Here is the full list of all 19 Until Dawn trophies - there are 4 bronze, 5 silver, 9 gold and 1 platinum.
Mike allowed Emily to stay in the basement
Sam or Ashley attacked the psycho with a weapon
Mike cut off his fingers to free himself from the bear trap
You collected all Gold, Silver and Bronze trophies in Until Dawn
Chris chose to shoot Ashley
Mike shot Emily
Ashley snapped and let Chris die
Ashley or Chris opened the trap door and let the monster in
Sam immediately flicked the switch to set the lodge ablaze
The group found all the clues from the Twins Clueline
The group found all the clues from the 1952 Clueline
The group found all the clues from the Mystery Man Clueline
All of the girls survived until dawn
All eight friends survived until dawn
Nobody survived until dawn
Jessica survived her night of terror
Mike kept the wolf alive throughout the Sanatorium
All the boys escaped death
The group found all the totems on the mountain