Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Adventurer	Find your way out of the labyrinth under the vampire's castle without using the map in the diary.
Artful Safebreaker	Solve the puzzle on the safe in the house by the crossing.
Best Sleuth	Pass Chapter 3 without a single quest hint.
Born Investigator	Pass Chapter 4 without a single quest hint.
Dark Spawn Hunter	Pass Chapter 5 without a single quest hint.
Eagle Eye	Find 3 consecutive objects without a single mistake.
Engineering Genius	Solve the puzzle to fix the cable railway generator.
Faultless Start	Pass Chapter 1 without a single quest hint.
Intellectual	Solve the puzzle locking the stash of the innkeeper's father.
Iron Will	Find all objects in a location without reentering.
Most Welcome Guest	Pass Chapter 2 without a single quest hint.
Relentless Searcher	Find all objects in a location without a hint or reenter.
Skillful Lock Picker	Solve the puzzle on the door leading to the count's living room.
Swift Look	Find all objects in a location without reentering and in less than a minute.