Pioxn

The Gift that Keeps on Giving Experienced all 9 Game Modes and all 9 Modifiers of the Mutator.

Gasoline Cowboy Rescue your allies with the Sherman while keeping your armor above 80% in Collateral Damage.

Powered by Steam Collect all the items (Steam Cells) on Airship

Whispers on the Wind Collect all ECHO logs on Xylourgos.
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Shelter from the Blizzard Arrived in the desolate mountains.

My Pet, Monster Complete all missions for "The Trouble With Clones..."

Click on door 430 five times Click on door 430 five times.

It's Art Find a permanent home for the squirrel statue.

Conservation Extract all wild animal species.

Supaa-Excellent! Shoot down a helicopter with a Saints Flow fireball.

Weapon of the Resistance Acquired a very flexible weapon.

A son of the land... Complete ''Ring of Fire''

Grin and Bear it Survive 18 bear attacks and kill the bear each time in Story Mode.

Too Big to Fail Complete A Gilded Cage.

Campaign Gold Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Well Prepared Select a Starting Location and use an Agency Pickup to smuggle an item into Paris.

That's Quite Challenging Complete all crew challenges on Gehenna.
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For the Night is Dark Endurance Co-op Challenge: Clear 3 Enemy Camps at night in a single expedition

Undertaker In The Final Reich, kill the Bomber with the shovel.

Secrets! Lies! Conspiracies, man! Found all Secrets!

I Do My Own Stunts Land on the Parachute Target during the rescue scene.

Analysis: Initiated Unlocked 20 Mystery Files.

Instinctive Reaction Chose all of the Heart decisions

Yes, Very Subtle In solo play, complete a level without using your Abilities, including rush and melee

How the West Was Done Complete all plot missions, side missions, and crew challenges on Gehenna.
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That Dream is Your Enemy No-one survived

Ghost ships are just a myth, right? Found all Pictures

#10 Downing Street Reach Career level 10.

Fragmerchant - Kill 5 Helghast using a single grenade Kill 5 Helghast at once using a single frag grenade

Equipped an Elite Coil or Weave Equipped an elite coil on a weapon or an elite weave on an outfit.

Teamwork Endurance Co-op Challenge: Warm up from freezing by standing next to a campfire lit by your partner

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Communication Skills Endurance Co-op Challenge: Kill 5 enemies that have been marked by your partner

Mean Streets Eliminated the threat from the shadows.

The Thinker Consider Thought Cloud entries 100 times.

Into the Sunset Salim returned home to his son

First Contact Destroy all enemy spacecraft during the chase scene.

I Felt Your Presence Witness the cult's meeting

Xenaphobe Kill Space Brutina.

Alone Time Endurance Co-op Challenge: Spend at least one day more than 60 meters apart

Shattered Break 20 Panes of Glass.

All New Machines Scanned Encountered and Focus scanned every new machine in the Burning Shores.
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Best star pilot in the galaxy Destroy 10 TIE fighters within 2 minutes on the Beggar's Canyon mission

Ante Up! Reach Ante 4

The Thing Eric helped Rachel purge her infection

Wanderer Discovered half of the secrets in Torch City.

"Teamwork" Endurance Co-op Challenge: Collect an Artifact while your partner is down

Speedster Defeat the World of Chaos in the End of the World within 15 hours.

A Breath of Freedom Acquired a tool to overcome biological limits.

Get Away from Her! Endurance Co-op Challenge: Kill an enemy melee attacking your partner