Here is the full list of all 17 They Don't Sleep achievements.
Be in the red on every need at the same time.
Fix 5 fences.
Pick up an assault rifle
Have over 100 ammo and over 20 food, snacks, diapers, and formula.
Kill 15 zombies in a row while outside the fence.
Reach level 50.
Collect one of each supply type from zombie drops.
Restart 10 times.
Escape in the boat.
Escape in the truck.
Restart after collecting at least 5 parts.
Reach level 20.
Restart once.
Kill 6 zombies in a row while outside the house.