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