Full list of all 28 Don't Knock Twice achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Destroy all of the Russian dolls.
Burn the whale.
Pot the black snooker ball.
Complete the game without lighting any wall candles.
Complete the ending with restraint.
Complete the ending with aggression.
Find 100% of collectables in a single playthrough.
Find 100% of collectables.
Complete the Spirit part of the pentagram.
Find all of the family photographs.
Complete the Air part of the pentagram.
Complete the Earth part of the pentagram.
Destroy half of the Russian dolls.
Find 80% of collectables.
Dunk the basketball.
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.
Find 40% of collectables.
Read Chloe's diary entries.
Cook the crow.
Feed the crow.
Destroy a Russian doll.
Light the candle.