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Veteran Main character learned a specialization

Gold Medalist You obtained your first gold perk.

Boom! Kill one explosive rat

The Sensible Life of Research Complete research for the first time

I Felt Your Presence Witness the cult's meeting

Close Combat Specialist Kill 100 enemies with melee attacks.

Fresh Out of the Package With Koller's help and the Neuroplasticity Calibrator, eliminate overclocking for experimental augs.

Teamwork Endurance Co-op Challenge: Warm up from freezing by standing next to a campfire lit by your partner

Top Of The Food Chain You successfully killed 20 players with a pistol in a deathmatch.

Demolition Derby You destroyed 50 vehicles.

When Therapy Makes It Worse Break through the barriers of self-deceit

Hull: Refined Upgrade to the 3rd tier hull.

Squid Soup? Accept Jefferson's Soup

Equipped an Elite Coil or Weave Equipped an elite coil on a weapon or an elite weave on an outfit.

Dockyard Discord Finish the Connection level in "Joe's Adventures."

#10 Downing Street Reach Career level 10.

Mr Gold Collect 4,000,000,000 LEGO studs

I've Brought You A Gift Defeat the Soul Arbiter

Communication Skills Endurance Co-op Challenge: Kill 5 enemies that have been marked by your partner

Hippy-Stomper Foot stomp 12 aliens

Fragmerchant - Kill 5 Helghast using a single grenade Kill 5 Helghast at once using a single frag grenade

Pigeon Parfait You played 'Bird Blast.'

Return to Sender Completed Return to Sender.

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Decked Out Find the full Dublin Champion armor set (Wrath of the Druids).

One Lost in Madness Ran out of time in brain field.

I just love them! Win all the creatures

Pacifist Clear the "Intel Operative Rescue" Side Op without killing a single enemy

Herbalist Reached the Max Herbalism level

The Royal Protector Finish the game with Corvo Attano

Fantasma Infiltrated the villa without being seen

Behold the Betrayal More eyes do not see more than the mortal trifles.

Mighty Soldier Defeated 1,000 enemies.

QForce Master Unlocked for earning the rank of Master.

Instigator Start a Spectated Arena Fight in a Settlement

Master Builder Craft an item from Tier 4 materials in all non-masterwork slots in single-player mode.

Power Kat Raised all of Kat's powers to the maximum.

Firebug Defeated the LU-74 "Firebug"

Smörgåsbord Kill at least one of each non-boss Mutation.

Pull the Lawnmower Over! Drive a lawnmower as Rex Fury

Gladiator school Survive 15 consecutive waves with each of the 4 characters.

Plink Kill 50 enemies with the Hazard pistol.
"Frag you."

Part 1: The Minrathous Job Technically, the plan worked.

Break of Dawn Discover the true nature of the Aurora device

Warp Mastery ME1: Use biotic Warp 25 times

Trick Arrow Skills Shoot a Lizard with a Special Arrow

Papercraft Wizard Collect all the papercraft plans in the world

Clemency Pays Capture a bounty alive.

Companionship Reached Bond Level 6 with an ally.

First Contact Destroy all enemy spacecraft during the chase scene.