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