Here is the full list of all 42 Pleh! achievements.
The base game contains 41 achievements, and there is 1 DLC pack containing 1 achievements.
Push the chair 1500 times
Push the chair 500 times
I wish we could stay like this forever
This door was not one of them
Cracked the mainframe
10.17
I bet you think you're so funny.
I respect your wishes.
Consider this your final warning
I AM EVERYWHERE
Disappointment
Find all 10 hidden transcripts
Type "null" when null
Demotivation
Depression
If you're reading this, BIOSener.config installed correctly. If you're not reading this, BIOSener.config did not install correctly
Quit the game at the warning screen
Misery
Thank you VERY much for playing!
Thank you for watching the credits!
I should have known.
Carry on.
Anxiety
Please don't take me away...
Agony
A clock, a piano, and a girl. What do they all mean?
Sing happy birthday twice
Remember to wash your hands!
Desperation
Push the chair 100 times
Please leave me alone
Dullness
Stop taking them away from me!
Push the chair 50 times
Push the chair 10 times
Afterlife
Suicide
Please come back...
Walk backwards for 10 seconds
Beat Pleh!
Press H to begin
Complete the new content update