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Crack The E Nigma Solve every riddle on the island

Get Off My Cloud Get 100 High Fall take downs.

No Matter What - Normal Complete the game on Normal

World's Greatest Detective Spirit of Amadeus Arkham revealed

Sanity Check Collect all 8 Burner Phones

Sharing Is Caring Share each type of discovery with friends once.

Look Out Below Completed Episode 12.

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

IQ Test Solve the first riddle

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.

Extinguished Defeat Surtr

Fireproof Complete the Screw of Archimedes without getting hit by the Fire Traps

Darkness Looms Complete the final mission of the Missing Persons Investigation

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

Sea Legs Complete all naval contracts.

Counterintelligence Complete Chapter 2 in Ada's campaign.

Burning Vengeance Perform an Execution on a flaming Berserker.

The Lost Tribe Completed Episode 14.

Power Cycle Participate in 5 different City Games

Memories of Another World Completed Episode 15.

Arkham City Sirens Drop in on an old friend

Master Blaster Kill 2 multiplayer enemies with a single explosive.

Down Boy! Kill a zip-lining enemy player in multiplayer.

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

Children of the Past Completed Episode 16.

Geolocated Check in at every Hotspot

A Friend in Need Find and free Dandelion.

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

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

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

Fading Light Completed Episode 17.

Three for One Earn a Triple Kill with a Level 1 Super Attack

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

Revoking Client Privileges Complete the final mission in the Human Traffic Investigation

Peephole Complete every Privacy Invasion

Saturday Night Special Complete the final mission in the Weapons Trade Investigation

What's Next? Complete Chapter 5 in Ada's campaign.

Source of The Darkness Meet Hela for the first time on the Bridge

Basest Base Complete every Gang Hideout

We have Overtime! - Working Weekends? Enter Overtime!

Casey Jones Take down 25 enemies while riding on a moving train.

Escaped Complete the Labyrinth Shard Challenge

Up to the Challenge Beat the Challenge of Olympus

Avid Inventor Successfully invent at least 100 items

Different Perspectives Complete the Tower Shard Challenge

Tag Teamed Hit 100 Enemies with the Oath Stone of Orkos

Fire in the Hole Destroy 10 monster nests using bombs.

Cure For The Plague Complete the Swamp Shard Challenge

Trust Your Senses Complete the Blindness Shard Challenge