Sumon is available for free from the Windows App Store.
Main features of Sumon for Windows 8 and 8.1:
When you run Sumon on your device, you will be presented with the below screen.
Here, you can choose the type of the level which you wish to play. I chose the Classic Mode. Once selected, your game will start immediately and you will be taken to the gameplay screen almost instantly. You can see the gameplay screen in the screenshot below.
You can see that the game is based on the process of clicking on the number blocks which will help to form the target number. When you click on the number blocks, a number link is formed and when the numbers get added up to the target number value, the blocks are eliminated and fall off from the board as can be seen in the screenshot below.
The aim of the game is to clear off all the blocks from the screen. You get a specific time for adding blocks to achieve a target number, and if the time runs out, its game over. If you are able to successfully eliminate all the blocks from the gameplay screen before the end of the level, you will be shown the below message on your screen.
This concludes the main features of Sumon for Windows 8 and 8.1.
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Sumon is a nicely designed game for Windows 8 and 8.1 which strives to improve your mental math skills. Overall the game is designed in a way which is appealing to people of all ages, and this is what makes it a great download on any and all devices!