Sudoku - Classic Brain Puzzle

Contains adsIn-app purchases
4.5
178K reviews
10M+
Downloads
Content rating
Everyone
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About this game

Want to workout your brain and relief stress? You got the right place! Sudoku classic logic game (Japanese: 数独, originally called Number Place) is want you need.
Whether you'd like take a relax or get a small break, Sudoku by Volcano is a good sudoku puzzle game you can find for low time cost entertainment, it'll help you to learn and improve your sudoku levels, and during the game, your mind gets activated and your brain exercised.
With our hint system, aka the sudoku solver, will teach you all the puzzle solving skills you need to solve the classic sudoku quest step by step, and the instructions are very easy to understand, also with helpful animations and colorful visual effects. The hint system will not only tell you the answer but also help you to understand why the answer is, whether you're completely sudoku kids, or the way to sudoku master.
Our sudoku is free brain training games comes with ads, but if you want play sudoku no ads, you're always welcome try our Premium Access which you can play sudoku quest without ads and enjoy much exclusive features.

We created this innovative free suduko game with several various key features:
• Sukudo variations such as squiggly, X and Color
• 8 difficulty levels from very easy sudoku to extreme sudoku which can match with the killer sudoku
• Hint system help you to learn how to solve the suduko brain puzzle
• Career statistics to keep track of your soduko status
• Get more free soduko puzzle from online soduku
• Compete with global players in the Champions Challenge and win the bounty
• The custom number puzzle can let you create your super sudoku puzzles as composed by yourself, or from the paper sudoku
• More than 15000 free sudoku puzzle games waiting for you

during the saduko game, you will be able to
• Auto highlighted seduko numbers for the intelligent hint
• Use pencil marks
• Double-tap the cell to erase numbers
• Use various kind of items, like check the errors
• Unlimited redo & undo

you can also found more useful functions to traing your sudoku mechanics
• You can share with your friends via Twitter or Facebook
• Auto-save, you can pause at any time you like without losing any progress
• Dark Mode to protect your eyes by lower luminosity
• Timer, you can also disable it in settings
• Selected cell highlighting
• Incorrect digits mark
• Enchanting visual effects
• Various numerals like Chinese number
• Premium Access provide sudoku ad free
• Universal sodoku app looks great on phone and tablet
• Daily puzzles competition to get mindsport for your brain
• Give us feedback in the game, with your help we'll make the suduku game better

We hope you will enjoy the stunning designs of our good sudoku free brain games, it's a classic impulse brain training mental games that helps to workout your brain! All for FREE!
Updated on
21 Apr 2025

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
Location, App activity and 2 others
This app may collect these data types
Personal info, Financial info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
153K reviews
A Google user
15 March 2019
9/15/17: Fun and addictive. 3/15/19: I've played a TON of the games, and each of them are different. Each game is challenging (to the degree of low, med., high, etc.), and the game is STILL addictive. Keeps the brain cells functioning, and defeats boredom. Had the 'pencil' option, and for the more challenging levels, it really comes in handy! It's got a timer option so you can play against the clock, and it's also set up so that you can see how your time ranks with others. Definite fun!
25 people found this review helpful
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Jeff Blakely
20 August 2022
Love the game, but the ads make it unplayable. They freeze the touchscreen and often times produce an extremely rapid click sound when you try and close the ad. Other times, the ad will finish with the link to the Google Play Store and there is no way to get back to the game. One must close the game down and restart it to be able to play another puzzle. Please fix this issue. Additionally, one can spend the coins to get rid of ads for however long, and it doesn't work.
15 people found this review helpful
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Volcano Entertainment
21 August 2022
Thanks for your feedback. I'm sorry to hear you're having trouble with the game. But unfortunately we can't reproduce the issue on our end. So could you please provide more info at sudoku@volcantech.com so we can look into the issue. Thanks!
A Google user
8 June 2019
THE BEST SUDOKU application I've ever played, and I've tried a few! Notes are easy to make, and are a automatically removed when you finally choose a number. The games range from super easy to stupidly hard, and there is a wide variety of styles. It's easy to get new puzzles off the 'net,' as well as input your own. I love it!
3 people found this review helpful
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Volcano Entertainment
9 June 2019
Thanks so much for the awesome review. Please tell your friends about the game and what they are missing out on :)

What's new

Thank you for all your feedback, which will help us make a great game!
Enable edge-to-edge display
Improve user interface
Performance and stability improvements