The Sun
Taken the first photo



The Hierophant
Developed the first photo



The Moon
Communicated with the White Lady



The Hermit
Entered the family crypt



Temperance
Played the first puppet theatre sequence



The Devil
Played the second puppet theatre sequence



Death
Completed the games story

The High Priestess
All diary pages read


Early on in the game you'll unlock Giulia's box and receive your diary. For this achievement you will need to read every diary entry. They will automatically be added at certain points in the game, you'll know you have a new diary entry because it will be marked with a red exclamation point in your inventory.


The Stars
Every newspaper edition read


Right after finding your diary, you will need to head downstairs. On the table is a newspaper with a red exclamation point above it, for this achievement you will need to read all of the newspapers. You don't have to interact with all of the headlines, just picking it up is enough. They will always spawn in the same location at the start of every new day.


The Wheels of Fortune
Carried out a divination every day


Near the start of the chapter The Woods you'll be tasked with finding your tarot cards. You can find them in your parents bedroom in the desks drawer, much like the 2 achievements above, you'll need to open your inventory and interact with the cards on every new day. They are also marked with an exclamation point.

Even though these achievements are classed as missable, the game creates a save at the start of every chapter, so once you've finished the game you can reload any chapter from the beginning to collect an achievement you missed.


The Magician
Dressed in Martha's clothes


At the very start of the chapter the Room, once you've gotten out of bed you'll be required to get dressed, for this achievement wear Martha's clothes located in the left most closet.
*You'll have a few more chances to unlock this achievement later if you missed it the first time around.


Strength
Taken all IR photos with hidden riddles
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Judgement
Taken all 4 IR photos of the lady


For these two achievements you'll need to find the locations of the 10 different infrared photo opportunities. You'll need the infrared film and the tripod found starting in the chapter The Rolls. I have a video below showing the locations of everything you'll need for these achievements.
**For the riddle photos, you have to develop them first before the next one will spawn, but the photos of the lady can all be taken in one go.



The Lovers
Completed Lapo's quest


This achievement can be completed starting from the chapter The Burial, at the start of this chapter you'll be able to read the letter from Lapo. A little while later you'll gain access to the phone and be able to call different numbers, call the number from Lapo's letter, 6934. Follow the directions given to you to unlock this achievement.



The Tower
Discovered the house in the woods


You can visit this house many times during any of the chapters, however I found the achievement would only unlock during the Graveyard chapter, this might be a bug. It is located towards the right side of the woods.

The Fool
Completed all telephone calls for obtaining information


For this achievement you'll need to call every phone number in the game and select the correct dialogue options. I have sorted the tables below by which chapter you should find the letters and call the numbers during.
**This achievement won't actually unlock until towards the end of the game during an unmissable phone call scene with Don Attilio.

- The Haberdashery letter can be found on a table in the basement


- The German Command letter can be found on the desk in the study
- The Asylum telegram can be found on the front door

The Emperor
Observed an in-house object


You should unlock this achievement naturally, an "in-house object" is any of the objects that are marked with a speech bubble, interacting with them will unlock this achievement.


The Chariot
Fixed the bike


This achievement is technically unmissable as you'll be required to ride the bike later on in the game, however I thought I would mention it here in case anyone needs help locating the bike pump! It can be found on the first floor of the house in the farthest room. It is attached to one of the bikes on the opposite side of the room.

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The Empress
Taken 5 photos with no story link


For this achievement just take 5 photos of anything that isn't story related.


The World
Developed 10 photos with no story link


To unlock this achievement you just need to develop 10 non story related pictures.


The Hanged Man
Collected all camera accessories


There are 15 camera accessories to collect, they are usually either in the dark room or on your fathers desk. This achievement was recently fixed, if you have all of the accessories but the achievement wouldn't pop, if you open the accessory menu you should now unlock the achievement!



Justice
Taken a photo with every camera accessory


To unlock the Justice achievement you'll need to find all of the 15 camera accessories. For this achievement go through one by one taking a photo with each accessory.