Here is the full list of all 11 Zombie Party achievements.
Play Zombie Party for Twelve hours! Go Home!!!
Die 15 times!
Gotta blow 'em up!
Um... yeah.
Eat 69 Cheeseburgers!
Shoot 10,000 Bullets!
Play Zombie Party for six hours! Keep going!!!
Have 25,000 gold in your player account!
Have 10,000 gold in your player account!
Hop around until something happens!
Play Zombie Party for one hour!