Full list of all 14 Royal Defense achievements.
The base game contains 10 achievements, and there is 1 DLC pack containing 4 achievements.
Destroy 1000 enemies
Complete all levels of an episode with three stars
Earn 180 stars
Buy all upgrades for one cannon
Get a magical ability to the maximum level
Lose three times in a row
Complete a level with one heart remaining
Build the upgrades of all types of cannons on a single level
Allow only one enemy to attack the base's gates throughout a level
Use 200 spells
Complete all levels with 3 stars
Complete the game
Complete a level without using spells
Kill 5 enemies in one shot