Full list of all 83 HITMAN 3 achievements. It takes around 50-60 hours to unlock all of the achievements in the base game on Windows.
The base game contains 47 achievements, and there are 3 DLC packs containing 36 achievements.
Reach Mendoza Mastery Level 20.
Find and unlock 15 Shortcuts.
Reveal all undiscovered areas in Mendoza.
Complete all Mission Stories in The Farewell.
Eliminate Vidal with the grape crusher, Yates with poisoned Grand Paladin, and both with gas.
Attend the secret Providence meeting.
Reach Chongqing Mastery Level 20.
Reveal all undiscovered areas in Chongqing.
Kill Hush in his "relaxing chair," electrocute Royce and shoot both with one bullet.
Complete all Mission Stories in End Of An Era.
Use Royce's terminal to fry the core.
Reach Berlin Mastery Level 20.
Become the club owner, and have a sit down with the ICA.
Photograph the Yellow Bird.
Reveal all undiscovered areas in Berlin.
Tremain has a rifle accident, Thames is hit by a crane and Montgomery & Banner light up the club.
Make a target slip and fall while evacuating in a skydiving suit.
Help Emma kill Alexa.
Eliminate Alexa in her private room, shoot her from the roof, and put her to rest.
Reach Dartmoor Mastery Level 20.
Complete all Mission Stories in Death In The Family.
Reveal all undiscovered areas in Dartmoor.
Kill Ingram with his oil-rig model, push Stuyvesant over a rail, and kill them in the air.
Reveal all undiscovered areas in Dubai.
Reach Dubai Mastery Level 20.
Complete all Mission Stories in On Top Of The World.
47 takes another nap.
Get 10 different Playstyles.
Take out a guard with a silenced pistol, with a shotgun and with an SMG.
Complete all Untouchable Challenges.
Complete a Featured Contract.
Complete Level 5 of an Escalation Contract set in the ICA Facility.
Complete The Final Test unspotted. Kill only Jasper Knight, ensuring his body is not found.
Complete the Contract Creation Tutorial.
Assassinate Targets with Ballistic, Accident and Explosion Kills.
Complete Freeform Training in the Prologue.
Reach Carpathian Mountains Mastery Level 5.
Complete Untouchable.
Complete The Farewell.
Complete End Of An Era.
Complete Apex Predator.
Beat the highest leaderboard score on a Contract.
Complete Death In The Family.
Assassinate a Target without getting spotted.
Complete On Top Of The World.
Complete The Final Test in the Prologue.
Complete any Mission Story in The Final Test.
Reach Sapienza Mastery Level 20.
Complete The Showstopper.
Reach Paris Mastery Level 20.
Complete World of Tomorrow.
Complete A Gilded Cage.
Reach Marrakesh Mastery Level 20.
Complete Suit Only and Silent Assassin Challenges on The Icon, A House Built on Sand or Landslide.
Complete Club 27.
Reach Bangkok Mastery Level 20.
Complete Freedom Fighters.
Reach Colorado Mastery Level 20.
Complete Situs Inversus.
Reach Hokkaido Mastery Level 20.
Complete The Last Yardbird as Silent Assassin.
Complete Nightcall.
Reach Hawke's Bay Mastery Level 5.
Complete The Finish Line.
Reach Miami Mastery Level 20.
Complete Three-Headed Serpent.
Reach Santa Fortuna Mastery Level 20.
Complete Chasing a Ghost.
Reach Mumbai Mastery Level 20.
Complete Another Life.
Reach Whittleton Creek Mastery Level 20.
Complete The Ark Society.
Reach Isle of Sgàil Mastery Level 20.
Get a score above 1,000,000 points on The Pen and the Sword.
Complete The Pen and the Sword as Silent Assassin.
Get a score above 1,000,000 points on Crime and Punishment.
Complete Crime and Punishment as Silent Assassin.
Reach Haven Island Mastery Level 20.
Complete Golden Handshake.
Reach New York Mastery Level 20.
Complete all Crime and Punishment Challenges.
Complete The Last Resort.
Complete all The Pen and the Sword Challenges.