A Spanner in the Works
Complete Memory Sequence 1.

This achievement is not missable.
There aren't any bonus objectives to look out for in this chapter.
Just play through the mission, kill your target and escape by train.

Mission:
A Spanner in the Works

A Simple Plan
Complete Memory Sequence 2.

You will get it for completing the 2nd sequence in the game.

Mission:
A Simple Plan

A Modern Babylon
Complete Memory Sequence 3.

You will get it for completing the 3rd sequence in the game.

Mission:
Somewhere That's Green
Freedom of the Press

A Quick and Reliable Remedy
Complete Memory Sequence 4.

You will get it for completing the 4th sequence in the game.

Mission:
A Spoonful of Syrup
Unnatural Selection
On the Origin of Syrup
Cable News
Overdose
The Crate Escape
Playing it by Ear

The Perils of Business
Complete Memory Sequence 5.

You will get it for completing the 5th sequence in the game.

Mission:
Friendly Competition
Research and Development
Survival of the Fittest
Breaking News
End of the Line
The Lady With the Lamp
A Room with a View

A Run on the Bank
Complete Memory Sequence 6.

You will get it for completing the 6th sequence in the game.

Mission:
A Case of Identity
A Spot of Tea
A Bad Penny
One Good Deed
A Thorne in the Side

All Is Fair in Politics
Complete Memory Sequence 7.

You will get it for completing the 7th sequence in the game.

Mission:
Playing Politics
The Bodyguard
Driving Mrs. Disraeli
Motion to Impeach
Unbreaking the Bank
Change of Plans

The Joys of Freedom
Complete Memory Sequence 8.

You will get it for completing the 8th sequence in the game.

Mission:
Strange Bedfellows
Triple Theft
Fun and Games
Final Act

Shall We Dance?
Complete Memory Sequence 9.

You will get it for completing the 9th sequence in the game.

Mission:
Double Trouble
Dress to Impress
Family Politics
A Night to Remember

Queensbury Rules
Reach combo level 40.

Very easy to get early in the story.
If you struggle to get this early then these might help:

Unstoppable I - "Increase the time before you lose your combo streak due to inaction."
Unstoppable II - "The first hit you take during a combo doesn't end your combo."

Blade in the Crowd
Assassinate fifty enemies.

You'll get it playing normally: the assassinations are, as well know in this franchise, when your hero kill some enemy while unseen.

Thieftaker
Bring three Bounty targets back alive.

There will come a point in the main story where you will be asked to kidnap someone and bring them back to them, this is your introduction to bounty hunt missions. This mission will give you all the details but basically you have to reach the target undetected and kidnap them.

Unqualified Success
Complete three Templar Hunts and their challenges.

You can retry all templar hunts. You can do this through the progress tracker. If you did any and failed, just click them again.

Ordinary Criminal
Complete twenty Crowd Events.

Crowd events are ever occurring, yet entirely random. They can be encountered in any district at any time. Your goal os to complete 20 of them. They will appear as little red or orange dots on your minimap depending on what kind of event they are.

Children's Aid Society
Complete five Child Liberation memories.

As you're going around saving London from Blighters, you'll come across sections that need freed that are marked with a ball and chain. Those are the Liberation missions

Friends at My Back
Recruit a gang of 5 allies.

To be able to recruit 5 gang members to follow you around, you need the Leadership III skill. For this, you need to reach Level 5.

Phantom
Learn every Stealth Skill as Evie.

There are total 19 Stealth skills.

Level 1 - (automatic)
Whistle
Knockout
Stealth Navigation
Air Assassination

Level 2 - (1 skill point each)
Lockpicking I
Kidnap
Loot Takedown
Double Assassination

Level 3 - (2 skill points each)
Lockpicking II
Intimidation
Stealth I
First Strike I
Assassin Steps
Knife Master I
Stealth II

Level 5 - (4 skill points each)
Knife Master II
Stealth III

Level 6 - (6 skill points each)
Chameleon
First Strike II

Flawless Conqueror
Secure three Gang Strongholds and complete their optional constraints.

You can go into the Progression Log (from the Main Menu) then to the Progress Tracker. Under Associate Activitie you can redo Gang Strongholds that aren't 100%

Bartitsu
Learn every Fight Skill as Jacob.

There are total 18 Fight skills.

Level 1 - (automatic)
Multi-Finisher
Stun Attack
Counter
Tool Combo

Level 2 - (1 skill point each)
Health Boost I
Unstoppable I
Slayer I

Level 3 - (2 skill points each)
Health Boost II
Unstoppable II
Counter Boost
Health Boost III
Execute I
Slayer II
Mutilate I

Level 5 -(4 skill points each)
Adrenaline
Execute II
Mutilate II

Level 6 - (6 skill points)
Combat Stamina

Look Out Below
Kill three enemies with a single stack of hanging barrels.

This can be done as early as sequence 4 in mission "Unnatural Selection".

Bedfellows, Strange or Otherwise
Reach maximum Loyalty with any Associate.

Fastest way to do this is probably World War I simulation.

Wonder of the Age
Reach Level 10.

This achievement seems fairly straightforward, but keep in mind this is the level cap. In order to reach it, you must acquire every skill in the skill tree.

Artisan
Craft a Level 10 Item.

You need to be level 10 to be able to do this.
After that you need to find one of the nine level 10 schematics.
Once you have the schematics just gather materials and craft.

Treasure Hunter
Complete ten Raids of any type with Jacob or Evie.

After speaking to Ned Wynert complete 10 cargo hijacks and the achievement will unlock

Bare-Knuckle Champion
Win three different Fight Clubs.

Once you can leave Whitechapel, you should see a marker near top of the map. It has black background with a yellow "T" on it. Go to it and speak with the character. He will open up the fight club and race missions.

WHAT IS WRONG WITH YOU
Flip five vehicles by shooting their horses.

There is a mission in sequence 4 "The Crate Escape" where you can get it

A Broad Base
Reach Loyalty level 1 with all Associates.

Associates are:
- Gang Strongholds: Henry Green
- Bounty Hunts: Frederick Abberline
- Child Liberations: Clara O'Dea
- Templar Hunts: Henry Green
- Gang War: Henry Green
- Spy Hunts: Winston Churchill
- Spy Hideouts: Winston Churchill
- Master Spy Hunt: Winston Churchill
- Horse Races and Fight Club: Robert Topping

Whirlwind of Death
Perform fifty Multi-Finishers.

Probably the easiest place to get this is during the fight club instance. You can unlock fight club by going to the Associate Activities icon on the map for Robert Topping.

Chimney Sweep
Synchronize every Viewpoint in London.

There are total of 19 viewpoints in London. 3 are located in World War I simulation.

Opium Scourge
Affect at least four enemies simultaneously with the Hallucinogenic Dart.

In Sequence 4 you get Darts. Easiest place to get this achievement is going to Sequence 5 , memory 1. In the second section you climb up onto the roof and then look at the fire barrel that has 2 enemies next to it. There are 2 more enemies patrolling and will eventually walk by it. That is your chance.

Keys to the City
Acquire all of the Gang Upgrades.

There are total of 39 gang upgrades:

RINGLEADER:
Rook Training I - 1000, 50 Leather
Allies in Arms - 2500, 50 metal, 25 Chemical
Training Rooks II - 10000, 100 Metal, 50 Silk
Enhanced Firepower - 6000, 100 Metal, 75 Chemical
Training Rooks III - 20000, 100 Metal, 50 Silk
Rook Riders I - 1500, 50 Lather, 100 Metal
Rook Riders II - 3000, 100 Metal, 50 Leather
Rook Carriage - 5000, 100 Leather, 100 Silk
Cavalry Call - 8000, 150 Metal, 100 Leather
Rook Watchers - 2000, 50 Leather
Rook Brutes - 5000, 50 Leather
Rook Enforcers - 8000, 100 Metal, 50 Silk
Carriage Sabotage - 4500, 50 Metal, 50 Chemical
Poison the Well - 5000, 50 Chemical
Dull Blades - 3500, 50 Leather, 25 Silk
Bad Powder I - 4000, 100 Metal, 50 Chemical
Bad Powder II - 6000, 100 Metal, 80 Chemical

INSIDER:
Police Bribes - 5000, 25 Silk
Notoriety - 7500
Little Rooks - 1500, 100 Metal, 50 Chemical
Delivery Service - 1000, 50 Leather, 25 Silk
Explosive Delivery - 2000, 50 Metal, 50 Chemical
Growler Boom - 1500, 25 Metal
Dispatcher - 1500
Medicine Market - automatic, given to you
Mad Science - 2500, 50 Metal, 25 Chemical

SWINDLER:
City-Wide Craze - 500, 50 Metal, 50 Chemical
Bomb Discount - 4500, 100 Metal, 25 Chemical
Black Market Affiliation - 3000, 50 Metal, 50 Chemical
Black Market Ties - 4000, 50 Chemical
City Takeover - 10000, 50 Chemical, 50 Silk
Ale Heist - 1500, 50 Chemical
Shell Company - 5000, 25 Silk, 25Chemical
Rate of Income - 8000, 25 Silk, 25 Chemical
Pub Investor - 6000, 150 Leather, 50 Chemical
Pub Games - 10000, 100 Leather
Bookmaker - 12000, 100 Leather, 50 Silk
Tea Magnate - 15000, 50 Metal, 50 Chemical
Shop Investor - 20000, 100 Metal, 100 Silk

Multitalented
Acquire ten Perks.

There are total of 29 perks:

1. Double Kill
2. Triple Kill
3. Quadra Kill
4. Combat Mastery
5. Absolutely Stunning
6. No Touchbacks
7. Headshot
8. Ledge Kill
9. Near Death Recovery
10. Multi-Counter Kill
11. Fancy Moves
12. Countershot
13. Brace for Impact
14. Road Rage
15. London Drift
16. Gone Lawing
17. Riding Shotgun
18. Death by Rook
19. Wanton Destruction
20. Double Air Assassinate
21. Cover Assassinate
22. Shoot the Messenger
23. Assassination
24. Electrifying
25. Vanish in Smoke
26. Knife Kill
27. Zipline Assassin
28. Vanish
29. Flawless Fighter

Blade from Above
Air Assassinate twenty enemies from a zipline.

in Sequence 4 memory 2 is perfect place to do this achievement.

Furious
Destroy twenty vehicles by ramming them.

It should come through natural playthrough.

Mentor
Reach 100% Sync in the Main Memories

From Main menu - Progression log -> progression tracker and see which ones you are missing for 100% Sync.

A Life in Letters
Collect all of the Royal Letters.

There are total 12 letters. They are located in the Westminister district of London.

Student of History
Collect all of the Historical Posters.

There are total of 50 posters to collect.

City of London (10)
Lambeth (6)
The Strand (8)
Southwark (7)
The Thames (4)
Whitechapel (5)
Westminster (10)

Language of Flowers
Collect all of the Pressed Flowers.

There are 30 pressed flowers to collect.

Whitechapel (3)
Lambeth (4)
Southwark (4)
Westminster (6)
The Strand (5)
City of London (5)
The Thames (3)

Cerevisaphile
Sample every beer brand in London.

There are 20 vintage beers to collect.

Whitechapel (3)
Lambeth (2)
Southwark (2)
Westminster (4)
The Strand (4)
City of London (5)

A Quarter-Furlong at a Time
Finish first in 3 different Street Races.

Street Races become available after Evie meets Robert Topping in Sequence 4.

You Wouldn't Steal a Policeman's Helmet
Hijack twenty police vehicles.

Fastest way for this achievement is:

1. Hijack a police carriage
2. Recruit a Rook and wait for him to get onto the carriag with you.
3. Go to the roof
4. Rook takes over driving
5. Hijack it again
6. Repeat till achievement pops

Most Unsporting
Shoot fifty enemies before they shoot at you.

Hightower Coal is a good place to get the achievement.

Without a Grudge
Destroy 5000 destructibles with your carriage.

Simply drive recklessly around and it comes to you (Grind needed)

No Ticket
Kick fifty enemies off of trains.

Replaying seuence 1 missiong works here.

Guardian Angel
Successfully escort ten friendly cargo shipments.

Brutal
Perform 30 complete Brutal Takedowns.

A "complete" takedown is when you hold X next to an unaware ennemy

Keep calm and carry on
Kill a Brute while he calms down his panicked allies.

This one is really easy to get in memory sequence 4 of the DLC. You will come to a spot above 3 regular enemies and a brute. Throwing a "fear bomb" to panic the enemies will work here.

Put the fear of you into them
Scare an enemy and make him kill someone else by mistake.

This one is really easy to get in memory sequence 4 of the DLC. You will come to a spot above 3 regular enemies and a brute. Throwing a "fear bomb" to panic the enemies will work here.

The new terror of Whitechapel
Unlock 50% of the skills.

The skill tree from the main game is already complete in the DLC, don't worry.
But you'll have 7 new skills to purchase, they are all tied to the new "fear" aspect of the gameplay.

A well-kept secret
Jack is dead and his identity will remain hidden forever.

This is related to story so not missable.

Are you scared yet?
Frighten 200 enemies.

Best location to grind this is at the start of mission 10.
Start dropping Bombs until all Guards have a Red fear symbol and begin to run away, then reload last checkpoint.

Ripperologist
Achieve 100% synchronization in Jack the Ripper.

- Complete all 10 story missions with every optional objectives done.
- Complete all 21 loyalty missions, with every optional objectives done.
- Grab every collectibles

Street Sweeping
Conquer all the boroughs in London

There are total 7 boroughs in the game.

1. Whitechapel
- Bounty Hunt - Homer Dalton
- Child Liberation - Radclyffe Mill
- Gang Stronghold - Spitalfields
- Templar Hunt - Harold Drake
- Gang War - Rexford Kaylock

2. Lambeth
- Bounty Hunt - Leopold Bacchus
- Bounty Hunt - Mildred Graves
- Bounty Hunt - Jesse Butler
- Child Liberation - Strain & Boil
- Gang Stronghold - Echostreet Alley
- Gang Stronghold - Battersea Bellows
- Templar Hunt - Martin Church
- Templar Hunt - The Lambeth Bullies
- Templar Hunt - The Fletchers
- Gang War - Cletus Strain

3. Thames
- Bounty Hunt - George Scrivens
- Bounty Hunt - Simon Chase
- Bounty Hunt - Emmet Sedgwick
- Templar Hunt - Tom Eccleston
- Templar Hunt - Captain Hargrave II
- Templar Hunt - The Jekyll Brothers
- Gang War - Edith Swinebourne

4. Southwark
- Bounty Hunt - Anna Abramson
- Bounty Hunt - Albie Vassell
- Child Liberation - Southwark Spinning Mill
- Child Liberation - Hightower Coal
- Gang Stronghold - Jacob's Island
- Gang Stronghold - The Mint
- Templar Hunt - Myrtle Platt
- Templar Hunt - Phillip Beckinridge
- Gang War - Octavia Plumb

5. London
- Bounty Hunt - David O'Donnell
- Bounty Hunt - Harvey Hughes
- Bounty Hunt - Maude Foster
- Child Liberation - Outteridge Manufacturing
- Child Liberation - Wolfshead Brewing Co
- Gang Stronghold - Black Swan Yard
- Gang Stronghold - Rosemary Lane
- Gang Stronghold - Field Lane
- Templar Hunt - Eveline Dipper
- Templar Hunt - The Slaughterhouse Siblings
- Templar Hunt - Thomas Blackroot
- Gang War - Bloody Nora

6. The Strand
- Bounty Hunt - Milton King
- Bounty Hunt - Gilbert Fowler
- Bounty Hunt - Sylvia Duke
- Child Liberation - Lynch's Fine Ornamentation
- Gang Stronghold - Clare Market
- Gang Stronghold - St Giles Rookery
- Templar Hunt - Argus and Rose Bartlett
- Templar Hunt - Peter Needham
- Templar Hunt - Louis Blake
- Gang War - Victor Lynch

7. Westminister
- Bounty Hunt - Ivan Bunbury
- Bounty Hunt - Wade Lynton
- Bounty Hunt - Harrison Harley
- Child Liberation - Goodfellow's Brewery
- Child Liberation - Red Growler Distillery
- Gang Stronghold - Blue Anchor Alley
- Gang Stronghold - Devil's Acre
- Templar Hunt - Wallace Bone
- Templar Hunt - Beatrice Gribble
- Templar Hunt - Edgar Collicott and Bodyguard
- Gang War - Lilla Graves

Godlike
Unlock all of the Secrets of London.

The Secrets of London are music boxes spread across the map. Inside of them are coins that can be placed into Reuge's Vault. After you added all of them, you will be rewarded with the Aegis armor that can be used by Evie.
Location map: In progress..

The War at Home
Complete the World War I simulation.

WW1 simulation should become available in sequence 7. You have to talk to Winston Churchill.

Needle in a Haystack
Kill five enemies from within the same haystack.

The easiest way to get this achievement is to load up Sequence 2, memory 1. Complete the first section on the train and then reach the vantage point when you get the the train station. The game will tell you to "be and assassin" and you'll need to dive into a haystack. Right next to this haystack is an enemy. Simply jump into it, kill him, then restart checkpoint and do it again