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