Based on the title, this is most likely a rules-light TTRPG or supplement often hosted on platforms like itch.io or shared via community forums. Quick Tips for Finding the File:
Be cautious when downloading files from "file-hosting" sites (like MediaFire or Mega) unless the link comes directly from the creator’s official social media or website.
If you found this link on a site like Reddit or a TTRPG Discord, check the original post's comments. Creators often provide mirrors or updated links if the initial file download fails.
Most independent sci-fi games with unique titles like this are hosted on itch.io. Search for the title there to find the official creator's page.