Here is the full list of all 32 Dummy Dungeon achievements.
Find something interesting to drink for the prisoner
Help the bard tune his instrument
Experience the pathetic joke of a vampire
..and the great mage is saved
Make a scandal with absolutely no reason (yeah it's your fault)
Protect the statue of the god of labor and make a big fuss in the underground
Pay off the fairy's debt
Defeat the giant (and become the captain of the ship)
Gather all parts of the robot
Defeat the arena master
Win the jackpot in the wheel of fortune
Escape from the fake world with the assassin
Chopp the guard and help the chosen side
Pass the spear warrior exam
Save your buddy before something bad happens!
Save the injured werewolf
Survive the Hunt
Make the perfect potion with the witch
Defeat the final boss for the first time
Arouse the mercy of the legendary mage of death
Haha! Good job! I have no more jokes (seriously!)
Defeat the 2nd floor boss in 10 seconds
Complete the game with a vampire's curse.
Carry 5000 coins with you
Complete the game with 10 kisses at once
Summon all the elementals
Win the game by skipping the 1st, 2nd and 3rd boss
Defeat the boss under the influence of 2 different kisses
Carry with you 2 legendary weapons and a legendary perks
At the end of the cave challenge, the statue of the work god has maximum health
You have created the heart of nature