To contact our Support Team, please use the Support Form

Click here if you are a Sudoku Up Customer and you want to know if you are eligible to receive a free upgrade to the latest version 11.0 of Sudoku Up 2021.

Click here if you have lost your Activation Code and want to receive it again.

Click here if you are a Sudoku Up Customer and you want to re-download the Sudoku Up version you have bought.


Which Windows platform(s) is Sudoku Up compatible with?

You can play Sudoku Up on these Windows platforms:

  • Windows 10 (32-bit and 64-bit)
  • Windows 8.1 (32-bit and 64-bit)

I have two computers and would like to be able to use it on both. Do I have to purchase two licenses?

Yes, you have to purchase two licenses.

(Insert "2" in the Order quantity field, or place two separate orders). One license is required for each PC.



My computer crashed and I would like to download Sudoku Up again.

To download and install Sudoku Up:

  1. Download the installation file by clicking here. To obtain a copy of a prior version of Sudoku Up, please click here
  2. Install Sudoku Up
  3. Enter the Activation Code you received to activate Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key).
  4. Click here if you have lost your Activation Code and want to receive it again.


I have recently bought a new computer. How can I retrieve Sudoku Up?

To download and install Sudoku Up:

  1. Download the installation file by clicking here. To obtain a copy of a prior version of Sudoku Up, please click here
  2. Install Sudoku Up
  3. Enter the Activation Code you received to activate Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key).
  4. Click here if you have lost your Activation Code and want to receive it again.


I have downloaded the latest version of Sudoku Up and now when I try to run it, I get the Trial version. What do I do?

When you buy Sudoku Up, you receive the Activation Code that will allow you to unlock the Trial Version to become the fully-functional version of Sudoku Up.

Please insert the Activation Code in your Trial Version of Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key).

  • Click here if you have lost your Activation Code and want to receive it again.
  • Click here if you want to know if you are eligible to receive a free upgrade to the latest version.

I have the Activation Code for an older version of Sudoku Up but I cannot find where to download this version. Can you help?

Please click here and fill in the following form.


I have paid for Sudoku Up and have received the Activation Code. Now, how do I download the registered version?

There's no registered version to download. Simply enter the Activation Code you received to activate Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key) and you'll immediately have full access to all of the features.


I bought Sudoku Up but when I try to download, I get the Trial Version.

When you buy Sudoku Up, you receive the Activation Code that will allow you to unlock the Trial Version to become the fully-functional version of Sudoku Up.

Please insert the Activation Code in your Trial Version of Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key).



I'm a Sudoku Up's Customer and I need the Activation Code to activate Sudoku Up.

Please click here and fill in the following form.


I have downloaded the latest version of Sudoku Up and my Activation Code does not work.

Enter the Activation Code you received to activate Sudoku Up (run Sudoku Up, click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key).

  • Click here if you have lost your Activation Code and want to receive it again.

I would like to upgrade to the latest version of Sudoku Up but I have lost my last Activation Code.

  • Click here if you have lost your Activation Code and want to receive it again.
  • Click here if you want to know if you are eligible to receive a free upgrade to the latest version.

How do I enter my Sudoku Up Activation Code?

To enter your Activation Code:

  1. Run Sudoku Up.
  2. Click on the Help Menu then choose "Activate Sudoku Up"; or press the CTRL+V shortcut key in the "Activate Sudoku Up" dialog box, enter your Activation Code.

If you have not installed the latest version of Sudoku Up, you can find it by clicking here.

Important: All the versions of Sudoku Up that you download must be unlocked by entering the Activation Code to become the fully-functional version.