Full list of all 70 Batman: Arkham City achievements worth 1,500 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 20 achievements worth 500 Gamerscore.
There is only one way in
Hammer the point home
Answer the call for help
Find someone to play remote Batarang catch with
Destroy it all
Have 12 murderous dates with Calendar Man
Track down the serial killer
Collect all of Batman's gadgets and upgrades
Rescue the third hostage from Riddler
Rescue the fourth hostage from Riddler
Rescue the fifth hostage from Riddler
Rescue all the hostages from Riddler
Obtain 48 medals on the original Arkham City ranked maps (as Batman)
Obtain all 72 medals on the original Arkham City ranked maps (as Batman)
Obtain 36 medals on the original Arkham City campaigns (as Batman)
Perform a perfect combo including all of Batman's combat moves (any play mode)
Complete every challenge in Arkham City
Complete New Game Plus
Obtain all 108 medals on the original Arkham City campaigns (as Batman)
Obtain 72 medals on the original Arkham City campaigns (as Batman)
Stop all assaults in Arkham City
Obtain 24 medals on the original Arkham City ranked maps (as Batman)
Use 5 different Quickfire gadgets in one fight (any play mode)
All the world is a stage
Don't look down
Jump off the tallest building in Arkham City and glide for 1 minute without touching the ground.
Fight for survival
Stop the contract operative
Collect enough evidence to locate the gun for hire
Time is running out
Reunite the separated couple
Rescue the second hostage from Riddler
Reveal the mystery watcher
A deadly game of hide and seek
We are legion
Uncover the secret of Arkham City
Stop the phone booth killer
Stop the unstoppable
Complete one combat challenge without taking damage (any character)
Last man standing
Rescue the first hostage from Riddler
Solve the first riddle
Clear the airwaves
Complete a combo of 50 moves (any play mode, any character)
Complete all augmented reality training exercises
Save the medical volunteers
Answer a ringing phone
Save the damsel, but is she in distress?
A moment of remembrance
Become the Bat
Drop in on an old friend
Retrieve your stolen goods
Complete all 40 of the Catwoman Riddler grid items
Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)
Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)
Steal the score of a lifetime
Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)
Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)
Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)
Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)
Defuse all bombs in 3 minutes or less
Shield Bash 5 different thugs
Destroy all Harley Balloons
The joke's on who?
Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
Clean up the Dry Docks
Find a way into the secret base
No crimefighter should be without this
Zip Kick 5 different thugs
Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge