Full list of all 8 Yu Escape / Monday achievements. It takes around 0-1 hour to unlock all of the achievements in the base game on Windows.
The base game contains 6 achievements, and there is 1 DLC pack containing 2 achievements.
You finished the game!
You found the code!
Mhmmm stick it in!
It's comfier than it looks!
You like them naughty!
You really like fanfiction!
You have found 12 cosplay stamps!
There's something behind there!