Here is the full list of all 22 Zombie Forest 2 achievements.
Totally upgrade the car
Smash the car
Kill 50 marauders
Kill 500 zombies
Lose 20 team-mates
Kill 20 civilians
Live 10 days in survival mode
Live 20 days in survival mode
Live 30 days in survival mode
Complete story mode
Die from Hunger
Die from thirst
Upgrade shelter (crafting table, beds, storage racks)
Totally upgrade your character
Gather full group
Karma +100
Karma -100
Blow up 10 barrels of fuel
Collect 500 pcs wood
Collect 500 pcs stone
Collect 250 pcs iron
Collect 250 pcs gunpowder