.