Finish the first chapter.

Find a sketch of a secret passage in the fifth chapter.

Finish the sixth chapter.

Block the rats from getting into the catacombs in the first chapter.

Complete all sketches in your diary in all chapters in a single playthrough.

Finish the game in under 5 hours.

Complete all records in your diary in all chapters in a single playthrough.

Put out the flames of the past in the eighth chapter.

Finish the final chapter.

Use the letter opener in the first chapter without using the Oculus Perpetua.

Collect all letters and notes in your diary in all chapters in a single playthrough.

Infiltrate Borgia's hideout in the fourth chapter.

In the Zodiac minigame on the astrology counter in the eighth chapter, arrange all Sagittarius discs on the left and all Capricorn discs on the right.

Read the final, complete version of Giacomo's Chronicle in the main menu.

Break into the pope's study in the fifth chapter without using the Oculus Perpetua.

Find a uniquely mysterious place and record it in your diary in the final chapter.

Finish the game in under 11 hours.

Complete all diary-related achievements in a single playthrough.

Inspect a suspicious letter at the first opportunity.

Finish the third chapter.

Finish the second chapter.

Shoot all the required targets in the second chapter.

Finish the fifth chapter.

Finish the seventh chapter.

Pick up the stepladder in the seventh chapter.

Find a new notebook in the first chapter.

Finish the fourth chapter.

Find every possible death in the safe minigame in the fourth chapter.

Finish the game in under 8 hours.

Finish the eighth chapter.