Here is the full list of all 20 Frankenstein: Master of Death achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Feed coal into the fire of engine of the steam train
Collect 3 objects within 3 seconds
Open the cage
Explode the dynamite
Get rid of the tiger
Get into the hold of the sunken ship
Meet Elizabeth
Cross the abyss
Go fishing
Walk past the monster
Repair the horse figurine
Use the mold
Use the crossbow
Collect 5 objects within 5 seconds
Don’t skip any I-SPY game
Don’t skip any of the mini-games
Don’t search easy ways
Pay attention to the details
Open all the safes
Use the camera