Here is the full list of all 25 Containment: The Zombie Puzzler achievements.
Kill 500 Zombies
Complete Act 1
Apply the zombie cure to one patient. Congratulations. You created super zombies.
Kill 100 Zombies
Witness the glory of aggressive fonts!
Surround 15 zombies at once.
Surround 20 zombies at once.
Kill the first zombie in the Campaign.
Kill 1,000 Zombies
Kill 5,000 Zombies
Kill 10,000 Zombies
Kill 10 Survivors
Kill 100 Survivors
Kill 500 Survivors
Kill 1,000 Survivors
Watch America's Fighting Dinosaur at the drive-in.
Complete Act 2
Complete Act 3 by defeating the boss without the forklift.
Complete the campaign
Complete all 20 blocks in Town Hall Survival
Kill 5 non-Zombies with a single grenade.
Kill 8 or more survivors with a single air strike.
Shoot 10 zombies offmap with Sniper items.
Open 20 vehicles.
Complete all 10 blocks in Graveyard Survival.