Here is the full list of all 47 Silence trophies - there are 30 bronze, 14 silver, 2 gold and 1 platinum.
Obtain all the trophies
Send Spot to Kyra
Listen to Kyra
Place candles everywhere possible
Sneeze over the candle
Get to the gate in 8 steps
Let Sadwick die every time it´s possible
Kick everything possible.
Completed the prayer mill story with the death wheel
Completed the prayer mill story with the dream wheel
Completed the prayer mill story with the life wheel
Find all possible Spot interactions
Spot plunges everywhere
Find all bugs
Let the fish get the berries 3 times
Taste the everything in the swamp
Lick the mushrooms until you pass out
Spot licked everything
Drop the Noiseball
Prime the bomb
Let the mushroom fart ten times
Pull the world worm's tooth
Trigger the same game over sequence twice in a row
Fail three times in balance checks.
Go through the mirror
Finish the game without using the snoopkey
Finish the game without skipping a text
Finish the game without dying
Stay in Silence
You finished chapter three
Dive through the clouds
Shoot the gate
Use the magic boxes to change into all available Spot forms
Skip every puzzle
Grab 10 gold from the well
Discover every possible Spot form
Balance without falling down.
You finished chapter two
Let Spot fly
Let Renie and Noah both pop the bubble
Hit Kyra
Look into the abyss
Burn the swamp
You finished chapter one
Don´t prime the bomb
Fix the bomb without letting go
Play with the shadows.