ParadoxCluster

World's Greatest Detective Spirit of Amadeus Arkham revealed

One Mean Mother Defeat Silitha

Look Out Below Completed Episode 12.

Chose Afterlife Entered the Infraworld.

Pain Builds Character Finish the game on hard difficulty.

Knucklehead Kill a total of thirty enemies using melee attacks.

Industrial Accident In the Main Campaign, killed 20 enemies with a Sky-Hook Execution.

Hairdresser Kill five enemies in rapid succession with a headshot.

Rise and Fall After an uruk kills you to become a Captain, help him become a Warchief, then kill him.

Kids Just Don't Understand Completed Episode 13.

Into the Void Collect the Voidwalker

IQ Test Solve the first riddle

Practice Makes Perfect Fully develop any skill.

Speedy McSpeederton Raced around the Ludicrous Speedway in record time

Ghost Train Fight for survival

Good as New Restored a Flower Shrine.

Counterintelligence Complete Chapter 2 in Ada's campaign.

Darkness Looms Complete the final mission of the Missing Persons Investigation

Treasure Hunter Search 150 caskets
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Don't Mess With the Money! Complete Bank Heist quest.

Bacon! Kill a razorback boar using a Molotov cocktail

Fully Loaded Rescued enough Claptraps to earn 42 inventory slots

Power Cycle Participate in 5 different City Games

Petrol Head Drive at least thirty different vehicles.

Tonic Collector Collect or Invent 58 Tonics in the Physical, Engineering and Combat tracks

The Lost Tribe Completed Episode 14.

Burning Vengeance Perform an Execution on a flaming Berserker.

Found Cohen's Room The player has entered Sander Cohen's personal quarters

Master Blaster Kill 2 multiplayer enemies with a single explosive.

Memories of Another World Completed Episode 15.

High Flier Kill 5 duskbats without touching the ground
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Down Boy! Kill a zip-lining enemy player in multiplayer.

Freefall Don't look down

Arkham City Sirens Drop in on an old friend

This Takes Me Back Complete Chapter 3 in Ada's campaign.

Children of the Past Completed Episode 16.

Tips Appreciated Tip Moxxi.

Geolocated Check in at every Hotspot

No Power in Numbers Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.

Casual Girl Ordered a pizza, watched some TV and wore something casual.

A Friend in Need Find and free Dandelion.

Into the Woods Discovered the Forest.

Exit Stage Right All the world is a stage

"This Guy Is Really Good" Score 200 points at the shooting range.

The Chosen Few Uncover the remains of all Jacob's disciples

Monkey Around In multiplayer, escape death 3 times by using the rope ascender.

Leader of the Pack Compare Statistics with Friends

Ada's Demise Complete Chapter 4 in Ada's campaign.

Lightning Rod Defeat Steropes the Lightning Bringer.

Stinking Rebels Brand 5 Bodyguards of a Warchief, turning them against him in combat.