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.

ИНСТРУКЦИЯ ПО АКТИВАЦИИ:

1. Необходимо скачать и установить Steam http://steampowered.com/download/SteamInstall.msi
2. Зайти под своей учетной записью или зарегистрировать новую.
3. Перейти в раздел "добавить игру" и выбрать "Активировать через Steam...", ввести ключ полученный после оплаты.