Argetlam

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Vic Vos Reached a total of 20,000 or more Camaraderie.

Ultimate Pork Roast Recipe Pigsy's Perfect 10: Use all 4 devices on one enemy.

Pure Lunacy Complete Dead Space™ 3 Awakened in Pure Survival Mode

Quadruplets! Pigsy's Perfect 10: Ally 4 enemies using one single Ally device.

The Enduring Vigil Acquired all upgrades for Vigil's Keep ("Dragon Age: Origins - Awakening" expansion)

Centennial Acquire 100% of the Stars

Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

Year 3072 Completed! Complete the Future City time zone

Year 199X Completed! Complete the Post-Apocalypse time zone

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

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Impartiality Complete any level using at least 6 different members of the Super Time Force

Hella Fun Complete 5 HellaDeck levels

The First Mission Clear one mission in Mission mode.

Shields Up! Successfully defend yourself with your shield 20 times

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

Through the Looking Glass Completed the scrying ritual ("Witch Hunt" downloadable content)

Witch Hunter Completed "Witch Hunt" ("Witch Hunt" downloadable content)

Walk in the Park Complete the game on hard using hardcore mode

Cool Cat Counter Attack Dodge then Hit 15 Enemies as Jaguar

Silence is Golden You completed The Brigmore Witches without alerting anyone

Maturity Through Discipline Clear all of the lessons in the Tutorial.

Thrillseeker Unlock Carnival of the Dead

Trine 2 Hard Earn all Trophies in Trine 2

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

I am THE expert on weapons Obtained all weapons (excluding weapons obtained via password).

Greatest Tag-Team in History Defeat both Lightning Skeleton arenas in The Great Temple on Hard Mode, with 2 or more players (or as Javier Jaguar)

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

Strangelove's Thoughts Read all of Strangelove's memoirs.

High Roller Complete the "Iron Clad" Special Ops mission on Veteran difficulty.

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

Music Lover Collect all harmonica melodies in the SAM'S STORY chapter.

Welcome to MY World Defeat 25 Enemies in the Living World as Uay Pek

A for effort Attain a Time Trial star rating of 35

Occasio Calva Complete Kairos Gate.

Skilled Adversary In IX have a Challenge banner with all 9 medallions

Swimming with the Fishes In Voyage of Despair, kill 50 zombies that are underwater in a single game

A New Protagonist Earned the top ranking in the Friendly Match.

9600 BC Completed! Complete the Ancient Atlantis time zone

Dressed for the Fest Collect all of the boy's costumes and equip them.

Year 673 Completed! Complete the Medieval time zone

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

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Collector Acquire all items available in normal time attack

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

Factory Zero You survived Hei Zhen Zhu and RBS using no Praxis kits, weapons, grenades or mines. Whoa.

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

World Peace... For Now Beat the game on all difficulties.