Complete the game on the hardest difficulty setting.

Unlocked: 5 Jul 2012 06:25 am

Complete the game without harvesting any Little Sisters.

Unlocked: 5 Jul 2012 06:25 am

The player has defeated Atlas

Unlocked: 5 Jul 2012 06:24 am

Find every audio diary.

Unlocked: 5 Jul 2012 06:06 am

The player has become a Big Daddy.

Unlocked: 5 Jul 2012 06:06 am

Collect or Invent 53 Tonics in the Physical, Engineering and Combat tracks.

Unlocked: 5 Jul 2012 06:04 am

Either Harvest or Rescue every Little Sister in the game

Unlocked: 5 Jul 2012 06:01 am

Acquire all upgrades for all weapons.

Unlocked: 5 Jul 2012 05:45 am

Fully upgrade five weapons.

Unlocked: 5 Jul 2012 05:02 am

The player has broken Fontaine's mind control

Unlocked: 5 Jul 2012 04:54 am

Successfully invent at least 100 items.

Unlocked: 5 Jul 2012 04:51 am

Successfully invented all possible ammo types.

Unlocked: 5 Jul 2012 04:50 am

The player has entered Sander Cohen's personal quarters.

Unlocked: 5 Jul 2012 04:39 am

Fully upgrade four weapons.

Unlocked: 5 Jul 2012 04:28 am

Max out all possible research.

Unlocked: 5 Jul 2012 04:23 am

Fully research the Nitro Splicer.

Unlocked: 5 Jul 2012 04:23 am

The player has defeated Andrew Ryan

Unlocked: 5 Jul 2012 04:13 am

Fully research the Little Sister.

Unlocked: 5 Jul 2012 03:48 am

Fully research the Bouncer.

Unlocked: 5 Jul 2012 03:48 am

Purchased every slot in all four Plasmid and Tonic tracks

Unlocked: 5 Jul 2012 03:38 am

Fully upgrade three weapons.

Unlocked: 5 Jul 2012 03:37 am

The player has taken a picture of Sander Cohen's corpse

Unlocked: 5 Jul 2012 01:21 am

The player has completed Sander Cohen's great masterpiece

Unlocked: 5 Jul 2012 01:20 am

Fully research the Rosie.

Unlocked: 5 Jul 2012 12:39 am

Take at least one photo in every research group.

Unlocked: 5 Jul 2012 12:30 am

Fully research the Spider Splicer.

Unlocked: 5 Jul 2012 12:29 am

Fully upgrade two weapons.

Unlocked: 5 Jul 2012 12:12 am

Hit the jackpot at a slot machine

Unlocked: 4 Jul 2012 01:12 pm

The player has restored the forests of Arcadia

Unlocked: 4 Jul 2012 01:04 pm

Purchased every slot in one of the Plasmid or Tonic tracks

Unlocked: 4 Jul 2012 12:32 pm

Successfully invent at least one item.

Unlocked: 4 Jul 2012 12:28 pm

Successfully complete 50 hacks.

Unlocked: 4 Jul 2012 12:28 pm

Fully research the Houdini Splicer.

Unlocked: 4 Jul 2012 12:25 pm

Fully research the Thuggish Splicer.

Unlocked: 4 Jul 2012 12:22 pm

Fully upgrade one weapon.

Unlocked: 4 Jul 2012 12:10 pm

Acquire at least one weapon upgrade.

Unlocked: 4 Jul 2012 11:13 am

The player has defeated Peach Wilkins

Unlocked: 4 Jul 2012 11:10 am

Fully research the Leadhead Splicer.

Unlocked: 4 Jul 2012 10:51 am

Take a Research Photo of the highest grade.

Unlocked: 4 Jul 2012 10:41 am

Take at least one Research Photo of a Splicer.

Unlocked: 4 Jul 2012 10:35 am

Purchase one slot in any Plasmid or Tonic track

Unlocked: 4 Jul 2012 10:14 am

The player has defeated the crazed Dr. Steinman

Unlocked: 4 Jul 2012 09:53 am

Successfully hack a safe.

Unlocked: 4 Jul 2012 09:34 am

Successfully hack a security camera.

Unlocked: 4 Jul 2012 09:27 am

Successfully hack a turret.

Unlocked: 4 Jul 2012 09:20 am

Successfully hack a vending machine.

Unlocked: 4 Jul 2012 09:16 am

Successfully hack a security bot.

Unlocked: 4 Jul 2012 09:16 am

Perform at least one successful hack.

Unlocked: 4 Jul 2012 09:16 am

Successfully complete the Welcome To Rapture Level.

Unlocked: 28 Jun 2012 05:43 am

Shock an enemy in the water.

Unlocked: 28 Jun 2012 05:34 am

Complete the game on Hard difficulty without using a Vita-Chamber

Unlocked: 5 Jul 2012 06:25 am