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