Full list of all 25 Witchtastic achievements.
The base game contains 15 achievements, and there are 2 DLC packs containing 10 achievements.
Unlock the fourth chapter
Use an explosion potion to blow up the spider
Unlock the third chapter
Finish all levels in the first chapter with "Excellent" rating
Keep brewing during the bonus stage to unlock your first magic gem
Unlock the second chapter
Find a way to blow up a pumpkin
Complete all available chapters
Keep brewing during the bonus stages to unlock thirty magic gems
Keep brewing during the bonus stages to unlock fifty magic gems
Finish all levels in the second chapter with "Excellent" rating
Finish all levels in the third chapter with "Excellent" rating
Finish all levels in the first chapter with "Witchtastic" rating
Finish all levels in the second chapter with "Witchtastic" rating
Finish all levels in the third chapter with "Witchtastic" rating
Unlock the fifth chapter
Finish all levels in the fourth chapter with "Excellent" rating
Finish all levels in the fourth chapter with "Witchtastic" rating
Keep brewing during the bonus stages to unlock eighty magic gems
Keep brewing during the bonus stages to unlock one hundred magic gems
Defeat the evil witch
Finish all levels in the fifth chapter with "Excellent" rating
Finish all levels in the fifth chapter with "Witchtastic" rating
Prevent the green rat from escaping
Keep brewing during the bonus stages to unlock all available magic gems