Here is the full list of all 25 Don't Escape: 4 Days to Survive achievements.
Be the sole survivor
Get the perfect result on night three (bandits)
Unlock the True Ending
Make sure everybody survives.
Get the perfect result on night three (thunderstorm)
Get the perfect result on night one (locust)
Unlock the Awakening mode
Don't use the car.
It would never go this high on its own...
Get the perfect result on night four (fuel)
Witness the last snowman in the world
Get the perfect result on night two (cold)
Get the perfect result on night one (spiders)
Complete the game
Survive the fourth day
Get the perfect result on night four (air)
So that's what this item is for!
Survive the third day
You didn't forget to say goodbye.
Get the perfect result on night two (heat)
Survive the second day
Learn this and that about your neighbourhood
At least you tried!
Get the perfect result on night one (gas)
Survive the first day