Here is the full list of all 32 Walking Zombie 2 achievements.
Kill 100 zombies.
Kill 1000 zombies.
Kill 10 000 zombies.
Kill 100 000 zombies.
Open 5 safes.
Open 50 safes.
Open 500 safes.
Open 5 000 safes.
Travel 2 kilometers.
Travel 20 kilometers.
Travel 200 kilometers.
Travel 2 000 kilometers.
Dig 2 tresures.
Dig 20 tresures.
Dig 200 tresures.
Dig 2 000 tresures.
Shoot enemies 50 times in the head.
Shoot enemies 500 times in the head.
Shoot enemies 5 000 times in the head.
Shoot enemies 50 000 times in the head.
Spend 1000 silver coins.
Spend 10 000 silver coins.
Spend 50 000 silver coins.
Spend 250 000 silver coins.
Find 5 hidden objects.
Hack computer on highest difficulty.
Find Boris' watch in the latrine.
Give money to the beggar.
Be kidnapped by aliens.
Talk to animal.
Blow up rock during one of the quests.
Kill your first enemy.