Here is the full list of all 17 Grow Defense achievements.
Max an Items Level
Complete 10 researches
Defeat 5 Unique Mega Bosses
Reach Mastery Level 3
Find your first legendary item!
Complete round 200
Reach Experience Level 40
Max out Rockets for the Rocket Launcher.
Destroy your first Mega Boss
Stock up over 50 gems
Complete your first research
Have 1 million gold in your pouch
Unlock the mage tower.
Fingerbang the screen over 100 times
Defeat The First Boss.
Finger Bang the screen over 100000 times
Max 5 Legendary Items