Here is the full list of all 38 Wedding Witch achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Achieve 10 or more victories in any difficulty.
Master the melee magic 10 times.
Master the projectile magic 10 times.
Master the areal magic 10 times.
Master the familiar magic 10 times.
Drink maximum amount of the Muscle Potions.
Drink maximum amount of the Corruption Potions.
Master the curse magic 10 times.
Drink 10 beast potions.
Collect 100 flowers.
Drink 10 muscle potions.
Achieve a victory with less than 10 damages dealt to the witch.
Drink 10 corruption potions.
Drink 10 big breasts potions.
Drink maximum amount of the Hips Potions.
Drink 10 hips potions.
Lose 10 ore more times in any difficulty.
Master the explosion magic 10 times.
Drink maximum amount of the Big Breasts Potions.
Dodge 100 times.
You killed 20,000 devils!
Clear Nightmare Wedding difficulty.
Drink maximum amount of the Beast Potions.
Drink maximum amount of the Small Breasts Potion
Drink 10 small breasts potions
Clear Hard Wedding difficulty.
Recover health 100 times.
You killed 10,000 devils!
Use 100 skills
Open 100 pumpkin boxes.
Move 1,000 meters in the game.
Critical attack occurs 1,000 times.
Clear Normal Wedding difficulty.
Achieve one victory in any difficulty
Get damages 100 times.
You killed 1,000 devils!
Attacked by the Guardian of the seal 10 times.
You lost for the first time.