First step

Upload all of these files (cloudarcade.zip & unpack.php) to your server or root domain with FTP

After all file uploaded, open yourdomain.com/unpack.php

The script will be extracting "cloudarcade.zip". after file extracted, "cloudarcade.zip" and "unpack.zip" will be removed.

The main advantage of this script is you can upload and extract it easily, it's recommended instead of using SSH due to root owner or file permissions.