Here is the full list of all 16 Ezaron Defense achievements.
All perks researched
Finish all levels with 3 stars
Finish Chapter 4
500 kills
1000 kills
2000 kills
Full upgrade Archer Tower
Full upgrade Canon Tower
Full upgrade Magic Tower
Full upgrade Energy Tower
Lost 1st time
First built building
All buildings and upgrades
Finish Chapter 1
Finish Chapter 2
Finish Chapter 3