Finish the game on the hardest difficulty level.
Unlocked: 08 Mar 2013 20:32:08
Find all 14 Power to the People weapon upgrades in the game.
Unlocked: 08 Mar 2013 20:12:12
Max out research on all 9 research subjects.
Unlocked: 08 Mar 2013 19:54:01
Find 100 audio diaries.
Unlocked: 08 Mar 2013 19:29:20
Saved every Little Sister and spared Grace, Stanley and Gil.
Unlocked: 08 Mar 2013 19:25:43
Killed 50 enemies using only hacked Security.
Unlocked: 08 Mar 2013 04:30:04
Gather 600 ADAM with Little Sisters.
Unlocked: 08 Mar 2013 04:18:32
Max out one Research Track.
Unlocked: 07 Mar 2013 23:13:38
Killed an enemy with its own projectile.
Unlocked: 07 Mar 2013 22:36:55
Get through a Gather with no damage and no one getting to the Little Sister.
Unlocked: 07 Mar 2013 21:57:41
Trap Master
15Kill 30 enemies using only Traps.
Unlocked: 07 Mar 2013 21:04:42
Achieve Rank 40.
Unlocked: 23 Jun 2011 15:31:58
Skin Job
20Achieve Rank 30.
Unlocked: 21 Jun 2011 19:45:30
Little Moth
20Achieve Rank 20.
Unlocked: 14 Aug 2010 04:00:01
Become a Big Daddy for the first time in a non-private match.
Unlocked: 14 Aug 2010 03:19:09
Paid your respects to the founder of Rapture.
Unlocked: 15 Feb 2010 17:02:47
Play at least one non-private match on each multiplayer map.
Unlocked: 10 Feb 2010 21:36:33
Parasite
10Achieve Rank 10.
Unlocked: 10 Feb 2010 18:49:37
Mother Goose
20Save your first Little Sister in a non-private match.
Unlocked: 10 Feb 2010 16:13:22
Take down your first Big Daddy in a non-private match.
Unlocked: 10 Feb 2010 00:46:45
Complete your first trial in a non-private match.
Unlocked: 10 Feb 2010 00:13:21
Complete your first non-private match.
Unlocked: 09 Feb 2010 23:24:15
Win your first non-private match.
Unlocked: 09 Feb 2010 23:24:15
Score your first kill in a non-private match.
Unlocked: 09 Feb 2010 23:18:45
Escaped Rapture.
Unlocked: 09 Feb 2010 22:57:59
Finish the game without using Vita-Chambers.
Unlocked: 09 Feb 2010 22:57:59
Headed to the surface on the side of Sinclair's escape pod.
Unlocked: 09 Feb 2010 22:55:49
All Plasmids
20Find or purchase all 11 basic Plasmid types.
Unlocked: 09 Feb 2010 22:12:53
Reunited with your original Little Sister.
Unlocked: 09 Feb 2010 22:12:49
Fully upgrade to the maximum number of Plasmid Slots.
Unlocked: 09 Feb 2010 22:12:47
Gained access to Lamb’s stronghold.
Unlocked: 09 Feb 2010 21:54:03
Either Harvest or Save every Little Sister in the game.
Unlocked: 09 Feb 2010 21:41:47
Fully upgrade one of your Plasmids to the level 3 version at a Gatherer's Garden.
Unlocked: 09 Feb 2010 20:58:27
Uncovered the secret of Dionysus Park.
Unlocked: 09 Feb 2010 20:42:02
Hack 30 machines at a distance with the Hack Tool.
Unlocked: 09 Feb 2010 20:34:32
Install the third and final upgrade to any of your weapons.
Unlocked: 09 Feb 2010 20:12:58
Defeated the Preacher.
Unlocked: 09 Feb 2010 18:34:46
Big Spender
15Spend 2000 dollars at Vending Machines.
Unlocked: 09 Feb 2010 18:00:32
Confronted Lamb’s lieutenant in Pauper’s Drop.
Unlocked: 09 Feb 2010 17:38:15
Grand Daddy
25Defeat 3 Big Daddies without dying during the fight.
Unlocked: 09 Feb 2010 17:20:52
Research a Splicer with the Research Camera.
Unlocked: 09 Feb 2010 17:07:48
Buy one Plasmid or Tonic Slot at a Gatherer's Garden.
Unlocked: 09 Feb 2010 16:59:42
Joined forces with Sinclair in Ryan Amusements.
Unlocked: 09 Feb 2010 16:51:39
Defended yourself against the Big Sister without dying.
Unlocked: 09 Feb 2010 16:49:20
Successfully hack at least one of every type of machine.
Unlocked: 09 Feb 2010 16:38:03
Adopted a new Little Sister for the first time.
Unlocked: 09 Feb 2010 16:19:48
Upgrade any weapon at a Power to the People Station.
Unlocked: 09 Feb 2010 16:10:45
Defended yourself against Lamb's assault in the train station.
Unlocked: 09 Feb 2010 16:05:54
Used the Hack Tool to hack an object at a distance.
Unlocked: 09 Feb 2010 15:47:19
Found your way back into the ruins of Rapture.
Unlocked: 09 Feb 2010 15:45:25
Reincarnation
100Use Rebirth to start again!
Unlocked: 03 Jul 2011 23:42:50
Territorial
25Win a non-private match in each of the 6 new maps.
Unlocked: 20 Jun 2011 01:26:57
Play at least one non-private match on each downloadable content map.
Unlocked: 20 Jun 2011 01:00:01
Earn an A rank in all Protector Trials
Unlocked: 09 Mar 2013 02:55:03
Collect 100% of the ADAM in a single Protector Trial
Unlocked: 09 Mar 2013 00:00:37
Completed all bonus Protector Trials
Unlocked: 10 Feb 2011 22:17:13
Earn 36 stars in the Protector Trials
Unlocked: 10 Feb 2011 21:37:09
Collect 50% of the ADAM available in all Protector Trials
Unlocked: 10 Feb 2011 18:29:57
Acid Test
10Earn 18 stars in the Protector Trial
Unlocked: 10 Feb 2011 18:04:27
Earn 6 stars in the Protector Trials
Unlocked: 10 Feb 2011 17:16:31
Destroy all 10 Vacuum Bots in Minerva's Den
Unlocked: 08 Mar 2013 23:51:23
Got 9999 points in one game of Spitfire
Unlocked: 08 Mar 2013 23:39:58
Escaped Minerva's Den
Unlocked: 09 Sep 2010 21:53:11
Wrested control of the Thinker from Reed Wahl
Unlocked: 09 Sep 2010 21:46:22
Reached Computer Core Access
Unlocked: 09 Sep 2010 21:33:04
ADAM Addict
10Resolve all the Little Sisters in Minerva's Den
Unlocked: 09 Sep 2010 21:23:14
Reached Rapture Central Computing Operations
Unlocked: 09 Sep 2010 20:17:28
Kill a Lancer Big Daddy
Unlocked: 09 Sep 2010 19:32:32