Here is the full list of all 35 Little Nightmares II achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Your life is now free of challenges. Congratulations
Hats are very important to some people
You punctuated someone's day. Maybe they'll notice!
Hello, have we met?
Nothing of us remains anywhere. Bravo!
Nothing of us remains in the pale city
Movie night on the ward - all taken care of!
It's crueller to let him live
Nothing of us remains in the hospital
Some holes are more picky than others
Better to be safe than sorry
There, you'll be much warmer now
Plenty of snacks for a growing boy
Nothing of us remains at the school
Tempting, so tempting...
Rebellion at its finest!
Creative, efficient, brutal. Top of the class!
Unorthodox, but they all count!
It would be cliché to collect them all
Nothing of us remains in the wilderness
It's not murder if they're bad people... is it?
Hold tight and we'll be just fine
What did you expect to see in there?
Not today!
Perfect! It's so... you!
It's all over now
Life in the big city is all over
Are you sure you don't need any further... treatments?
Any other last requests?
I see through you...
Relax, she heard you!
Best days of our short, terrible life
You never know when you need protection from the elements
My, what a curious song you play!
Nature is a terrifying thing