Be careful and finish a level without taking damage from start to finish, after obtaining the book.

Take your sword back to the forge to improve it.

Make your first choice.

Get hooked by spending your first skill point.

Defeat The Disaster

Take care of Swansea's fate

Take care of Aloysius's fate

Defeat Doris

Collect all the trophies

Reveal the quote by Carl Sagan

Reveal the quote by Charles Dickens

Reveal the quote by H. G. Wells

Upgrade a weapon with a module