Here is the full list of all 64 Batman: Arkham City - there are Game of the Year Edition achievements.
Obtain 24 medals on the original Arkham City maps (as Batman)
Track down the serial killer
Stop the phone booth killer
Stop all assaults in Arkham City
Retrieve your stolen goods
Rescue all the hostages from Riddler
Rescue the fifth hostage from Riddler
Reveal the mystery watcher
Time is running out
Perform a perfect combo including all of Batman's combat moves (any play mode)
Stop the contract operative
Complete all 40 of the Catwoman Riddler grid items
All the world is a stage
Don't look down
Rescue the fourth hostage from Riddler
Collect all of Batman's gadgets and upgrades
Steal the score of a lifetime
Fight for survival
The joke's on who?
Defuse all bombs in 3 minutes or less
Clean up the Dry Docks
Find a way into the secret base
No crimefighter should be without this
Shield Bash 5 different thugs
Zip Kick 5 different thugs
Use 5 different Quickfire gadgets in one fight (any play mode)
Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge
Rescue the third hostage from Riddler
Reunite the separated couple
A deadly game of hide and seek
Destroy it all
A moment of remembrance
We are legion
Uncover the secret of Arkham City
Rescue the second hostage from Riddler
Stop the unstoppable
Last man standing
Complete one combat challenge without taking damage (any character)
Clear the airwaves
Rescue the first hostage from Riddler
Solve the first riddle
Drop in on an old friend
Hammer the point home
There is only one way in
Complete all augmented reality training exercises
Save the medical volunteers
Save the damsel, but is she in distress?
Become the Bat
Obtain 48 medals on the original Arkham City maps (as Batman)
Obtain all 72 medals on the original Arkham City maps (as Batman)
Obtain 36 medals on the original Arkham City campaigns (as Batman)
Obtain 72 medals on the original Arkham City campaigns (as Batman)
Obtain all 108 medals on the original Arkham City campaigns (as Batman)
Complete New Game Plus
Have 12 murderous dates with Calendar Man
Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddlers Revenge (as Batman)
Obtain all 72 medals on the original Arkham City maps (as Catwoman)
Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)
Obtain 78 medals on the original Arkham City and Robin Bundle Pack maps (as Robin)
Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)
Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack maps (as Nightwing)
Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)
Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
Destroy all Harley Balloons