https://store.steampowered.com/app/1212470/Fourthy/
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STEAM KEY REGION FREE GLOBAL

A small puzzle game. The essence of the game is simple, move the numbered cubes to arrange them in ascending order from one to fifteen, having only one unoccupied sector. Difficulty increases with each sequence built. You will have to think a lot to put everything in the right order.

Activation Instructions:

1. You need to download and install Steam http://steampowered.com/download/SteamInstall.msi
2. Go to your account or register a new one.
3. Go to the "My Games" and select "Activate via Steam ...", and enter the key received after payment.
4. Once activated, the game will appear in the game list (Library) and you can download it