While the adults were distracted, Ethan went to work. He couldn't download the file directly. But he could access the browser's 'Inspect Element' tool. He highlighted the download button, looked at the code, and found the raw URL. He copied it.
If you cannot install the game on the local machine (e.g., a locked-down lab PC), you can still run Ravenfield from a portable drive. ravenfield mods unblocked