Complete the game on the hardest difficulty setting.
Unlocked: 25 Dec 2016 01:17:11
Complete the game without harvesting any Little Sisters.
Unlocked: 25 Dec 2016 01:04:38
The player has defeated Atlas
Unlocked: 25 Dec 2016 01:04:04
The player has become a Big Daddy.
Unlocked: 25 Dec 2016 00:45:05
Collect or Invent 53 Tonics in the Physical, Engineering and Combat tracks.
Unlocked: 25 Dec 2016 00:44:54
Historian
50Find every audio diary.
Unlocked: 25 Dec 2016 00:43:34
Successfully invent at least 100 items.
Unlocked: 25 Dec 2016 00:41:55
Either Harvest or Rescue every Little Sister in the game
Unlocked: 25 Dec 2016 00:39:40
Acquire all upgrades for all weapons.
Unlocked: 25 Dec 2016 00:36:53
Fully upgrade five weapons.
Unlocked: 25 Dec 2016 00:23:41
The player has broken Fontaine's mind control
Unlocked: 25 Dec 2016 00:18:01
Fully research the Rosie.
Unlocked: 25 Dec 2016 00:07:04
Research PhD
20Max out all possible research.
Unlocked: 25 Dec 2016 00:07:04
Successfully invented all possible ammo types.
Unlocked: 25 Dec 2016 00:05:12
The player has entered Sander Cohen's personal quarters.
Unlocked: 24 Dec 2016 23:56:08
Fully upgrade four weapons.
Unlocked: 24 Dec 2016 23:48:02
Fully research the Nitro Splicer.
Unlocked: 24 Dec 2016 23:46:39
The player has defeated Andrew Ryan
Unlocked: 24 Dec 2016 23:33:28
Purchased every slot in all four Plasmid and Tonic tracks
Unlocked: 24 Dec 2016 23:05:13
Fully upgrade three weapons.
Unlocked: 24 Dec 2016 23:04:51
Fully research the Little Sister.
Unlocked: 24 Dec 2016 23:02:23
The player has taken a picture of Sander Cohen's corpse
Unlocked: 24 Dec 2016 22:49:55
The player has completed Sander Cohen's great masterpiece
Unlocked: 24 Dec 2016 22:48:38
Fully research the Bouncer.
Unlocked: 24 Dec 2016 22:45:27
Take at least one photo in every research group.
Unlocked: 24 Dec 2016 13:38:29
Fully upgrade two weapons.
Unlocked: 24 Dec 2016 13:26:26
Fully research the Spider Splicer.
Unlocked: 24 Dec 2016 13:19:54
Lucky Winner
10Hit the jackpot at a slot machine
Unlocked: 24 Dec 2016 12:59:19
The player has restored the forests of Arcadia
Unlocked: 24 Dec 2016 12:55:40
Successfully invent at least one item.
Unlocked: 24 Dec 2016 12:45:05
Purchased every slot in one of the Plasmid or Tonic tracks
Unlocked: 24 Dec 2016 12:28:09
Fully research the Houdini Splicer.
Unlocked: 24 Dec 2016 12:17:09
Fully upgrade one weapon.
Unlocked: 24 Dec 2016 12:16:52
Successfully complete 50 hacks.
Unlocked: 24 Dec 2016 12:09:38
Fully research the Thuggish Splicer.
Unlocked: 24 Dec 2016 12:01:45
Acquire at least one weapon upgrade.
Unlocked: 24 Dec 2016 11:33:13
The player has defeated Peach Wilkins
Unlocked: 24 Dec 2016 11:31:54
Fully research the Leadhead Splicer.
Unlocked: 24 Dec 2016 11:16:24
Take at least one Research Photo of a Splicer.
Unlocked: 24 Dec 2016 10:57:19
Take a Research Photo of the highest grade.
Unlocked: 24 Dec 2016 10:57:16
Purchase one slot in any Plasmid or Tonic track
Unlocked: 24 Dec 2016 10:46:06
The player has defeated the crazed Dr. Steinman
Unlocked: 24 Dec 2016 09:39:50
Successfully hack a safe.
Unlocked: 24 Dec 2016 09:23:41
Successfully hack a security camera.
Unlocked: 24 Dec 2016 09:21:03
Successfully hack a vending machine.
Unlocked: 24 Dec 2016 09:11:50
Successfully hack a turret.
Unlocked: 24 Dec 2016 09:09:40
Perform at least one successful hack.
Unlocked: 24 Dec 2016 09:03:50
Successfully hack a security bot.
Unlocked: 24 Dec 2016 09:03:50
Successfully complete the Welcome To Rapture Level.
Unlocked: 24 Dec 2016 08:15:35
Shock an enemy in the water.
Unlocked: 24 Dec 2016 08:05:53
Complete the game on Hard difficulty without using a Vita-Chamber
Unlocked: 25 Dec 2016 02:17:22