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