Here is the full list of all 20 Loading Screen Simulator achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
KALM DOWN! YOU GONNA DOWNLOAD THE ENTIRE INTERNET
Your PC is slowly sucking in the universe
Finally
That’s too much! I don’t know if I can pay for this
Doobydoobydabbadoobydabadooda bedigabibblebede, It's a secret!
Get 100 points in the game
Now you can make Loading great again
That’s Mega
Click the button 10000 times
I can work with that
Huh, I didn’t know that it was possible to win in console… cool
Slooooooooooooo
Click the button 1000 times
Click the button
Again?
Okay why?
Click…
You dirty little hacker ;)
Wow that was fast