Repair the winchwheel in the first chapter.

Repair the bridge in the first chapter.

Finish the game in under 4 hours.

Finish the game in under 10 hours.

Finish the lift controls minigame in the fourth chapter without using Oculus.

Replace the lift winchwheel in the fifth chapter.

Finish the final chapter.

Finish the minigame in the book in abbot's chamber in the fifth chapter on your first try.

Finish the Rubik's cube minigame in the final chapter.

Finish the second chapter.

Finish the monstrance minigame in the fifth chapter without using Oculus.

Finish the sun rays minigame in the final chapter without using Oculus.

Gain the key to the sanctum of the secret library in the final chapter.

Finish the third chapter.

Finish the game in under 7 hours.

Get a sketch of the mysterious invention in Leonardo's secret workshop in the third chapter.

Have five items in your inventory at the same time.

Finish the first chapter.

Remove the stone slob from under the gazebo in the second chapter.

Complete all sketches in your diary in all chapters.

Finish the fifth chapter.

Finish the fourth chapter.

Finish the shell minigame in the third chapter on your first try.

Find a ghost in the back of the scriptorium in the fifth chapter.