Full list of all 68 BioShock 2 achievements worth 1,400 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 18 achievements worth 400 Gamerscore.
Won your first non-private match.
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.
Found your way back into the ruins of Rapture.
Defended yourself against Lamb's assault in the train station.
Joined forces with Sinclair in Ryan Amusements.
Confronted Lamb’s lieutenant in Pauper’s Drop.
Bought one Plasmid or Tonic Slot at a Gatherer's Garden.
Upgraded a weapon at a Power to the People Station.
Installed the third upgrade to a weapon.
Used the Hack Tool to hack an object at a distance.
Hacked one of each kind of machine.
Researched a Splicer with the Research Camera.
Maxed out one Research Track.
Defeated 3 Big Daddies without dying during the fight.
Adopted a new Little Sister for the first time.
Defended yourself against the Big Sister without dying.
Spent 2000 dollars at Vending Machines.
Defeated the Preacher.
Uncovered the secret of Dionysus Park.
Gained access to Lamb’s stronghold.
Reunited with your original Little Sister.
Headed to the surface on the side of Sinclair's escape pod.
Escaped Rapture.
Fully upgraded to the maximum number of Plasmid Slots.
Hacked 30 machines at a distance with the Hack Tool.
Completed all research on every subject in Rapture.
Gathered 600 ADAM with Little Sisters.
Fully upgraded one Plasmid to the Level 3 version.
Found or purchased all 11 basic Plasmid types.
Killed 50 enemies using only hacked Security.
Killed 30 enemies using only Traps.
Killed an enemy with its own projectile.
Got through a Gather with no damage and no one getting to the Little Sister.
Dealt with every Little Sister.
Finished the game on the hardest difficulty level.
Saved every Little Sister and spared Grace, Stanley and Gil.
Finished the game without using Vita-Chambers.
Found 100 audio diaries.
Found every Power to the People weapon upgrade in the game.
Paid your respects to the founder of Rapture.
Take down your first Big Daddy in a non-private match.
Save your first Little Sister in a non-private match.
Complete your first trial in a non-private match.
Achieve Rank 10.
Achieve Rank 20.
Achieve Rank 30.
Achieve Rank 40.
Play at least one non-private match on each multiplayer map.
Play at least one non-private match on each downloadable content map.
Win a non-private match in each of the 6 new maps.
Use Rebirth to start again!
Collected 50% of the ADAM available in all Protector Trials
Earned 6 stars in the Protector Trials
Earned 18 stars in the Protector Trials
Collected 100% of the ADAM in a single Protector Trial
Earn 36 stars in the Protector Trials
Earn an A rank in all Protector Trials
Completed all bonus Protector Trials
Got 9999 points in one game of Spitfire
Reached Rapture Central Computing Operations
Reached Computer Core Access
Escaped Minerva's Den
Wrested control of the Thinker from Reed Wahl
Destroyed all 10 Vacuum Bots in Minerva's Den
Resolved all the Little Sisters in Minerva's Den
Killed a Lancer Big Daddy