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.
Find 100% of collectables in a single playthrough.
Cook the crow.
Find all of the family photographs.
Find 100% of collectables.
Dunk the basketball.
Pot the black snooker ball.
Destroy all of the Russian dolls.
Feed the crow.
Complete the game without lighting any wall candles.
Complete the ending with restraint.
Complete the ending with aggression.
Complete the Earth part of the pentagram.
Complete the Fire part of the pentagram.
Complete the Spirit part of the pentagram.
Complete the Air part of the pentagram.
Destroy half of the Russian dolls.
Burn the whale.
Find 80% of collectables.
Destroy a door handle.
Find the axe.
Find 60% of collectables.
Find the flamethrower.
Read Jess' diary entries.
Complete the Water part of the pentagram.
Find 40% of collectables.
Read Chloe's diary entries.
Destroy a Russian doll.
Light the candle.