Nixie Sudoku is a great puzzle game for beginners and more advanced sudoku enthusiasts. Classic sudoku puzzle is a logic-based, combinatorial number-placement puzzle.

Nice and simple nixie tube style sudoku puzzle game with 9 difficulty levels.
Level 1 has 14 digits to reveal.
Level 2 has 19 digits to reveal.
Level 3 has 24 digits to reveal.
Level 4 has 29 digits to reveal.
Level 5 has 34 digits to reveal.
Level 6 has 39 digits to reveal.
Level 7 has 44 digits to reveal.
Level 8 has 49 digits to reveal.
Level 9 has 54 digits to reveal.


Sudoku rules

Rule 1 - Each row must contain numbers from 1 to 9, without repetitions.
You must focus on filling each row of the grid while ensuring there are no duplicated numbers. The placement order of the digits is irrelevant.

Rule 2 - Each column must contain the numbers from 1 to 9, without repetitions.
The Sudoku rules for the columns on the grid are exactly the same as for the rows. You must also fill these with the numbers from 1 to 9, making sure each digit occurs only once per column.

Rule 3 - The digits can only occur once per block (nonet).
A regular 9 x 9 grid is divided into 9 smaller blocks of 3 x 3, also known as nonets. The numbers from 1 to 9 can only occur once per nonet.

// Option A //

To download Nixie Sudoku, Nixie Tube Style mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Nixie Sudoku, Nixie Tube Style mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Nixie Sudoku, Nixie Tube Style from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Nixie Sudoku, Nixie Tube Style in HappyMod App.