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.
Achieved Rank 40.
Used Rebirth to start again!
Saved your first Little Sister in a non-private match.
Achieved Rank 30.
Played at least one non-private match on each multiplayer map.
Won a non-private match in each of the 6 new maps.
Achieved Rank 20.
Played at least one non-private match on each downloadable content map.
Achieved Rank 10.
Completed your first trial in a non-private match.
Took down your first Big Daddy in a non-private match.
Completed all bonus Protector Trials
Earned an A rank in all Protector Trials
Paid your respects to the founder of Rapture.
Finished the game without using Vita-Chambers.
Finished the game on the hardest difficulty level.
Found every Power to the People weapon upgrade in the game.
Got through a Gather with no damage and no one getting to the Little Sister.
Earned 36 stars in the Protector Trials
Collected 50% of the ADAM available in all Protector Trials
Earned 18 stars in the Protector Trials
Won your first non-private match.
Collected 100% of the ADAM in a single Protector Trial
Earned 6 stars in the Protector Trials
Completed your first non-private match.
Scored your first kill in a non-private match.
Became a Big Daddy for the first time in a non-private match.
Escaped Rapture.
Headed to the surface on the side of Sinclair's escape pod.
Killed 30 enemies using only Traps.
Found 100 audio diaries.
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.
Gained access to Lamb's stronghold.
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.
Gathered 600 ADAM with Little Sisters.
Killed 50 enemies using only hacked Security.
Defeated the Preacher.
Killed an enemy with its own projectile.
Bought one Plasmid or Tonic Slot at a Gatherer's Garden.
Spent 2000 dollars at Vending Machines.
Confronted Lamb's lieutenant in Pauper's Drop.
Defended yourself against the Big Sister without dying.
Maxed out one Research Track.
Defeated 3 Big Daddies without dying during the fight.
Researched a Splicer with the Research Camera.
Installed the third upgrade to a weapon.
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.
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