Complete the following tasks to unlock the corresponding achievement.

Achievement	How to unlock
Advanced collector	Find all collector's item on normal difficulty level.
Aqua vitae	Find water of life in Doris' house.
Art lover	Find all collector's items that are paintings.
Expert collector	Find all collector's items.
Extreme Ferrum's citizen	Finish game on extreme difficulty level.
Ferrum's maniac	Finish game on all difficulty levels.
Glass lover	Find 5 collector's items that are made of glass.
Grandpa's notes	Find all grandpa's notes.
Hungry kitten	Feed Blacky, grandpa's kitten.
I know the path	Finish game without finding any map.
Lover of darkness	Finish game without using any source of light.
Metal heavier than air	Fly over the city using the aeroplane.
Mini-games expert	Finish all mini-games without using Skip button.
No spiders allowed	Chase a spider in the grandpa's basement.
Novice collector	Find your first collector's item.
Scientist letters	Find all scientists letters.
Secret revealed	Finish game on any difficulty level.
Steam in Steam	Finish steam leakage mini-game.
The family	Find Lagrange family tree.
Who's on list	Find Fatal Blast project payroll list.