Here is the full list of all 27 Last Hope - there are Tower Defense achievements.
Kill the dark hooded creature you've been hunting.
Who is in need of both firepower and healing?
We've been looking everywhere for this!
Let the justice decide the fate of the zombies.
The reign of terror might be finally over!
Don't trust anyone who's acting too friendly.
If you've gotten poisoned, our medicine man can help you.
Equipped with homemade armor, mines and shoguns.
A lot of airplanes but no one to fly them.
Turn up the watts and fry the zombie brain circuits!
If a small turret won't work, try a big one!
Take out a target from far away, making them head pop!
Take control over the highway and get rid of the maggot puking trucker.
Force the Witch leave her crypt.
You are the toughest zombie fighter out there!
End the reign of the Raider boss who attacked the camp.
He is not only capable of acting in the shadows.
Gear up! No good can come by following this road.
Take down the great white vulture roaming the sky.
It's now safe to take a swim and clean yourself up.
Bow before me zombies as I make the earth crumble.
Help the Chieftain to safely return to the village.
Grandma and Grandpa, strike those zombies!
Slay the evil zombie gorilla attacking the village.
He is tall, handsome and ready to rock & roll!
The Stone spirit has been summoned!
Become the savior of the wasteland.