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