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