Save the computer science teacher after deceiving him
Defeat both cops without taking any damage
Dismantle objects for a total of 1000 ink
Craft 20 items
Craft 5 items
Defeat the enraged crowd
Use ink in dialogues 20 times
Use 20 items in dialogues
Use ink in dialogues 5 times
Use 5 items in dialogues
Block 50 damage
Drain 500 ink from enemies
Win all existing fights
Use every artefact from the book 7
Complete book 7 without using any artefacts
Find all clockmaker's letters
Avoid all fights in factory
Take alchemist's potion
Leave half of the potion to the alchemist
Find robot's hidden treasure
Find a room behind a portrait
Shoot from a turret
Listen to all tape recordings
Put your trust in a bag of bricks
Upgrade your skills 5 times
Enter the abandoned appartment on the first floor
Complete book 1
Complete book 2
Complete book 3
Complete book 4
Complete book 5
Complete book 6
Complete book 7
Complete the epilogue
Return keys to the neighbour
Steal food from the fridge
Obtain a new skill