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