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