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Gallian Front Commemorative Obtain the decoration made to celebrate the initial publication of the completed On the Gallian Front, given only to those it chronicles.

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Music Box Clue Found out that the machine box is a music box.

Harvester Of Sorrow Complete the game on Expert

Capable Adventurer Reached maximum adventurer level.

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

All These 100,000 Yuld Mithril Pieces...! Have more than 1,000,000 Yuld.

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

Crown of Fortitude Completed the game on hard or nightmare difficulty.

Into the Manse Entered the duke's manse.

Plachta's Happy Satisfied Plachta during Doll Making.

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Headshunter Defeated a hydra or archydra.

The Golden Arms of Gallia Obtain the decoration given to Silver Arms awardees who have gone on to defeat a total of 1,000 enemies in the defense of their homeland.

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Social Note-working Completed all of the character profiles in the notebook.

A Deeper Bond: Silica Complete Silica's side story.
"I won't tell anyone what happened here today."

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

Gasmoxian Slug Beat all of Nitros Oxide's times in Time Trial Mode.

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Loyal Customer Purchased all upgrades in the Motor Forge

I'll Do Anything! Reached maximum Request rank.

The Explorer Visited 150 locations.

Woah! Earn all the other trophies.

The Twilight of the Gods Reach the story chapter "The Twilight of the Gods."

Change of Mood Changed Plachta's appearance.

Fivepeat This is your real power, child? Show me it's not luck by winning 5 Ranked Matches in a row!

Special Mission Accomplished Clear a special mission for the first time.

Solitude Obtained the almighty power of sovereignty.

More Like Rean QUARTZ-er Gathered all 28 varieties of master quartz.

Chapter 9 Speedrun Complete a Speedrun of Chapter 9 below the target time.

Pit Master Discover and fight Hidden Kombatant 3 in Arcade Ladder

Crown of Nightmares Completed the game on nightmare difficulty.

The Wings of Solidarity Obtain the decoration given to all members of a squad that has displayed solidarity and excellence in teamwork.

The Cauldron of Knowledge Cauldron of Knowledge stolen by Meklet and Atomina.

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Reaper Defeated the Harvester ("The Golems of Amgarrak" downloadable content)

Quill Tosser Killed a Tollusk using only Ground Urchins.

Excellence in Armament Obtain the decoration presented to a squad shown to have procured a robust and effective arsenal through hard work and thorough development.

The Two Idols Reach the story chapter "The Two Idols."

A Deeper Bond: Sinon Complete Sinon's side story.
"Sinon is an indispensable part of this team, and an important friend."

Being a Solo Player Isn't So Bad Complete a total of 10 Side Quests, Extra Quests,
and/or Multiplayer Quests with a party consisting
of any single character.

Wander and the Forbidden Clear the game in hard difficulty

The Philanthropist Gave 50 presents.

Beyond the Infinite Watched over Ringo and her teammates' departure.