Here is the full list of all 31 The Forest of Doom achievements.
Suffer at the hands of lycanthropy
Be fired upon by arrows in four different encounters
Find all the artwork in The Forest of Doom
Face a barrage of eggshell splinters
Return a brass bell to its owner
Ride a strange looking horse
Find the ultimate ending in Free Read mode
Tame a flying beast with music
Find all the painted canvas pieces to unlock alternative cover
Wield a carrot as a deadly weapon
Reveal the truth about an individual
Successfully use the Net of Entanglement
Fight a creature that has been darted
Eat a strange fruit
Find your new destiny
Kill a creature who hates 'bwight light'
Fight a feline foe
Release an Earth Elemental on to the world
Use an aromatic bulb to ward off a night terror
Help two souls out but be duped each time
Fight the iconic Shapechanger!
Buy all of Yaztromo's items
Find the ultimate ending in Hardcore mode
Bounce your way out of trouble
Find the ultimate ending in Medium mode
Escape Darkwood Forest!
Find the two halves of the dwarfish hammer
Be lucky in a 'Test your Luck' roll
Win an arm-wrestling contest
Get caught in an Ogre's tree trap
Be unlucky in a 'Test your Luck' roll