Here is the full list of all 11 Task is to Survive achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Use the kit (Key "E") 10 times
Kill 400 monsters
Kill 300 monsters
Kill 200 monsters
Up 10 times first aid kit
Die 10 times
Kill 100 monsters
Up 10 times the ammo
10 shots with the machine
10 shots with a pompgun
10 shots with rifle