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
Nothing of us remains in the wilderness
Nothing of us remains anywhere. Bravo!
Hats are very important to some people
You punctuated someone's day. Maybe they'll notice!
Hello, have we met?
Nothing of us remains in the pale city
Hold tight and we'll be just fine
It's crueller to let him live
Movie night on the ward - all taken care of!
Any other last requests?
Some holes are more picky than others
Nothing of us remains in the hospital
There, you'll be much warmer now
I see through you...
Plenty of snacks for a growing boy
Nothing of us remains at the school
It would be cliché to collect them all
Tempting, so tempting...
Creative, efficient, brutal. Top of the class!
Rebellion at its finest!
Unorthodox, but they all count!
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?
Better to be safe than sorry
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
Relax, she heard you!
It's not murder if they're bad people... is it?
What did you expect to see in there?