Here is the full list of all 81 Wayward Manor achievements.
Don't let Toombs Scare Polly twice
Make Toombs shoot himself in 5-7
Hit Herkimer with a bottle
Have Hubert run to hide immediately after being exposed in 5-5
Explode the Brat in 5-5
Make the twins fight
Finish 5-3 without breaking the glass
Light two things with one fireball
Lead Theophilus to the left
Bonk Herkimer with two bottles
Drop the bunny in the punchbowl
Burn the bunny
Spike Herkimer's drink without using the punchbowl
Have the rat carry the bunny twice
Trap the Bunny
Hit Toombs with an arrow
Revisit an old friend
Hit Mildred with an arrow
Scare Theophilus with an explosion and a candle snuffing at once
Hit Dagmara with an arrow
Hit Dagmara with two bottles
Finish the level only by putting out lights
Have two kinds of vomit mess a dress
Finish the level without scaring Dagmara
Have Mildred crash into Dagmara
Use a doll to vomit on Mildred and a dress at the same time
Use up four bottles
Use up all the bottles in the level
Use up both bottles
Make Dagmara see the Goon
Bonk Dagmara on the head with a plate
Slide the chest from under Benny
Destroy all China Plates and Carts
Destroy the China Shelf
Scare the Rat
Push Dagmara twice in a row
Scare Dagmara with two rats without haunting the rat holes
Scare Dagmara twice with rat tails
Explode the rat
Scare Dagmara and Hubert at once with an explosion
Smash Benny with the chest
Scare Benny with three explosions
Make a twin slip get caught in a mousetrap
Hit a twin with Hubert's punching glove
Finish the level using only messy dresses
Hit Mildred with all the bottles
Have Mildred, Dagmara and the rat meet
Trap Hubert in three mousetraps
Have the twins beat up Hubert
Get rid of all of Hubert's hiding places
Have Mildred spank Fortitude
Have Mildred spank Patience
Scare Theophilus with an explosion
Burn down both tiger heads
Scare Dagmara with an explosion
Make Hubert escape the room before Theophilus
Snuff out a candle with the powderkeg
Set a dress aflame
Make Theophilus flee before Mildred
Hit Theophilus with an explosion
Finish the level without getting Herkimer drunk
Finish the level by only getting Herkimer drunk
Turn off a gramophone without Herkimer punching it
Have the bunny scare Dagmara
Make Herkimer dance three times
Make Mildred messy four times
Finish the level without breaking a single bottle
Revisit an old friend again
Spill the drink with the bunny
Lead Theophilus to the right
Hit a cat with a bottle
Hit three rats with bottles
Use three mousetraps on rats
Don't use any bottles in 5-3
Save Mildred's last dress
Make the Twins share an Apple
Help Toombs in 5-4
Free Hubert using only five firecrackers in 5-5
Hit Toombs with a bottle
Hit Toombs seven times in 5-6
Explode the Bunny in 5-7