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Duet Play an instrument next to another player, who's playing a different instrument

Pervert Hang around the room with Quagmire in a baby costume for 30 seconds

Specter Officer Reach max level with one class in the Cooperative campaign.

Z-Genocider 2: Genocide Harder Kill 53,596 zombies

Horsepower Completionist Gain all stars in 'Horsepower'.

Fully Kitted 2.0 Unlock all Upgrades in the Bloodline expansion

NDA Protocol Destroyed the Synthesizer.

Elements Completionist Gain all stars in 'Elements'.

Took this thing on a test flight Complete Arcade mode with a custom made ship, at Veteran difficulty level

Perfect 10 Pigsy's Perfect 10: Finish the Shooting Gallery under 40 seconds without shooting any pin-ups.

Provocateur Collected and assembled the Battledress of the Provocateur. ("Leliana's Song" downloadable content)

A Horrible Night To Have a Curse Survive the nightmare

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Baranor the Conqueror Complete the Desolation of Mordor with a Gold Rating.

Monster Farmer Kill at least 300 of the same type of monster.

Taking All The Credit Get 140,000 points in the credits minigame.

Four Birds, One Stone Pigsy's Perfect 10: Kill 4 Mechs with 1 Bomb device.

RPM Completionist Gain all stars in 'RPM'.

Greenlight Protocol Powered the reactor.

Spectrum Needler Buddy Acquired Spectrum Gatling, The Needler, and Udder Buddy.

Thy Strength Runneth Over Life level or magic level reached 99.

You Never Forget Your First Have a first kiss.

Death of Comedy Use every type of novelty weapon on a zombie

You have your moments Get 5000 Objective Score while playing as any Hero (Multiplayer)

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Packrat Collect 50% of Data Drive files in the Bloodline expansion

Keeper of the Vigil Saved Vigil's Keep ("Dragon Age: Origins - Awakening" expansion)

Seal the Deal Complete a Triumph Seal.

Forever Marked Progress the story to unlock.

Compliments to the Chef Complete your quest on Inkwell Isle IV

Pursuit of Knowledge Filled 80% of the Datalog.

Lucky Stiff Found Lucky Montoya's body.

Blood Bank Kill 10,000 enemies

Things That Go Ka-Boom Learn how to craft Exploding Arrows

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

The Bigger They Are... Destroy a total of 100 Custom Cyborgs during story mode.

Turret-Syndrome Kill a total of 100 Enemies while using stationary gun.

Electric Whisper Learn how to craft Electric Arrows

Moneybags Have 15000 credits in the bank in Outbreak.

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

New Recruit Get a total score of 50,000.

Stunning! Pigsy's Perfect 10: Stun 5 enemies using one single EMP device.

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

That's the Spirit! Earn all 75 Stamps available in the Wild Spirits Career

Ethereal Spike Obtain the Ethereal Spike artifact.

Mutt And Jeff Asked a companion to be the Bad Inspector.

BADGER! Ride a Badger

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

Bane of Thedas Handed victory to the archdemon by killing Ferelden's last Grey Warden. ("Darkspawn Chronicles" downloadable content)

Insanity II Complete two games in Mass Effect Legendary Edition on Insanity without changing difficulty