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Avid Inventor Successfully invent at least 100 items

Tae Kwon Leap Kill 25 zombies with your bare fists.

Up to the Challenge Beat the Challenge of Olympus

Hangman Defeat 20 enemies with gunfire by aiming while hanging.

Not So Special Take out 10 Special Forces soldiers

Unhuman Beat Titan Mode

Diamond Hard You cleaned out Vangelico to pay back Martin Madrazo.

A Thirst for Knowledge Restore your first memory chip.

Top of the Pecking Order Win a Cockfighting match

Artilleryman Kill 20 enemy players in multiplayer using a turret.

Rot Commander Use 5 Rot Actions in a single combat.

Tis but a flesh wound! Sever 100 limbs.

Steam Punk Create weapons to rival the gods of fire or thunder.

King of the Hill Unlock all trophies

Catcher Crusher Defeat a Catcher.

We Need You Complete Episode 2: Amelie.

Duck If You Love Life Avoid Jack's scissor attack by crouching.

Weapon Specialist Acquire all upgrades for all weapons

Out Before Dessert Complete the "Happy Birthday" videotape within 5 minutes.

Houdini Got arrested three times and escaped each time.

Hidden In Plain Sight Find your way to Miami

Aiden's Apocalypse Destroyed the gas station, the church, the gun store and the helicopter.

Hogar Dulce Hogar Fully upgrade one Camp Facility at any Guerrilla Camp (Solo Campaign only)

Hit 'n Run Run over 10 soldiers in a vehicle

I'm all that! Win a ranked match in every multiplayer mode.

Into the Unknown Warp to Hell

Pimp My Sidearm Fully mod a weapon.

50 Kills: Dragon Sniper Defeat 50 enemies with the Dragon Sniper.

A Friendship Resurrected With friends like this who needs enemies?

Dedicated student Reach level 25.

Saved All Saved every character that could be saved.

That's a Spicy Meat-a-ball Kill an enemy by attaching a Remote Bomb to them and detonating it.

Hack & slash Kill 250 zombies using edged melee weapons.

1st Place at the Science Fair Create all items that contain Chem Fluid and Strong Chem Fluid.

Tinkering Fully upgrade a Praetor Suit category.

Momentum Shift Upgrade a Rune

Savior Save 5 people besieged by zombies.

To put it bluntly Kill 250 zombies using blunt melee weapons.

Fly Swatter Shoot and knock back Marguerite while she's leaping at you.

Impaired Drivers Defeat both Mecha Imps and their taunting Imp pilots.

Ninjerilla Capture an FND Base without being detected (Solo Campaign only)

Bare-knuckle Slugger Defeat 50 enemies with hand-to-hand combat.

Overheated Complete a Special Operation

Humanitarian Kill 50 human enemies.

Say Cheese Captured a picture in Photo Mode

Argent Overload Fully upgrade Health, Armor, or Ammo capacity

Rip and Tear Glory Kill all common enemy types in the campaign.

Together Till the End Finished the game in Duo mode.

How many days exactly? Play Dead Island - Definitive Edition at least 28 days after starting it for the first time.

Check It Out Capture 10 Checkpoints (Solo Campaign only)