Terramonium

Destroyed the Destroyer Killed the Vault Boss

Fully Researched Nitro Splicer Fully research the Nitro Splicer

Blessed Select a Standing Stone blessing

Lucky Winner Hit the jackpot at a slot machine

Fully Researched Little Sister Fully research the Little Sister

Wrecking Ball Stop the unstoppable

Irony The player has taken a picture of Sander Cohen's corpse

Riddle Resolver Solve 85% of Riddler challenges

Five Fully Upgraded Weapons Fully upgrade five weapons

Mano-A-Mano Defeat Titan henchman without using Batarangs (any play mode)

Lost And Found Uncover the secret of Arkham City

Sandstorm We are legion

Perfect Lover Cooked a meal, cleaned the apartment, took a shower, wore the elegant dress and put on some music.

Made in New Haven Completed all missions in the Rust Commons

Careful, He Bites Killed 15 enemies with the Hunter's action skill

Can't We Get BEYOND Thunderdome? Emerged victorious from an arena match

Fully Researched Bouncer Fully research the Bouncer

Aerial Assassin In the Main Campaign, killed 20 enemies with a Sky-Line Strike.

The First Step Join the Minutemen

Ding! Sleepless Earned level 40

Possessive Spy Finished the mission using only the Sheik.

Reckless Abandon Killed 15 enemies with the Berserker's action skill

Hide And Seek A deadly game of hide and seek

You're on a boat! I bet you never thought you'd be here

Wardrobe Malfunction Unlock your first change of clothing.

Family Matters Rescue Sly's long lost Cooper relative in Episode 1.

Crack The E Nigma Solve every riddle on the island

Speedy McSpeederton Raced around the Ludicrous Speedway in record time

Chose Afterlife Entered the Infraworld.

Fully Loaded Rescued enough Claptraps to earn 42 inventory slots

World's Greatest Detective Spirit of Amadeus Arkham revealed

Sanctuary Complete "Sanctuary"

Commonwealth Citizen Reach Level 10

Apprentice Reach Level 5

Ghost Train Fight for survival

Touchdown! Get a Touchdown

IQ Test Solve the first riddle

Bleak Falls Barrow Complete "Bleak Falls Barrow"

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

Freefall Don't look down

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

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

Exit Stage Right All the world is a stage

Dragon Soul Absorb a dragon soul

A Friend in Need Find and free Dandelion.

Research PhD Max out all possible research

Ding! Champion Earned level 50

Brick Master Win the brick throwing contest

In Love with Ryan Slept with Ryan.

Avid Inventor Successfully invent at least 100 items