Complete the game on the hardest difficulty setting.
Unlocked: 20 Sep 2013 15:04:37
Research PhD
20Max out all possible research.
Unlocked: 14 Sep 2013 18:36:20
Complete the game without harvesting any Little Sisters.
Unlocked: 14 Sep 2013 13:14:20
The player has defeated Atlas
Unlocked: 14 Sep 2013 13:13:46
Fully research the Bouncer.
Unlocked: 14 Sep 2013 13:04:48
Successfully invent at least 100 items.
Unlocked: 14 Sep 2013 12:50:57
Historian
50Find every audio diary.
Unlocked: 14 Sep 2013 12:49:36
Either Harvest or Rescue every Little Sister in the game
Unlocked: 14 Sep 2013 12:44:58
The player has become a Big Daddy.
Unlocked: 14 Sep 2013 12:37:22
Acquire all upgrades for all weapons.
Unlocked: 14 Sep 2013 12:21:07
Collect or Invent 53 Tonics in the Physical, Engineering and Combat tracks.
Unlocked: 14 Sep 2013 12:12:12
Fully upgrade five weapons.
Unlocked: 14 Sep 2013 11:46:13
Fully research the Houdini Splicer.
Unlocked: 13 Sep 2013 11:50:52
Fully research the Rosie.
Unlocked: 13 Sep 2013 11:46:38
Fully research the Little Sister.
Unlocked: 13 Sep 2013 11:13:44
The player has broken Fontaine's mind control
Unlocked: 13 Sep 2013 10:57:20
Fully research the Nitro Splicer.
Unlocked: 13 Sep 2013 09:54:39
Fully upgrade four weapons.
Unlocked: 13 Sep 2013 09:52:05
The player has entered Sander Cohen's personal quarters.
Unlocked: 13 Sep 2013 09:51:57
Fully research the Thuggish Splicer.
Unlocked: 12 Sep 2013 20:30:02
Purchased every slot in all four Plasmid and Tonic tracks
Unlocked: 12 Sep 2013 20:28:27
The player has defeated Andrew Ryan
Unlocked: 12 Sep 2013 20:17:19
Take at least one photo in every research group.
Unlocked: 12 Sep 2013 20:07:34
Fully upgrade three weapons.
Unlocked: 12 Sep 2013 19:42:48
Fully research the Leadhead Splicer.
Unlocked: 12 Sep 2013 19:30:17
The player has taken a picture of Sander Cohen's corpse
Unlocked: 11 Sep 2013 20:33:16
Successfully complete 50 hacks.
Unlocked: 11 Sep 2013 20:29:36
Fully research the Spider Splicer.
Unlocked: 11 Sep 2013 20:01:15
Successfully invented all possible ammo types.
Unlocked: 11 Sep 2013 19:23:04
The player has completed Sander Cohen's great masterpiece
Unlocked: 11 Sep 2013 11:38:21
Fully upgrade two weapons.
Unlocked: 11 Sep 2013 10:40:01
Lucky Winner
10Hit the jackpot at a slot machine
Unlocked: 11 Sep 2013 10:21:43
The player has restored the forests of Arcadia
Unlocked: 10 Sep 2013 17:50:37
Purchased every slot in one of the Plasmid or Tonic tracks
Unlocked: 10 Sep 2013 17:23:03
Fully upgrade one weapon.
Unlocked: 10 Sep 2013 17:04:13
Successfully invent at least one item.
Unlocked: 10 Sep 2013 16:17:57
Acquire at least one weapon upgrade.
Unlocked: 27 Feb 2013 20:56:10
Successfully hack a security camera.
Unlocked: 27 Feb 2013 20:54:46
The player has defeated Peach Wilkins
Unlocked: 27 Feb 2013 20:54:01
Take at least one Research Photo of a Splicer.
Unlocked: 27 Feb 2013 20:16:02
Take a Research Photo of the highest grade.
Unlocked: 27 Feb 2013 20:15:45
Purchase one slot in any Plasmid or Tonic track
Unlocked: 27 Feb 2013 19:46:59
The player has defeated the crazed Dr. Steinman
Unlocked: 26 Feb 2013 20:22:33
Successfully hack a safe.
Unlocked: 26 Feb 2013 20:14:43
Successfully hack a vending machine.
Unlocked: 26 Feb 2013 19:46:47
Successfully hack a turret.
Unlocked: 26 Feb 2013 19:42:51
Successfully hack a security bot.
Unlocked: 26 Feb 2013 19:36:11
Perform at least one successful hack.
Unlocked: 26 Feb 2013 19:36:10
Successfully complete the Welcome To Rapture Level.
Unlocked: 26 Feb 2013 19:34:49
Shock an enemy in the water.
Unlocked: 26 Feb 2013 19:26:46
Complete the game on Hard difficulty without using a Vita-Chamber
Unlocked: 20 Sep 2013 15:04:38