Finish the introduction

Finished mission 1

Finished mission 2

Finished mission 3

Finished mission 4

Finished mission 5

Finished mission 6

Finished mission 7

Kill an enemy by poisoning the food

Give an orc one of your clones to eat

Kill two or more enemies by making a chandelier drop on them

Manage to disable three guards, or more, inside a clone's smoke bomb

Unlock all skills

Kill an enemy with an aerial kill

Kill an enemy with a covered kill

Kill an enemy who was bound by a clone

Eliminate a guard with a booby trapped clone

Gather all the treasures

Kill a torturer in a duel

No body found during a mission

Kill 20 enemies in duel

Pick pocket 15 guards

Create 30 clones

Kill more than 40 guards with throwing knives

Unlock 20 doors

Drink 20 vials of amber

Do not use any item during a mission

Extinguish 30 torches

Kill 50 enemies without making noise

Let 15 clones die

Eliminate 200 enemies

Unlock the Insignia of the Shadow for each mission

You looked at the World Tree a bit too long...