Here is the full list of all 16 Darkwood trophies - there are 5 silver, 10 gold and 1 platinum.
Platinum
In the swamp, trap the villagers in the quarry with the giant boulder.
Do not succumb to the Doctor's trap.
Give the key to the Musician.
Give the key to Wolf.
Kill the Mutated Pig inside the pigsheds.
Burn the Talking Tree.
Complete Chapter 2 without burning the Talking Tree.
Survive Wolf's ambush.
Eat the Mushroom Granny.
Go to sleep in the grave while dreaming.
Kill the Black Chomper while dreaming.
Make it to Chapter 2.
Make it through the Prologue.
Burn the Being in the Epilogue.
Go to bed in the Epilogue.