The House of Da Vinci 3 achievements

Finish the seventh chapter.

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

Finish the first chapter.

Finish the game in under 11 hours.

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

Finish the eighth chapter.

Inspect a suspicious letter at the first opportunity.

Shoot all the required targets in the second chapter.

Finish the second chapter.

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

Find a new notebook in the first chapter.

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