DarthPratchett

Reaper Defeated the Harvester ("The Golems of Amgarrak" downloadable content)

King of Kings Capture 15 Kingdoms

Two Birds Smack a bomb so that kills two or more enemies (Individual)

The Postman Delivered the journal to Lucien.

Just the Beginning Complete Tower of Doom.

Obtainer of Rare Antiquities Explore any kingdom

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Let it Snow Receive the Extreme Environment Suit (XE Suit)

Drilling for Justice Assemble the cryonucleation tunneller - the cryodrill

Worst Nightmare Master the Worst Nightmare Dark Knight track

Hordemaster Unlock 100 different Troops

Flipper Flip the level 6 times in Protector mode

Overkill Destroy six enemies with one Beam Shot (Individual)

Crusade - Chapter XIII Finish the levels from Chapter XIII in Knight difficulty

Gold Digger Complete all 3 Tiers of the Challenge “Loot Master”.

Stalact-tactician Takedown 2 enemies with one stalactite

Varterral's Fall Defeated the varterral on Hard or Nightmare difficulty ("Witch Hunt" downloadable content)

For Auld Lang Syne Stop Freeze and bring Boyle to justice

Boosted! Hold Super Boost for 15 seconds in Protector mode

Splicer God Complete the "Wrath of the Machine" raid on heroic difficulty.

Snowjob Get 3 enemies frozen in one attack

Plunderer Gather 10,000 SP.

Down with the Revolution Stop Anarky thug operations in South Gotham

Legend of the Dark Knight Complete all Dark Knight challenges

TBoGT: Past the Velvet Rope Score 80% or above in all missions. (The Ballad of Gay Tony)

Close Call Win a race by a margin of less than 0.1s

Golden Jubilee Reach level 50

Epic victory - Chapter XIII Finish the levels from Chapter XIII in Paladin difficulty

Tortoise Win a race without using boost

Survivor Defeat 5 Bosses in a row in Survival Mode

TBoGT: Gold Star Score 100% in all missions. (The Ballad of Gay Tony)

Ogre's Keeper Keep the initial ogre alive as your thrall throughout the entire module. ("Darkspawn Chronicles" downloadable content)

Save the last humans Lifetime total of 1,000 humans saved in Survival mode

Master Wayne Take no damage when playing as Bruce Wayne

A Secret Stitched Together Gathered all of the research notes in Amgarrak ("The Golems of Amgarrak" downloadable content)

There Are Parts Everywhere Multi-Kill 3 car soldiers at once using an explosive weapon in Campaign or Escalation.

Leading The Way Win every Bonus Round.

Arcade Master Complete any Arcade Chapter below the target time (General)

Don't leave me! Destroy 10 consecutive Sentinels before they escape in Survival mode

Medalist Obtain all medals on the original Ranked Maps in Challenge mode (as Batman)

Olympian Obtain all medals on the original Campaign maps in Challenge mode (as Batman)

Perfection Complete every event and Season Championship in first place.

Perfectionist Obtain all the medals on Custom maps in Challenge mode

50 down, I don't know how many to go Complete 50 feats

Breaking the Ice Free all civilians frozen in cryogenic ice

I Am The Night Finish I Am The Night Mode

NAVDML Complete Mefitis on Veteran difficulty with a custom ship, with every ability set to zero

Grand Master Complete the full game (Individual)

Live to die another day Survive to see the dawn of the 5th day in Survival mode