Full list of all 69 HITMAN achievements. It takes around 2-3 hours to unlock all of the achievements in the base game on Windows.
The base game contains 17 achievements, and there are 7 DLC packs containing 52 achievements.
Set the high score on a Contract.
Complete 10 Contracts.
Complete the Contract Creation Tutorial.
Complete a Featured Contract.
Complete Level 5 of an Escalation Contract set in the ICA Facility.
Arrange matters so that the KGB Colonel kills Jasper Knight.
Arrange matters so that a guard finds a discarded weapon and moves it into the hangar.
Assassinate Targets with Ballistic, Accident and Explosion Kills.
Complete The Final Test unspotted. Kill only Jasper Knight, ensuring his body is not found.
Complete The Final Test in the Prologue.
Assassinate Jasper Knight with a sabotaged ejector seat.
Complete any Opportunity in The Final Test.
Change your disguise during The Final Test.
Complete Freeform Training in the Prologue.
Disguise yourself as Mr. Norfolk and assassinate Kalvin Ritter.
Assassinate a Target without getting spotted.
Pacify any individual.
Poach Ivory.
Eliminate both Morgan and Cross in a fall accident and both by dropping a coconut on their heads.
Complete level 5 of an Escalation Contract set in Bangkok.
Complete all Opportunities in Club 27.
Reach Bangkok Mastery Level 20.
Select a Starting Location and use an Agency Pickup to smuggle an item into Bangkok.
Complete Club 27.
Ram Rose and Parvati, make Berg blow himself up and drown Graves.
Yee-haw to the hoedown.
Complete level 5 of an Escalation Contract set in Colorado.
Reach Colorado Mastery Level 20.
Complete all Opportunities in Freedom Fighters.
Complete Freedom Fighters.
Select a Starting Location and use an Agency Pickup to smuggle an item into Colorado.
Imagine meeting you here.
Complete level 5 of an Escalation Contract set in Hokkaido.
Reach Hokkaido Mastery Level 20.
Serve Yamazaki Fugu poisoned sushi and eliminate Soders with the robotic arms.
Complete all Opportunities in Situs Inversus.
Select a Starting Location and use an Agency Pickup to smuggle an item into Hokkaido.
Complete Situs Inversus.
Complete Level 5 of an Escalation Contract set in Sapienza.
Eliminate Silvio during therapy, down his plane with a cannon and shoot him through the telescope.
Awaken the Kraken!
Complete all Opportunities in World of Tomorrow.
Reach Sapienza Mastery Level 20.
Select a Starting Location and use an Agency Pickup to smuggle an item into Sapienza.
Complete World of Tomorrow.
Assassinate Zaydan, as the prisoner, Strandberg during his massage, and both with the APC turret.
Demonstrate generosity.
Complete Level 5 of an Escalation Contract set in Marrakesh.
Reach Marrakesh Mastery Level 20.
Complete all Opportunities in A Gilded Cage.
Select a Starting Location and use an Agency Pickup to smuggle an item into Marrakesh.
Complete A Gilded Cage.
Eliminate Mendola with the crystal ball, Kong in an electrocution, and both by poisoning the pipe.
Complete all Opportunities in A House Built on Sand.
Eliminate Abiatti by impalement, pen and fireworks explosion.
Complete all Opportunities in Landslide.
Complete Landslide.
Complete A House Built on Sand.
Complete all Opportunities in The Icon.
Assassinate Bosco with the monster teeth, in a pyrotechnics explosion, and in a fire.
Complete Suit Only and Silent Assassin Challenges on The Icon, A House Built on Sand or Landslide.
Complete The Icon.
Complete all Opportunities in The Showstopper.
Complete Level 5 of an Escalation Contract set in Paris.
Reach Paris Mastery Level 20.
Become Tobias Rieper.
Select a Starting Location and use an Agency Pickup to smuggle an item into Paris.
Assassinate Viktor Novikov in a light rig accident.
Complete The Showstopper.