No missable achievements (plus 80 unknown)
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Complete the Intro missions
Eliminate High Overseer Campbell
Find Emily Kaldwin
Assassinate 10 unaware enemies
Collect 10 bone charms
Complete the Bridge mission
Fight with 5 enemies at once, without any of them surviving
Recover your belongings
Complete the game
Kill an enemy using a Wall of Light
Expose the Lord Regent's crimes and bring about his arrest
After escaping Coldridge Prison, complete a single mission without alerting anyone
Pickpocket items worth a total of 200 coins
Acquire 15 equipment upgrades
After Coldridge Prison, elude 5 pursuers at once without killing them or leaving the map
Assassinate the Lord Regent, Hiram Burrows
After escaping prison, complete a mission without alerting anyone, and kill less than 5 people
Kill 5 characters with Drop Assassination
Make others kill 5 of their own allies
Travel 30 meters in less than 1 second
Kill a tallboy with only your sword
Play from the first mission through Kaldwin's Bridge killing fewer than 10 characters
Get the information you need from the Rothwild Slaughterhouse
Meet with Thalia Timsh, the Barrister's Niece
Break Lizzy Stride out of Coldridge Prison
Speak with the statue of Delilah Copperspoon in Timsh's estate
Deliver (or attempt) the killing blow on Corvo
Restore the Undine to working condition
Complete The Knife of Dunwall in High Chaos
Complete The Knife of Dunwall in Low Chaos
Complete The Brigmore Witches in Low Chaos
Purchase all of the Favors in The Knife of Dunwall
Complete the game without killing anyone
Complete The Brigmore Witches in High Chaos
Complete all missions after the prologue without alerting anyone
Purchase at least 8 favors in The Brigmore Witches
Kill 6 enemies in less than 1 second
Collect all the Sokolov paintings
Complete all missions after the prologue, alerting no one or killing no one but key targets
Kill 4 enemies in less than 1 second using the crossbow
Complete The Knife of Dunwall without killing anyone
Complete The Brigmore Witches without killing anyone
Complete The Knife of Dunwall without alerting anyone
Kill characters with each weapon and offensive gadget
Finish the game without purchasing any supernatural powers or enhancements, besides Blink
Grab a live grenade and use it to kill an attacker
Perform a drop assassination from atop the Empress statue in The Knife of Dunwall
Use an enemy lifted with Pull as a shield
Stay in possession of others for most of a 3 minute period
Complete The Brigmore Witches without alerting anyone
Cause 5 unintentional suicides
Attach an arc mine to a rat, resulting in a kill
Survive The Brigmore Witches in low chaos with 10,000 coins
Complete Train Runner before the train arrives at the station
Finish Mystery Foe without using any active supernatural powers
Perform a drop assassination of at least 150 meters in the Kill Cascade challenge
Find Emily's doll hidden in each of the 10 challenges
Find all of the collectable figurines in Burglar on Expert
Complete Assassin's Run with 100% accuracy using only head shots
In Bonfires, perform all the special combination jumps in 1 round
Complete all Normal and Expert challenges with a 3-Stars rating
Finish Chain Kill or Bend Time Massacre without failing any wave, including bonuses
Get to Wave 13 in Back Alley Brawl killing all combatants personally