Full list of all 68 BioShock 2 achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 60 achievements, and there is 1 DLC pack containing 8 achievements.
Earned an A rank in all Protector Trials
Completed all bonus Protector Trials
Earned 36 stars in the Protector Trials
Collected 50% of the ADAM available in all Protector Trials
Earned 18 stars in the Protector Trials
Finished the game on the hardest difficulty level.
Saved every Little Sister and spared Grace, Stanley and Gil.
Used Rebirth to start again!
Finished the game without using Vita-Chambers.
Found every Power to the People weapon upgrade in the game.
Found or purchased all 11 basic Plasmid types.
Completed all research on every subject in Rapture.
Found 100 audio diaries.
Gathered 600 ADAM with Little Sisters.
Earned 6 stars in the Protector Trials
Collected 100% of the ADAM in a single Protector Trial
Achieved Rank 40.
Got through a Gather with no damage and no one getting to the Little Sister.
Killed 30 enemies using only Traps.
Escaped Rapture.
Headed to the surface on the side of Sinclair's escape pod.
Reunited with your original Little Sister.
Fully upgraded to the maximum number of Plasmid Slots.
Gained access to Lamb's stronghold.
Maxed out one Research Track.
Fully upgraded one Plasmid to the Level 3 version.
Dealt with every Little Sister.
Uncovered the secret of Dionysus Park.
Hacked 30 machines at a distance with the Hack Tool.
Killed 50 enemies using only hacked Security.
Defeated the Preacher.
Achieved Rank 30.
Killed an enemy with its own projectile.
Spent 2000 dollars at Vending Machines.
Confronted Lamb's lieutenant in Pauper's Drop.
Defeated 3 Big Daddies without dying during the fight.
Achieved Rank 20.
Played at least one non-private match on each multiplayer map.
Won a non-private match in each of the 6 new maps.
Saved your first Little Sister in a non-private match.
Achieved Rank 10.
Played at least one non-private match on each downloadable content map.
Took down your first Big Daddy in a non-private match.
Completed your first trial in a non-private match.
Won your first non-private match.
Became a Big Daddy for the first time in a non-private match.
Completed your first non-private match.
Scored your first kill in a non-private match.
Researched a Splicer with the Research Camera.
Installed the third upgrade to a weapon.
Joined forces with Sinclair in Ryan Amusements.
Bought one Plasmid or Tonic Slot at a Gatherer's Garden.
Defended yourself against the Big Sister without dying.
Paid your respects to the founder of Rapture.
Adopted a new Little Sister for the first time.
Hacked one of each kind of machine.
Upgraded a weapon at a Power to the People Station.
Defended yourself against Lamb's assault in the train station.
Used the Hack Tool to hack an object at a distance.
Found your way back into the ruins of Rapture.
Destroyed all 10 Vacuum Bots in Minerva's Den
Got 9999 points in one game of Spitfire
Escaped Minerva's Den
Wrested control of the Thinker from Reed Wahl
Reached Computer Core Access
Resolved all the Little Sisters in Minerva's Den
Reached Rapture Central Computing Operations
Killed a Lancer Big Daddy