Here is the full list of all 29 Don't Knock Twice trophies - there are 9 bronze, 14 silver, 5 gold and 1 platinum.
Acquire all trophies.
Destroy all of the Russian dolls.
Destroy half of the Russian dolls.
Complete the game without lighting any wall candles.
Complete the ending with restraint.
Burn the whale.
Dunk the basketball.
Pot the black snooker ball.
Cook the crow.
Feed the crow.
Complete the ending with aggression.
Find 100% of collectables.
Find 100% of collectables in a single playthrough.
Complete the Earth part of the pentagram.
Find all of the family photographs.
Complete the Air part of the pentagram.
Complete the Spirit part of the pentagram.
Find 80% of collectables.
Complete the Fire part of the pentagram.
Destroy a door handle.
Find the axe.
Find 60% of collectables.
Find the flamethrower.
Complete the Water part of the pentagram.
Read Jess' diary entries.
Destroy a Russian doll.
Find 40% of collectables.
Read Chloe's diary entries.
Light the candle.