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Who Needs Air? Suffocated for 5 continuous minutes without dying.

Full Exploration You unlocked all the islands.

Guardian Ape Defeated the "Guardian Ape"

Guardian of the Underworld Close all Tartaros Rifts.

Gathering Full Strength Collect all the Keeper's Insights in Episode 3.

Isu Bloodline Completely fill the Knowledge Sequence.

No Escape Captured Kaffarov

Who's the Hunter Now? Defeat a Hunter.

This Is My Boomstick Kill 30 enemies with the XM25 in "Black Tuesday."

Cure for the Afflicted Defeat 100 Afflicted in the main campaign.

Justice for All Complete 100% of Story Mode

Delaying the Inevitable Save Richard with a serum.

Flawless Freeflow Fighter 2.0 Complete one combat challenge without taking damage (any character)

1 Versus 100 Defeat the Hekatonchires.

Ooh-rah! Completed the campaign story

It's so realistic! Collected 5 3D glasses

The hills of Gallipoli Unlock all Codex Entries in The Runner

Master of the Arts Grasped the inner mysteries of any combat style

Danger Close Take down a chopper with an AC-130 smoke grenade in "Bag and Drag."

Home Sweet Home Occupy The Relay Station (Valley Of The Yetis).

All men dream Unlock all Codex Entries in Nothing is Written

Beam Me Up Discovered all named locations aboard the Helios Space Station.

My World is Fire Equip the Flamethrower Boost and win a 4v4 Online match

Informant Collect 22 Intel Items.

Hephaistos's Apprentice Forge the 3 Legendary Weapons.

Dark Forces In the campaign, use the Droid to shock three enemies at once.

Night Survivor Defend The Relay Station And Survive The First Night (Valley Of The Yetis).

Mercy is the Mark You spared Daud’s life

That's How You Do It Complete Tutorial

Outlander Arrive on Solstheim

Blood on Blood Make a Captain kill his bloodbrother.

Mistakes and Triumphs Complete Story Mission: The Shatterer of Worlds.

Big Boy You killed a tallboy using only your sword

Brainteaser Rescue the fifth hostage from Riddler

Life of the Party Send a Destroyer on a Vendetta Mission.

Great Serpent Defeated the "Great Serpent".

Ménage à Trois Destroy 3 tanks with a single 105mm shot in "Iron Lady."

Like Taking Candy from a Baby Finish the game on Very Easy difficulty or higher.

Saved Private Ryan Save the soldier before he burns to death.

Son of Medici Complete Story Mission: Son of Medici.

Builder Complete One Relay Station Upgrade Quest (Valley Of The Yetis, Single Player Only).

Guardian Ape Immortality Severed Used the Mortal Blade to sever the Guardian Ape's undying

All Ninjutsu Techniques Acquired all Ninjutsu Techniques

All Prosthetic Tools Acquired all Prosthetic Tools

Your Own Medicine Kill 10 Isu Soldiers with the Blessing of Kronos enhancement.

Sound of thunder Unlock all Codex Entries in Through Mud and Blood

Curator of Nightmares Recreate all of Iris' nightmares in the Painted World.

Wind Play with the windmills and ride the wind seven times.

Freeflow Gold Achieve 24 medals on combat challenges

Great Shinobi - Owl Defeated "Great Shinobi - Owl"