Stormhill Mystery: Family Shadows is a pretty straightforward puzzle adventure with achievements naturally obtained by going through the story and the main game, followed by a bonus chapter. There is only one missable achievement, namely: "Detective - Find all morphing objects". The locations of these 22 objects are listed in this guide.

The few puzzles that the game offers are pretty easy to solve and they can even be skipped (there is no achievement requiring you to play the game without using hints), but here are two particular puzzles which had a slightly increased difficulty; I added their solutions to this guide, for anyone who needs a bit of help solving them.