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.
Completed all bonus Protector Trials
Earned 36 stars in the Protector Trials
Earned an A rank in all Protector Trials
Collected 50% of the ADAM available in all Protector Trials
Earned 18 stars in the Protector Trials
Earned 6 stars in the Protector Trials
Collected 100% of the ADAM in a single Protector Trial
Used Rebirth to start again!
Achieved Rank 40.
Achieved Rank 30.
Achieved Rank 20.
Escaped Rapture.
Finished the game on the hardest difficulty level.
Finished the game without using Vita-Chambers.
Headed to the surface on the side of Sinclair's escape pod.
Found every Power to the People weapon upgrade in the game.
Completed all research on every subject in Rapture.
Found or purchased all 11 basic Plasmid types.
Reunited with your original Little Sister.
Fully upgraded to the maximum number of Plasmid Slots.
Saved every Little Sister and spared Grace, Stanley and Gil.
Found 100 audio diaries.
Gained access to Lamb's stronghold.
Dealt with every Little Sister.
Uncovered the secret of Dionysus Park.
Fully upgraded one Plasmid to the Level 3 version.
Gathered 600 ADAM with Little Sisters.
Killed an enemy with its own projectile.
Defeated the Preacher.
Killed 50 enemies using only hacked Security.
Spent 2000 dollars at Vending Machines.
Confronted Lamb's lieutenant in Pauper's Drop.
Maxed out one Research Track.
Killed 30 enemies using only Traps.
Defeated 3 Big Daddies without dying during the fight.
Researched a Splicer with the Research Camera.
Installed the third upgrade to a weapon.
Hacked 30 machines at a distance with the Hack Tool.
Got through a Gather with no damage and no one getting to the Little Sister.
Bought one Plasmid or Tonic Slot at a Gatherer's Garden.
Joined forces with Sinclair in Ryan Amusements.
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.
Played at least one non-private match on each downloadable content map.
Won a non-private match in each of the 6 new maps.
Played at least one non-private match on each multiplayer map.
Achieved Rank 10.
Completed your first trial in a non-private match.
Took down your first Big Daddy in a non-private match.
Became a Big Daddy for the first time in a non-private match.
Completed your first non-private match.
Won your first non-private match.
Saved your first Little Sister in a non-private match.
Scored your first kill in a non-private match.
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
Destroyed all 10 Vacuum Bots in Minerva's Den
Got 9999 points in one game of Spitfire
Reached Rapture Central Computing Operations
Killed a Lancer Big Daddy