Racetrack

The Haunter of the Pits Defeat the Sewer Abomination

The Hour of the Dragon Defeat the Undead Dragon

Must've Left it Open Lockpick 5 doors.

Hades Needs a New Wife Kill Persephone

You Complete Me Completely upgrade all weapons and magic

It's Over Already? Beat the game

Challenge Finder Complete every Taskmaster Challenge in the city once

Charted! - Hard Finish the Game on Hard Without Changing the Difficulty

For the Birds Collect all the Phoenix Feathers

Three of a Kind Kill 3 enemies in a row with your knife in the single player campaign.

Blade from Above Air Assassinate twenty enemies from a zipline.

Master of Masters Defeat Taskmaster

Frequent Flyer Landed 10 gravity kicks without landing or taking damage.

Gods of the North Defeat Hrungnir of the Frost

Railing at the Wind Travel through Catacomb Subrails

Solid Silver Achieve 30 Silver Stat Awards.

Clear Signals Unlock every ctOS Tower

10 Types of Machine Overridden Unlocked and used the overrides for 10 different types of machine.
5/10

It is the King, or his ghost! Defeat the King Beneath

Year 2 Spend two years in the Eighth Underworld.

Ghost in the Machine Download a new ally into a robotic body.

Discovered Krom's Canyon Discovered Krom's Canyon

The Devil in Iron Defeat the Kinscourge

Throwback Master Throw Back a Grenade and Defeat 2 Enemies at Once

Save Your Bacon Recruit Horatio. Don't mind his temper, he can be pig-headed sometimes. Host only.

Vengeance Complete Act 4

Kitted Out In the Main Campaign, fully upgraded one weapon and one Vigor.

Bring a Knife to a Gun Fight Kill 25 enemies using any type of takedown. Put that railroad spike to good use!

Big Game Hunter In the Main Campaign, killed 100 enemies with the Founder Huntsman Carbine or Vox Burstgun.

Grand Largesse In the Main Campaign, spent $10,000 at the vending machines of Columbia.

Ex-plorer Explore Eco Mine

Language of Flowers Collect all of the Pressed Flowers.

Be Kind, Please Rewind Watch all the videotapes in a single playthrough.

Take It to the Max Completely upgrade all weapons.

Boom Bada Boom Destroy Incoming Blast Bots

Bombs on a Train Escort Bomb Train

Whirlwind of Death Perform fifty Multi-Finishers.

Passionately Reciprocated In the Main Campaign, killed 150 enemies with the Founder Triple R Machine Gun or Vox Repeater.

Bossing the Bot Boss Defeat Veger's Precursor Robot

Expert Fortune Hunter Find 80 Treasures

Survivor Kill 75 Enemies in a Row Without Dying

The Open World Completed Chapter 3.

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

Shadows of the Ancient Past Collect 100% of the Artifacts and listen to their memories.

Ghost In The Machine Hack 15 computers in Abstergo Entertainment.

Death Mode: Cities Complete the Death Mode level.

Knockout in the Blackout Defeat 50 enemies in powered down areas while no missions are active.

Wolves Beyond the Border Reach the highlands

I Heart Manhattan 100% complete all districts

Loose Cannon In the Main Campaign, killed 25 enemies with the Paddywhacker Hand Cannon.