Here is the full list of all 21 Earn to Die 2 achievements.
Complete 10 Missions in Missions Mode
Complete Level 10 in Story Mode
Smash 20000 Zombies
Complete Level 9 in Story Mode
Complete Level 8 in Story Mode
Complete Level 7 in Story Mode
Earn $1 billion cumulative cash
Complete Level 6 in Story Mode
Complete Level 5 in Story Mode
Smash 10000 Zombies
Complete Level 4 in Story Mode
Drive a car with only one wheel
Complete Level 3 in Story Mode
Complete Level 2 in Story Mode
Smash 2000 Zombies
Complete Level 1 in Story Mode
Destroy your engine 20 times
Complete 20 Missions in Missions Mode
Complete 30 Missions in Missions Mode
Complete 40 Missions in Missions Mode
Complete 50 Missions in Missions Mode