So 1st you need to get the game, so you go to this steam page: https://store.steampowered.com/app/804320/Papers_Please__The_Short_Film/ and press "get"

after that you need to launch it, so you go into your Steam (the video game distribution site) and go search Papers please and click the one that says short film

after that you need to play it and sit there for exactly 653 seconds and your done

if you pause at exactly 563.92562 seconds you get the only hidden achievement in the game

The name of this game is a reference to the indie game "papers please" and the main logo is seen in the game

At exactly 601.34523428368424689342 seconds a single piece of dust is seen on the lens (this is never seen again)