Finish the game on the hardest difficulty level.
Unlocked: 21 Apr 2011 23:23:07
Achieve Rank 40.
Unlocked: 17 Sep 2010 18:09:49
Killed 50 enemies using only hacked Security.
Unlocked: 01 Sep 2010 14:01:42
Skin Job
20Achieve Rank 30.
Unlocked: 24 Aug 2010 12:58:55
Mother Goose
20Save your first Little Sister in a non-private match.
Unlocked: 22 Aug 2010 11:29:51
Paid your respects to the founder of Rapture.
Unlocked: 21 Mar 2010 21:33:03
Play at least one non-private match on each multiplayer map.
Unlocked: 20 Mar 2010 23:31:19
Little Moth
20Achieve Rank 20.
Unlocked: 20 Mar 2010 22:32:47
Parasite
10Achieve Rank 10.
Unlocked: 16 Mar 2010 18:04:30
Become a Big Daddy for the first time in a non-private match.
Unlocked: 15 Mar 2010 22:10:21
Complete your first trial in a non-private match.
Unlocked: 15 Mar 2010 22:07:24
Win your first non-private match.
Unlocked: 15 Mar 2010 21:39:28
Escaped Rapture.
Unlocked: 15 Mar 2010 21:16:22
Finish the game without using Vita-Chambers.
Unlocked: 15 Mar 2010 21:16:21
Headed to the surface on the side of Sinclair's escape pod.
Unlocked: 15 Mar 2010 21:14:11
Find 100 audio diaries.
Unlocked: 15 Mar 2010 20:35:07
Find all 14 Power to the People weapon upgrades in the game.
Unlocked: 15 Mar 2010 20:35:01
All Plasmids
20Find or purchase all 11 basic Plasmid types.
Unlocked: 15 Mar 2010 19:38:58
Reunited with your original Little Sister.
Unlocked: 15 Mar 2010 19:38:32
Fully upgrade to the maximum number of Plasmid Slots.
Unlocked: 15 Mar 2010 19:38:31
Saved every Little Sister and spared Grace, Stanley and Gil.
Unlocked: 14 Mar 2010 23:03:26
Gained access to Lamb’s stronghold.
Unlocked: 14 Mar 2010 23:02:49
Max out research on all 9 research subjects.
Unlocked: 14 Mar 2010 22:51:30
Either Harvest or Save every Little Sister in the game.
Unlocked: 14 Mar 2010 22:49:57
Trap Master
15Kill 30 enemies using only Traps.
Unlocked: 14 Mar 2010 22:40:16
Uncovered the secret of Dionysus Park.
Unlocked: 14 Mar 2010 21:12:46
Fully upgrade one of your Plasmids to the level 3 version at a Gatherer's Garden.
Unlocked: 14 Mar 2010 21:03:38
Gather 600 ADAM with Little Sisters.
Unlocked: 14 Mar 2010 20:37:21
Hack 30 machines at a distance with the Hack Tool.
Unlocked: 14 Mar 2010 20:02:28
Defeated the Preacher.
Unlocked: 14 Mar 2010 20:00:16
Big Spender
15Spend 2000 dollars at Vending Machines.
Unlocked: 14 Mar 2010 17:29:57
Buy one Plasmid or Tonic Slot at a Gatherer's Garden.
Unlocked: 14 Mar 2010 16:21:04
Get through a Gather with no damage and no one getting to the Little Sister.
Unlocked: 14 Mar 2010 16:01:42
Max out one Research Track.
Unlocked: 14 Mar 2010 15:56:13
Confronted Lamb’s lieutenant in Pauper’s Drop.
Unlocked: 14 Mar 2010 15:50:21
Killed an enemy with its own projectile.
Unlocked: 14 Mar 2010 15:28:26
Install the third and final upgrade to any of your weapons.
Unlocked: 14 Mar 2010 15:25:42
Grand Daddy
25Defeat 3 Big Daddies without dying during the fight.
Unlocked: 14 Mar 2010 15:17:19
Research a Splicer with the Research Camera.
Unlocked: 14 Mar 2010 15:07:44
Joined forces with Sinclair in Ryan Amusements.
Unlocked: 14 Mar 2010 14:35:00
Defended yourself against the Big Sister without dying.
Unlocked: 14 Mar 2010 14:30:51
Adopted a new Little Sister for the first time.
Unlocked: 14 Mar 2010 14:03:52
Successfully hack at least one of every type of machine.
Unlocked: 14 Mar 2010 13:57:45
Upgrade any weapon at a Power to the People Station.
Unlocked: 14 Mar 2010 13:49:10
Defended yourself against Lamb's assault in the train station.
Unlocked: 14 Mar 2010 13:40:39
Used the Hack Tool to hack an object at a distance.
Unlocked: 14 Mar 2010 12:52:14
Found your way back into the ruins of Rapture.
Unlocked: 14 Mar 2010 12:48:46
Complete your first non-private match.
Unlocked: 14 Mar 2010 12:11:03
Take down your first Big Daddy in a non-private match.
Unlocked: 14 Mar 2010 12:07:03
Score your first kill in a non-private match.
Unlocked: 14 Mar 2010 12:05:07
Reincarnation
100Use Rebirth to start again!
Unlocked: 14 Oct 2010 20:11:00
Territorial
25Win a non-private match in each of the 6 new maps.
Unlocked: 17 Sep 2010 19:04:12
Play at least one non-private match on each downloadable content map.
Unlocked: 17 Sep 2010 18:49:14
Earn an A rank in all Protector Trials
Unlocked: 17 Apr 2011 15:15:46
Completed all bonus Protector Trials
Unlocked: 17 Apr 2011 14:14:51
Earn 36 stars in the Protector Trials
Unlocked: 17 Apr 2011 13:12:53
Acid Test
10Earn 18 stars in the Protector Trial
Unlocked: 13 Apr 2011 20:31:12
Collect 50% of the ADAM available in all Protector Trials
Unlocked: 13 Apr 2011 20:22:16
Earn 6 stars in the Protector Trials
Unlocked: Offline
Collect 100% of the ADAM in a single Protector Trial
Unlocked: Offline
Escaped Minerva's Den
Unlocked: 17 Apr 2011 19:05:05
Wrested control of the Thinker from Reed Wahl
Unlocked: 17 Apr 2011 19:00:33
Reached Computer Core Access
Unlocked: 17 Apr 2011 18:49:26
ADAM Addict
10Resolve all the Little Sisters in Minerva's Den
Unlocked: 17 Apr 2011 18:46:28
Destroy all 10 Vacuum Bots in Minerva's Den
Unlocked: 17 Apr 2011 18:33:41
Got 9999 points in one game of Spitfire
Unlocked: 17 Apr 2011 17:52:46
Reached Rapture Central Computing Operations
Unlocked: 17 Apr 2011 17:32:22
Kill a Lancer Big Daddy
Unlocked: 17 Apr 2011 15:48:10