Here is the full list of all 67 Mafia II: Definitive Edition achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Kill 1,000 enemies in "Jimmy's Vendetta."
Drive a total of 1,000 miles in vehicles in "Jimmy's Vendetta."
Destroy 100 vehicles in "Jimmy’s Vendetta."
Finish "Jimmy's Vendetta" on any difficulty level.
Kill your enemies in "Jimmy's Vendetta" with every weapon available in the game.
Finish all Car Dealer missions in "Jimmy's Vendetta."
Kill 100 enemies by headshots in "Jimmy's Vendetta."
Achieve a 10x point multiplier in "Jimmy's Vendetta."
Find all of the wanted posters
Drive at least 30 different vehicles
Kill a total of 30 enemies using melee attacks
Rob 5 stores in under 5 minutes
Keep any vehicle at 30mpg or over for 5 or more minutes
Finish the Cathouse level in "Joe's Adventures."
Finish Joe's Adventures on any difficulty.
Reach 2000 points for one velocity run in "Joe's Adventures."
Finish the Supermarket level in "Joe's Adventures."
Push the chief witness into the ice lake in "Joe's Adventures."
Reach 200 points for one Jump in "Joe's Adventures."
Finish the Connection level in "Joe's Adventures."
Reach 10 different score actions in one mission in "Joe's Adventures."
Reach 200 points for one Drift in "Joe's Adventures."
Earn 1,000,000 points in "Jimmy's Vendetta."
Complete your first mission in "Jimmy's Vendetta."
Finish the Witness level in "Joe's Adventures."
Finish what you started
Finish the story on Medium difficulty level or higher
Finish the story on Hard difficulty level
Find all of the Playboy magazines
Complete Chapter 14
Pay a visit to an old friend
Learn what it means to be a Scaletta
Complete Chapter 11
Complete Chapter 12
Complete Chapter 13
Travel at 125mph
Sell 5 vehicles to Derek at the dock
Kill 5 enemies in rapid succession with a headshot
The police want you dead. Survive for 10 minutes.
Settle the score with the Irish once and for all
Help Leo out of a tricky situation without getting caught
Complete Chapter 10
Clean up after Joe
Travel a total of 50 miles in one vehicle
Upgrade one your cars to the maximum level
Complete Chapter 9
Complete Chapter 8
Complete Chapter 7
Complete Chapter 6
Complete Chapter 5
Show that you know how to treat a lady
Complete Chapter 4
Kill 50 enemies
Complete Chapter 3
Buy your first luxury suit
Sell 5 vehicles to Mike Bruski at the scrapyard
Sell all the gas stamps before the time runs out
Get all wheels of your car in the air for atleast 20 meters and then touch the ground again
Obtain the ration stamps without raising the alarm
Improve the dockworkers' haircuts
Complete Chapter 2
Do your first job for Mike Bruski
Upgrade one of your cars one level
Find at least one collectible in the game
Help the woman fix her car in Home Sweet Home
Protect Francesca
Complete Chapter 1