You assassinated an assassin

Assassinate the Lord Regent, Hiram Burrows

Stay in possession of others for most of a 3 minute period

Find Emily Kaldwin

Assassinate 10 unaware enemies

You neutralized all key targets using indirect means

You escaped prison and navigated the sewers undetected

You got the Art Dealer's safe combination for Slackjaw, but robbed the safe first

Complete all missions after the prologue, alerting no one or killing no one but key targets

You completed the game in low chaos

You completed the game in high chaos

Travel 30 meters in less than 1 second

Make others kill 5 of their own allies

Complete the game without killing anyone

Kill 5 characters with Drop Assassination

Finish the game without purchasing any supernatural powers or enhancements, besides Blink

You completed all the Slackjaw side missions

Complete the Intro missions

Kill 4 enemies in less than 1 second using the crossbow

Kill characters with each weapon and offensive gadget

Fight with 5 enemies at once, without any of them surviving

Kill an enemy using a Wall of Light

Collect all the Sokolov paintings

You saved Empress Emily Kaldwin

Play from the first mission through Kaldwin's Bridge killing fewer than 10 characters

You completed the Boyle Estate mission without spoiling the party

After Coldridge Prison, elude 5 pursuers at once without killing them or leaving the map

You reached the top of Kaldwin's Bridge

You spared Daud's life

After escaping Coldridge Prison, complete a single mission without alerting anyone

Expose the Lord Regent's crimes and bring about his arrest

Recover your belongings

Cause 5 unintentional suicides

Pickpocket items worth a total of 200 coins

Collect 10 bone charms

Eliminate High Overseer Campbell

Complete the game

You deactivated at least 5 security systems on Kingsparrow Island

Complete the Bridge mission

You completed all the Granny Rags side missions

Complete all missions after the prologue without alerting anyone

You took possession of a fish

You killed Morgan Pendleton with steam

Kill 6 enemies in less than 1 second

Acquire 15 equipment upgrades

After escaping prison, complete a mission without alerting anyone, and kill less than 5 people

You protected Callista's uncle, Captain Geoff Curnow

Complete all Normal and Expert challenges with a 3-Stars rating

Complete The Knife of Dunwall without alerting anyone

Find Emily's doll hidden in each of the 10 challenges

Meet with Thalia Timsh, the Barrister's Niece

Grab a live grenade and use it to kill an attacker

Complete The Knife of Dunwall without killing anyone

Get to Wave 13 in Back Alley Brawl killing all combatants personally

Speak with the statue of Delilah Copperspoon in Timsh's estate

Finish Mystery Foe without using any active supernatural powers

Complete Train Runner before the train arrives at the station

In Bonfires, perform all the special combination jumps in 1 round

Break Lizzy Stride out of Coldridge Prison

Complete The Brigmore Witches without killing anyone

Use an enemy lifted with Pull as a shield

Finish Chain Kill or Bend Time Massacre without failing any wave, including bonuses

Complete The Brigmore Witches without alerting anyone

Complete The Brigmore Witches in High Chaos

Kill a tallboy with only your sword

Complete The Brigmore Witches in Low Chaos

Get the information you need from the Rothwild Slaughterhouse

Complete The Knife of Dunwall in Low Chaos

Restore the Undine to working condition

Perform a drop assassination from atop the Empress statue in The Knife of Dunwall

Find all of the collectable figurines in Burglar on Expert

Perform a drop assassination of at least 150 meters in the Kill Cascade challenge

Survive The Brigmore Witches in low chaos with 10,000 coins

Deliver (or attempt) the killing blow on Corvo

Complete Assassin's Run with 100% accuracy using only head shots

Complete The Knife of Dunwall in High Chaos

Purchase at least 8 favors in The Brigmore Witches

Attach an arc mine to a rat, resulting in a kill

Purchase all of the Favors in The Knife of Dunwall

You used a rat tunnel