Here is the full list of all 17 Return of the Obra Dinn trophies - there are 2 bronze, 4 silver, 10 gold and 1 platinum.
Get all trophies
Solve any 6 fates.
Solve any 15 fates.
Solve any 30 fates.
Solve any 45 fates.
Solve all fates in chapter I.
Solve all fates in chapter II.
Solve all fates in chapter III.
Solve all fates in chapter IV.
Solve all fates in chapter V.
Solve all fates in chapter VI.
Solve all fates in chapter VII.
Solve all fates in chapter IX.
Solve all fates in chapter X.
Loosely true, in the eyes of Company and Crown.
Leave the ship without solving all available chapters.
Solve the entire book.