| Achievement | How to unlock | Points
|
|---|
| All in a Day's Work | Finish the second chapter. | 25
|
| Ancient Enigma | Finish the final chapter. | 25
|
| Archivist | Collect all letters and notes in your diary in all chapters in a single playthrough. | 40
|
| Artist | Complete all sketches in your diary in all chapters in a single playthrough. | 40
|
| Catacomb Crawl | Finish the first chapter. | 25
|
| Cave Exploration | Finish the seventh chapter. | 25
|
| Chimney Sweeper | Infiltrate Borgia's hideout in the fourth chapter. | 25
|
| Collector of Secrets | Find a sketch of a secret passage in the fifth chapter. | 25
|
| Control Pests | Pick up the stepladder in the seventh chapter. | 25
|
| Curious Soul | Inspect a suspicious letter at the first opportunity. | 40
|
| Dangerous Manipulation | Use the letter opener in the first chapter without using the Oculus Perpetua. | 40
|
| Dear Diary | Find a new notebook in the first chapter. | 25
|
| Devil's Bargain | Finish the fourth chapter. | 25
|
| Feel the Rush | Finish the game in under five hours. | 50
|
| Fireman | Put out the flames of the past in the eighth chapter. | 25
|
| Healthy Moderation | Finish the game in under eight hours. | 40
|
| I Could Do This Blindfolded | Break into the pope's study in the fifth chapter without using the Oculus Perpetua. | 40
|
| Makes You Stronger | Find every possible death in the safe minigame in the fourth chapter. | 50
|
| Man of Faith | Finish the fifth chapter. | 25
|
| Mistakes Were Made | In the Zodiac minigame, arrange Sagittarius discs on the left and Capricorn discs on the right. | 50
|
| Pest Control | Block the rats from getting into the catacombs in the first chapter. | 25
|
| Secrets of Justice | Finish the eighth chapter. | 25
|
| Seeker of Mysteries | Find a uniquely mysterious place and record it in your diary in the final chapter. | 40
|
| Short History of Time Travel | Read the final, complete version of Giacomo's Chronicle in the main menu. | 40
|
| Slow and Steady | Finish the game in under eleven hours. | 40
|
| Target Practice | Shoot all the required targets in the second chapter. | 25
|
| The Bald Lady | Finish the third chapter. | 25
|
| The One with All | Complete all diary-related achievements in a single playthrough. | 50
|
| Uninvited Guests | Finish the sixth chapter. | 25
|
| Writer | Complete all records in your diary in all chapters in a single playthrough. | 40
|