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