Here is the full list of all 18 Yet Another Zombie Defense achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Kill 8 zombies with a single sniper rifle bullet in defense mode
Kill 8 zombies with a single rocket in defense mode
Kill 300 zombies with shotgun in a single game in defense mode
Survive for 5:00 in endless night mode
Survive for 3:30 in endless night mode
Score 1,000,000 points in defense mode
Survive 10 nights without taking any damage
Build and equip four turrets
Use no more than 6 clips during the first night
Survive for 2:00 in endless night mode
Survive 10 nights without any barricades or turrets
Score 500,000 points in defense mode
Score 250,000 points in defense mode
Survive 6 nights without buying anything
Score 150,000 points in defense mode
Score 80,000 points in defense mode
Score 30,000 points in defense mode
Score 10,000 points in defense mode